which included commits to RCS files with non-trunk default branches. git-svn-id: svn://10.65.10.50/trunk@5403 c028cbd2-c16b-5b4b-a496-9718f37d4682
		
			
				
	
	
		
			1973 lines
		
	
	
		
			63 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			1973 lines
		
	
	
		
			63 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
/*---------------------------------------------------------------------------
 | 
						|
 | 
						|
  fileio.c
 | 
						|
 | 
						|
  This file contains routines for doing direct but relatively generic input/
 | 
						|
  output, file-related sorts of things, plus some miscellaneous stuff.  Most
 | 
						|
  of the stuff has to do with opening, closing, reading and/or writing files.
 | 
						|
 | 
						|
  Contains:  open_input_file()
 | 
						|
             open_outfile()           (non-VMS, non-AOS/VS, non-CMS_MVS)
 | 
						|
             undefer_input()
 | 
						|
             defer_leftover_input()
 | 
						|
             readbuf()
 | 
						|
             readbyte()
 | 
						|
             fillinbuf()
 | 
						|
             flush()                  (non-VMS)
 | 
						|
             disk_error()             (non-VMS)
 | 
						|
             UzpMessagePrnt()
 | 
						|
             UzpMessageNull()         (DLL only)
 | 
						|
             UzpInput()
 | 
						|
             UzpMorePause()
 | 
						|
             UzpPassword()            (non-WINDLL)
 | 
						|
             handler()
 | 
						|
             dos_to_unix_time()       (non-VMS, non-OS/2, non-VM/CMS, non-MVS)
 | 
						|
             check_for_newer()        (non-VMS, non-OS/2, non-VM/CMS, non-MVS)
 | 
						|
             do_string()
 | 
						|
             makeword()
 | 
						|
             makelong()
 | 
						|
             str2iso()                (CRYPT && NEED_STR2ISO, only)
 | 
						|
             str2oem()                (CRYPT && NEED_STR2OEM, only)
 | 
						|
             memset()                 (ZMEM only)
 | 
						|
             memcpy()                 (ZMEM only)
 | 
						|
             zstrnicmp()
 | 
						|
             zstat()                  (REGULUS only)
 | 
						|
             fLoadFarString()         (SMALL_MEM only)
 | 
						|
             fLoadFarStringSmall()    (SMALL_MEM only)
 | 
						|
             fLoadFarStringSmall2()   (SMALL_MEM only)
 | 
						|
             zfstrcpy()               (SMALL_MEM only)
 | 
						|
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
 | 
						|
#define FILEIO_C
 | 
						|
#define UNZIP_INTERNAL
 | 
						|
#include "unzip.h"
 | 
						|
#ifdef WINDLL
 | 
						|
#  include <setjmp.h>
 | 
						|
#endif
 | 
						|
#include "crypt.h"
 | 
						|
#include "ttyio.h"
 | 
						|
 | 
						|
/* setup of codepage conversion for decryption passwords */
 | 
						|
#if CRYPT
 | 
						|
#  if (defined(CRYP_USES_ISO2OEM) && !defined(IZ_ISO2OEM_ARRAY))
 | 
						|
#    define IZ_ISO2OEM_ARRAY            /* pull in iso2oem[] table */
 | 
						|
#  endif
 | 
						|
#  if (defined(CRYP_USES_OEM2ISO) && !defined(IZ_OEM2ISO_ARRAY))
 | 
						|
#    define IZ_OEM2ISO_ARRAY            /* pull in oem2iso[] table */
 | 
						|
#  endif
 | 
						|
#endif
 | 
						|
#include "ebcdic.h"   /* definition/initialization of ebcdic[] */
 | 
						|
 | 
						|
 | 
						|
/*
 | 
						|
   Note: Under Windows, the maximum size of the buffer that can be used
 | 
						|
   with any of the *printf calls is 16,384, so win_fprintf was used to
 | 
						|
   feed the fprintf clone no more than 16K chunks at a time. This should
 | 
						|
   be valid for anything up to 64K (and probably beyond, assuming your
 | 
						|
   buffers are that big).
 | 
						|
*/
 | 
						|
#ifdef WINDLL
 | 
						|
#  define WriteError(buf,len,strm) \
 | 
						|
   (win_fprintf(strm, (extent)len, (char far *)buf) != (int)(len))
 | 
						|
#else /* !WINDLL */
 | 
						|
#  ifdef USE_FWRITE
 | 
						|
#    define WriteError(buf,len,strm) \
 | 
						|
     ((extent)fwrite((char *)(buf),1,(extent)(len),strm) != (extent)(len))
 | 
						|
#  else
 | 
						|
#    define WriteError(buf,len,strm) \
 | 
						|
     ((extent)write(fileno(strm),(char *)(buf),(extent)(len)) != (extent)(len))
 | 
						|
#  endif
 | 
						|
#endif /* ?WINDLL */
 | 
						|
 | 
						|
static int disk_error OF((__GPRO));
 | 
						|
 | 
						|
#ifdef WINDLL
 | 
						|
   extern int win_fprintf(FILE *file, unsigned int, char far *);
 | 
						|
   extern jmp_buf dll_error_return;
 | 
						|
#endif
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/****************************/
 | 
						|
/* Strings used in fileio.c */
 | 
						|
/****************************/
 | 
						|
 | 
						|
#if (defined(UNIX) || defined(DOS_OS2_W32))
 | 
						|
   static char Far CantDeleteOldFile[] = "error:  can't delete old %s\n";
 | 
						|
#ifdef UNIXBACKUP
 | 
						|
   static char Far CantRenameOldFile[] = "error:  can't rename old %s\n";
 | 
						|
   static char Far BackupSuffix[] = "~";
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
 | 
						|
static char Far CantOpenZipfile[] = "error:  can't open zipfile [ %s ]\n";
 | 
						|
#if (!defined(VMS) && !defined(AOS_VS) && !defined(CMS_MVS))
 | 
						|
   static char Far CantCreateFile[] = "error:  can't create %s\n";
 | 
						|
#endif
 | 
						|
#ifdef NOVELL_BUG_FAILSAFE
 | 
						|
   static char Far NovellBug[] =
 | 
						|
     "error:  %s: stat() says does not exist, but fopen() found anyway\n";
 | 
						|
#endif
 | 
						|
static char Far ReadError[] = "error:  zipfile read error\n";
 | 
						|
static char Far FilenameTooLongTrunc[] =
 | 
						|
  "warning:  filename too long--truncating.\n";
 | 
						|
static char Far ExtraFieldTooLong[] =
 | 
						|
  "warning:  extra field too long (%d).  Ignoring...\n";
 | 
						|
 | 
						|
#ifdef WINDLL
 | 
						|
   static char Far DiskFullQuery[] =
 | 
						|
     "%s:  write error (disk full?).\n";
 | 
						|
#else
 | 
						|
   static char Far DiskFullQuery[] =
 | 
						|
     "%s:  write error (disk full?).  Continue? (y/n/^C) ";
 | 
						|
   static char Far ZipfileCorrupt[] = "error:  zipfile probably corrupt (%s)\n";
 | 
						|
#  ifdef MORE
 | 
						|
     static char Far MorePrompt[] = "--More--(%lu)";
 | 
						|
#  endif
 | 
						|
   static char Far QuitPrompt[] =
 | 
						|
     "--- Press `Q' to quit, or any other key to continue ---";
 | 
						|
   static char Far HidePrompt[] = /* "\r                       \r"; */
 | 
						|
     "\r                                                         \r";
 | 
						|
#endif /* !WINDLL */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/******************************/
 | 
						|
/* Function open_input_file() */
 | 
						|
/******************************/
 | 
						|
 | 
						|
int open_input_file(__G)    /* return 1 if open failed */
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    /*
 | 
						|
     *  open the zipfile for reading and in BINARY mode to prevent cr/lf
 | 
						|
     *  translation, which would corrupt the bitstreams
 | 
						|
     */
 | 
						|
 | 
						|
#if (defined(UNIX) || defined(TOPS20) || defined(AOS_VS))
 | 
						|
    G.zipfd = open(G.zipfn, O_RDONLY);
 | 
						|
#else /* !(UNIX || TOPS20 || AOS_VS) */
 | 
						|
#ifdef VMS
 | 
						|
    G.zipfd = open(G.zipfn, O_RDONLY, 0, "ctx=stm");
 | 
						|
#else /* !VMS */
 | 
						|
#ifdef MACOS
 | 
						|
    G.zipfd = open(G.zipfn, 0);
 | 
						|
#else /* !MACOS */
 | 
						|
#ifdef RISCOS
 | 
						|
    G.zipfd = fopen(G.zipfn, "rb");
 | 
						|
#else /* !RISCOS */
 | 
						|
#ifdef CMS_MVS
 | 
						|
    G.zipfd = vmmvs_open_infile(__G);
 | 
						|
#else /* !CMS_MVS */
 | 
						|
    G.zipfd = open(G.zipfn, O_RDONLY | O_BINARY);
 | 
						|
#endif /* ?CMS_MVS */
 | 
						|
#endif /* ?RISCOS */
 | 
						|
#endif /* ?MACOS */
 | 
						|
#endif /* ?VMS */
 | 
						|
#endif /* ?(UNIX || TOPS20 || AOS_VS) */
 | 
						|
 | 
						|
#ifdef USE_STRM_INPUT
 | 
						|
    if (G.zipfd == NULL)
 | 
						|
#else
 | 
						|
    /* if (G.zipfd < 0) */  /* no good for Windows CE port */
 | 
						|
    if (G.zipfd == -1)
 | 
						|
#endif
 | 
						|
    {
 | 
						|
        Info(slide, 0x401, ((char *)slide, LoadFarString(CantOpenZipfile),
 | 
						|
          G.zipfn));
 | 
						|
        return 1;
 | 
						|
    }
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function open_input_file() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#if (!defined(VMS) && !defined(AOS_VS) && !defined(CMS_MVS))
 | 
						|
 | 
						|
/***************************/
 | 
						|
/* Function open_outfile() */
 | 
						|
/***************************/
 | 
						|
 | 
						|
int open_outfile(__G)         /* return 1 if fail */
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
#ifdef DLL
 | 
						|
    if (G.redirect_data)
 | 
						|
        return (redirect_outfile(__G) == FALSE);
 | 
						|
#endif
 | 
						|
#ifdef QDOS
 | 
						|
    QFilename(__G__ G.filename);
 | 
						|
#endif
 | 
						|
#if (defined(DOS_OS2_W32) || defined(UNIX))
 | 
						|
#ifdef BORLAND_STAT_BUG
 | 
						|
    /* Borland 5.0's stat() barfs if the filename has no extension and the
 | 
						|
     * file doesn't exist. */
 | 
						|
    if (access(G.filename, 0) == -1) {
 | 
						|
        FILE *tmp = fopen(G.filename, "wb+");
 | 
						|
 | 
						|
        /* file doesn't exist, so create a dummy file to keep stat() from
 | 
						|
         * failing (will be over-written anyway) */
 | 
						|
        fputc('0', tmp);  /* just to have something in the file */
 | 
						|
        fclose(tmp);
 | 
						|
    }
 | 
						|
#endif /* BORLAND_STAT_BUG */
 | 
						|
    if (SSTAT(G.filename, &G.statbuf) == 0) {
 | 
						|
        Trace((stderr, "open_outfile:  stat(%s) returns 0 (file exists)\n",
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
#ifdef UNIXBACKUP
 | 
						|
        if (G.B_flag) {    /* do backup */
 | 
						|
            char *tname;
 | 
						|
            int blen, flen, tlen;
 | 
						|
 | 
						|
            blen = strlen(BackupSuffix);
 | 
						|
            flen = strlen(G.filename);
 | 
						|
            tlen = flen + blen + 1;
 | 
						|
            if (tlen >= FILNAMSIZ) {   /* in case name is too long, truncate */
 | 
						|
                tname = (char *)malloc(FILNAMSIZ);
 | 
						|
                if (tname == NULL)
 | 
						|
                    return 1;                 /* in case we run out of space */
 | 
						|
                tlen = FILNAMSIZ - 1 - blen;
 | 
						|
                strcpy(tname, G.filename);    /* make backup name */
 | 
						|
                tname[tlen] = '\0';
 | 
						|
            } else {
 | 
						|
                tname = (char *)malloc(tlen);
 | 
						|
                if (tname == NULL)
 | 
						|
                    return 1;                 /* in case we run out of space */
 | 
						|
                strcpy(tname, G.filename);    /* make backup name */
 | 
						|
            }
 | 
						|
            strcpy(tname+flen, BackupSuffix);
 | 
						|
 | 
						|
            /* GRR:  should check if backup file exists, apply -n/-o to that */
 | 
						|
            if (rename(G.filename, tname) < 0) {   /* move file */
 | 
						|
                Info(slide, 0x401, ((char *)slide,
 | 
						|
                  LoadFarString(CantRenameOldFile), FnFilter1(G.filename)));
 | 
						|
                free(tname);
 | 
						|
                return 1;
 | 
						|
            }
 | 
						|
            free(tname);
 | 
						|
        } else
 | 
						|
#endif /* UNIXBACKUP */
 | 
						|
#ifdef DOS_OS2_W32
 | 
						|
        if (!(G.statbuf.st_mode & S_IWRITE)) {
 | 
						|
            Trace((stderr, "open_outfile:  existing file %s is read-only\n",
 | 
						|
              FnFilter1(G.filename)));
 | 
						|
            chmod(G.filename, S_IREAD | S_IWRITE);
 | 
						|
            Trace((stderr, "open_outfile:  %s now writable\n",
 | 
						|
              FnFilter1(G.filename)));
 | 
						|
        }
 | 
						|
#endif /* DOS_OS2_W32 */
 | 
						|
        if (unlink(G.filename) != 0) {
 | 
						|
            Info(slide, 0x401, ((char *)slide,
 | 
						|
              LoadFarString(CantDeleteOldFile), FnFilter1(G.filename)));
 | 
						|
            return 1;
 | 
						|
        }
 | 
						|
        Trace((stderr, "open_outfile:  %s now deleted\n",
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
    }
 | 
						|
#endif /* DOS_OS2_W32 || UNIX */
 | 
						|
#ifdef RISCOS
 | 
						|
    if (SWI_OS_File_7(G.filename,0xDEADDEAD,0xDEADDEAD,G.lrec.ucsize)!=NULL) {
 | 
						|
        Info(slide, 1, ((char *)slide, LoadFarString(CantCreateFile),
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
        return 1;
 | 
						|
    }
 | 
						|
#endif /* RISCOS */
 | 
						|
#ifdef TOPS20
 | 
						|
    char *tfilnam;
 | 
						|
 | 
						|
    if ((tfilnam = (char *)malloc(2*strlen(G.filename)+1)) == (char *)NULL)
 | 
						|
        return 1;
 | 
						|
    strcpy(tfilnam, G.filename);
 | 
						|
    upper(tfilnam);
 | 
						|
    enquote(tfilnam);
 | 
						|
    if ((G.outfile = fopen(tfilnam, FOPW)) == (FILE *)NULL) {
 | 
						|
        Info(slide, 1, ((char *)slide, LoadFarString(CantCreateFile),
 | 
						|
          tfilnam));
 | 
						|
        free(tfilnam);
 | 
						|
        return 1;
 | 
						|
    }
 | 
						|
    free(tfilnam);
 | 
						|
#else /* !TOPS20 */
 | 
						|
#ifdef MTS
 | 
						|
    if (G.aflag)
 | 
						|
        G.outfile = fopen(G.filename, FOPWT);
 | 
						|
    else
 | 
						|
        G.outfile = fopen(G.filename, FOPW);
 | 
						|
    if (G.outfile == (FILE *)NULL) {
 | 
						|
        Info(slide, 1, ((char *)slide, LoadFarString(CantCreateFile),
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
        return 1;
 | 
						|
    }
 | 
						|
#else /* !MTS */
 | 
						|
#ifdef DEBUG
 | 
						|
    Info(slide, 1, ((char *)slide,
 | 
						|
      "open_outfile:  doing fopen(%s) for reading\n", FnFilter1(G.filename)));
 | 
						|
    if ((G.outfile = fopen(G.filename, FOPR)) == (FILE *)NULL)
 | 
						|
        Info(slide, 1, ((char *)slide,
 | 
						|
          "open_outfile:  fopen(%s) for reading failed:  does not exist\n",
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
    else {
 | 
						|
        Info(slide, 1, ((char *)slide,
 | 
						|
          "open_outfile:  fopen(%s) for reading succeeded:  file exists\n",
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
        fclose(G.outfile);
 | 
						|
    }
 | 
						|
#endif /* DEBUG */
 | 
						|
#ifdef NOVELL_BUG_FAILSAFE
 | 
						|
    if (G.dne && ((G.outfile = fopen(G.filename, FOPR)) != (FILE *)NULL)) {
 | 
						|
        Info(slide, 0x401, ((char *)slide, LoadFarString(NovellBug),
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
        fclose(G.outfile);
 | 
						|
        return 1;   /* with "./" fix in checkdir(), should never reach here */
 | 
						|
    }
 | 
						|
#endif /* NOVELL_BUG_FAILSAFE */
 | 
						|
    Trace((stderr, "open_outfile:  doing fopen(%s) for writing\n",
 | 
						|
      FnFilter1(G.filename)));
 | 
						|
    if ((G.outfile = fopen(G.filename, FOPW)) == (FILE *)NULL) {
 | 
						|
        Info(slide, 0x401, ((char *)slide, LoadFarString(CantCreateFile),
 | 
						|
          FnFilter1(G.filename)));
 | 
						|
        return 1;
 | 
						|
    }
 | 
						|
    Trace((stderr, "open_outfile:  fopen(%s) for writing succeeded\n",
 | 
						|
      FnFilter1(G.filename)));
 | 
						|
#endif /* !MTS */
 | 
						|
#endif /* !TOPS20 */
 | 
						|
 | 
						|
#if 0  /* This SUCKS!  On Ultrix it must be writing one byte at a time... */
 | 
						|
    setbuf(G.outfile, (char *)NULL);   /* make output unbuffered */
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef USE_FWRITE
 | 
						|
#ifdef DOS_OS2_W32
 | 
						|
    /* 16-bit MSC: buffer size must be strictly LESS than 32K (WSIZE):  bogus */
 | 
						|
    setbuf(G.outfile, (char *)NULL);   /* make output unbuffered */
 | 
						|
#else /* !DOS_OS2_W32 */
 | 
						|
#ifndef RISCOS
 | 
						|
#ifdef _IOFBF  /* make output fully buffered (works just about like write()) */
 | 
						|
    setvbuf(G.outfile, (char *)slide, _IOFBF, WSIZE);
 | 
						|
#else
 | 
						|
    setbuf(G.outfile, (char *)slide);
 | 
						|
#endif
 | 
						|
#endif /* !RISCOS */
 | 
						|
#endif /* ?DOS_OS2_W32 */
 | 
						|
#endif /* USE_FWRITE */
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function open_outfile() */
 | 
						|
 | 
						|
#endif /* !VMS && !AOS_VS && !CMS_MVS */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/*
 | 
						|
 * These functions allow NEXTBYTE to function without needing two bounds
 | 
						|
 * checks.  Call defer_leftover_input() if you ever have filled G.inbuf
 | 
						|
 * by some means other than readbyte(), and you then want to start using
 | 
						|
 * NEXTBYTE.  When going back to processing bytes without NEXTBYTE, call
 | 
						|
 * undefer_input().  For example, extract_or_test_member brackets its
 | 
						|
 * central section that does the decompression with these two functions.
 | 
						|
 * If you need to check the number of bytes remaining in the current
 | 
						|
 * file while using NEXTBYTE, check (G.csize + G.incnt), not G.csize.
 | 
						|
 */
 | 
						|
 | 
						|
/****************************/
 | 
						|
/* function undefer_input() */
 | 
						|
/****************************/
 | 
						|
 | 
						|
void undefer_input(__G)
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    if (G.incnt > 0)
 | 
						|
        G.csize += G.incnt;
 | 
						|
    if (G.incnt_leftover > 0) {
 | 
						|
        /* We know that "(G.csize < MAXINT)" so we can cast G.csize to int:
 | 
						|
         * This condition was checked when G.incnt_leftover was set > 0 in
 | 
						|
         * defer_leftover_input(), and it is NOT allowed to touch G.csize
 | 
						|
         * before calling undefer_input() when (G.incnt_leftover > 0)
 | 
						|
         * (single exception: see read_byte()'s  "G.csize <= 0" handling) !!
 | 
						|
         */
 | 
						|
        G.incnt = G.incnt_leftover + (int)G.csize;
 | 
						|
        G.inptr = G.inptr_leftover - (int)G.csize;
 | 
						|
        G.incnt_leftover = 0;
 | 
						|
    } else if (G.incnt < 0)
 | 
						|
        G.incnt = 0;
 | 
						|
} /* end function undefer_input() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/***********************************/
 | 
						|
/* function defer_leftover_input() */
 | 
						|
/***********************************/
 | 
						|
 | 
						|
void defer_leftover_input(__G)
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    if ((long)G.incnt > G.csize) {
 | 
						|
        /* (G.csize < MAXINT), we can safely cast it to int !! */
 | 
						|
        if (G.csize < 0L)
 | 
						|
            G.csize = 0L;
 | 
						|
        G.inptr_leftover = G.inptr + (int)G.csize;
 | 
						|
        G.incnt_leftover = G.incnt - (int)G.csize;
 | 
						|
        G.incnt = (int)G.csize;
 | 
						|
    } else
 | 
						|
        G.incnt_leftover = 0;
 | 
						|
    G.csize -= G.incnt;
 | 
						|
} /* end function defer_leftover_input() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/**********************/
 | 
						|
/* Function readbuf() */
 | 
						|
/**********************/
 | 
						|
 | 
						|
unsigned readbuf(__G__ buf, size)   /* return number of bytes read into buf */
 | 
						|
    __GDEF
 | 
						|
    char *buf;
 | 
						|
    register unsigned size;
 | 
						|
{
 | 
						|
    register unsigned count;
 | 
						|
    unsigned n;
 | 
						|
 | 
						|
    n = size;
 | 
						|
    while (size) {
 | 
						|
        if (G.incnt <= 0) {
 | 
						|
            if ((G.incnt = read(G.zipfd, (char *)G.inbuf, INBUFSIZ)) == 0)
 | 
						|
                return (n-size);
 | 
						|
            else if (G.incnt < 0) {
 | 
						|
                /* another hack, but no real harm copying same thing twice */
 | 
						|
                (*G.message)((zvoid *)&G,
 | 
						|
                  (uch *)LoadFarString(ReadError),  /* CANNOT use slide */
 | 
						|
                  (ulg)strlen(LoadFarString(ReadError)), 0x401);
 | 
						|
                return 0;  /* discarding some data; better than lock-up */
 | 
						|
            }
 | 
						|
            /* buffer ALWAYS starts on a block boundary:  */
 | 
						|
            G.cur_zipfile_bufstart += INBUFSIZ;
 | 
						|
            G.inptr = G.inbuf;
 | 
						|
        }
 | 
						|
        count = MIN(size, (unsigned)G.incnt);
 | 
						|
        memcpy(buf, G.inptr, count);
 | 
						|
        buf += count;
 | 
						|
        G.inptr += count;
 | 
						|
        G.incnt -= count;
 | 
						|
        size -= count;
 | 
						|
    }
 | 
						|
    return n;
 | 
						|
 | 
						|
} /* end function readbuf() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/***********************/
 | 
						|
/* Function readbyte() */
 | 
						|
/***********************/
 | 
						|
 | 
						|
int readbyte(__G)   /* refill inbuf and return a byte if available, else EOF */
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    if (G.mem_mode)
 | 
						|
        return EOF;
 | 
						|
    if (G.csize <= 0) {
 | 
						|
        G.csize--;             /* for tests done after exploding */
 | 
						|
        G.incnt = 0;
 | 
						|
        return EOF;
 | 
						|
    }
 | 
						|
    if (G.incnt <= 0) {
 | 
						|
        if ((G.incnt = read(G.zipfd, (char *)G.inbuf, INBUFSIZ)) == 0) {
 | 
						|
            G.incnt = 0;       /* do not allow negative value to affect stuff */
 | 
						|
            return EOF;
 | 
						|
        } else if (G.incnt < 0) {  /* "fail" (abort, retry, ...) returns this */
 | 
						|
            /* another hack, but no real harm copying same thing twice */
 | 
						|
            (*G.message)((zvoid *)&G,
 | 
						|
              (uch *)LoadFarString(ReadError),
 | 
						|
              (ulg)strlen(LoadFarString(ReadError)), 0x401);
 | 
						|
            echon();
 | 
						|
#ifdef WINDLL
 | 
						|
            longjmp(dll_error_return, 1);
 | 
						|
#else
 | 
						|
            DESTROYGLOBALS()
 | 
						|
            EXIT(PK_BADERR);    /* totally bailing; better than lock-up */
 | 
						|
#endif
 | 
						|
        }
 | 
						|
        G.cur_zipfile_bufstart += INBUFSIZ; /* always starts on block bndry */
 | 
						|
        G.inptr = G.inbuf;
 | 
						|
        defer_leftover_input(__G);           /* decrements G.csize */
 | 
						|
    }
 | 
						|
 | 
						|
#if CRYPT
 | 
						|
    if (G.pInfo->encrypted) {
 | 
						|
        uch *p;
 | 
						|
        int n;
 | 
						|
 | 
						|
        /* This was previously set to decrypt one byte beyond G.csize, when
 | 
						|
         * incnt reached that far.  GRR said, "but it's required:  why?"  This
 | 
						|
         * was a bug in fillinbuf() -- was it also a bug here?
 | 
						|
         */
 | 
						|
        for (n = G.incnt, p = G.inptr;  n--;  p++)
 | 
						|
            zdecode(*p);
 | 
						|
    }
 | 
						|
#endif /* CRYPT */
 | 
						|
 | 
						|
    --G.incnt;
 | 
						|
    return *G.inptr++;
 | 
						|
 | 
						|
} /* end function readbyte() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifdef USE_ZLIB
 | 
						|
 | 
						|
/************************/
 | 
						|
/* Function fillinbuf() */
 | 
						|
/************************/
 | 
						|
 | 
						|
int fillinbuf(__G) /* like readbyte() except returns number of bytes in inbuf */
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    if (G.mem_mode ||
 | 
						|
                  (G.incnt = read(G.zipfd, (char *)G.inbuf, INBUFSIZ)) <= 0)
 | 
						|
        return 0;
 | 
						|
    G.cur_zipfile_bufstart += INBUFSIZ;  /* always starts on a block boundary */
 | 
						|
    G.inptr = G.inbuf;
 | 
						|
    defer_leftover_input(__G);           /* decrements G.csize */
 | 
						|
 | 
						|
#if CRYPT
 | 
						|
    if (G.pInfo->encrypted) {
 | 
						|
        uch *p;
 | 
						|
        int n;
 | 
						|
 | 
						|
        for (n = G.incnt, p = G.inptr;  n--;  p++)
 | 
						|
            zdecode(*p);
 | 
						|
    }
 | 
						|
#endif /* CRYPT */
 | 
						|
 | 
						|
    return G.incnt;
 | 
						|
 | 
						|
} /* end function fillinbuf() */
 | 
						|
 | 
						|
#endif /* USE_ZLIB */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifndef VMS  /* for VMS use code in vms.c */
 | 
						|
 | 
						|
/********************/
 | 
						|
/* Function flush() */   /* if cflag => always returns 0; 50 if write error */
 | 
						|
/********************/
 | 
						|
 | 
						|
int flush(__G__ rawbuf, size, unshrink)
 | 
						|
    __GDEF
 | 
						|
    uch *rawbuf;
 | 
						|
    ulg size;
 | 
						|
    int unshrink;
 | 
						|
{
 | 
						|
    register uch *p, *q;
 | 
						|
    uch *transbuf;
 | 
						|
#if (defined(SMALL_MEM) || defined(MED_MEM) || defined(VMS_TEXT_CONV))
 | 
						|
    ulg transbufsiz;
 | 
						|
#endif
 | 
						|
    /* static int didCRlast = FALSE;    moved to globals.h */
 | 
						|
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Compute the CRC first; if testing or if disk is full, that's it.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
    G.crc32val = crc32(G.crc32val, rawbuf, (extent)size);
 | 
						|
 | 
						|
    if (G.tflag || size == 0L)   /* testing or nothing to write:  all done */
 | 
						|
        return 0;
 | 
						|
 | 
						|
    if (G.disk_full)
 | 
						|
        return 50;            /* disk already full:  ignore rest of file */
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Write the bytes rawbuf[0..size-1] to the output device, first converting
 | 
						|
    end-of-lines and ASCII/EBCDIC as needed.  If SMALL_MEM or MED_MEM are NOT
 | 
						|
    defined, outbuf is assumed to be at least as large as rawbuf and is not
 | 
						|
    necessarily checked for overflow.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
    if (!G.pInfo->textmode) {   /* write raw binary data */
 | 
						|
        /* GRR:  note that for standard MS-DOS compilers, size argument to
 | 
						|
         * fwrite() can never be more than 65534, so WriteError macro will
 | 
						|
         * have to be rewritten if size can ever be that large.  For now,
 | 
						|
         * never more than 32K.  Also note that write() returns an int, which
 | 
						|
         * doesn't necessarily limit size to 32767 bytes if write() is used
 | 
						|
         * on 16-bit systems but does make it more of a pain; however, because
 | 
						|
         * at least MSC 5.1 has a lousy implementation of fwrite() (as does
 | 
						|
         * DEC Ultrix cc), write() is used anyway.
 | 
						|
         */
 | 
						|
#ifdef DLL
 | 
						|
        if (G.redirect_data)
 | 
						|
            writeToMemory(__G__ rawbuf, size);
 | 
						|
        else
 | 
						|
#endif
 | 
						|
        if (!G.cflag && WriteError(rawbuf, size, G.outfile))
 | 
						|
            return disk_error(__G);
 | 
						|
        else if (G.cflag && (*G.message)((zvoid *)&G, rawbuf, size, 0))
 | 
						|
            return 0;
 | 
						|
    } else {   /* textmode:  aflag is true */
 | 
						|
        if (unshrink) {
 | 
						|
            /* rawbuf = outbuf */
 | 
						|
            transbuf = G.outbuf2;
 | 
						|
#if (defined(SMALL_MEM) || defined(MED_MEM) || defined(VMS_TEXT_CONV))
 | 
						|
            transbufsiz = TRANSBUFSIZ;
 | 
						|
#endif
 | 
						|
        } else {
 | 
						|
            /* rawbuf = slide */
 | 
						|
            transbuf = G.outbuf;
 | 
						|
#if (defined(SMALL_MEM) || defined(MED_MEM) || defined(VMS_TEXT_CONV))
 | 
						|
            transbufsiz = OUTBUFSIZ;
 | 
						|
            Trace((stderr, "\ntransbufsiz = OUTBUFSIZ = %u\n", OUTBUFSIZ));
 | 
						|
#endif
 | 
						|
        }
 | 
						|
        if (G.newfile) {
 | 
						|
#ifdef VMS_TEXT_CONV
 | 
						|
            /* GRR: really want to check if -aa (or -aaa?) was given... */
 | 
						|
            if (rawbuf[1]) {       /* first line is more than 255 chars long */
 | 
						|
                Trace((stderr,
 | 
						|
      "\nfirst line of VMS `text' too long; switching to normal extraction\n"));
 | 
						|
                G.VMS_line_state = -1;   /* -1: don't treat as VMS text */
 | 
						|
            } else
 | 
						|
                G.VMS_line_state = 0;    /* 0: ready to read line length */
 | 
						|
#endif
 | 
						|
            G.didCRlast = FALSE;         /* no previous buffers written */
 | 
						|
            G.newfile = FALSE;
 | 
						|
        }
 | 
						|
 | 
						|
#ifdef VMS_TEXT_CONV
 | 
						|
        if (G.pInfo->hostnum == VMS_ && G.extra_field && G.VMS_line_state >= 0)
 | 
						|
        {
 | 
						|
            /* GRR: really want to check for actual VMS extra field, and
 | 
						|
             *      ideally for variable-length record format */
 | 
						|
/*
 | 
						|
            printf("\n>>>>>> GRR:  file is VMS text and has an extra field\n");
 | 
						|
 */
 | 
						|
 | 
						|
            p = rawbuf;
 | 
						|
            q = transbuf;
 | 
						|
            while(p < rawbuf+(unsigned)size) {
 | 
						|
                switch (G.VMS_line_state) {
 | 
						|
 | 
						|
                    /* 0: ready to read line length */
 | 
						|
                    case 0:
 | 
						|
                        G.VMS_line_length = 0;
 | 
						|
                        G.VMS_line_pad = 0;
 | 
						|
                        if (p == rawbuf+(unsigned)size-1) {    /* last char */
 | 
						|
                            G.VMS_line_length = (int)((uch)(*p++));
 | 
						|
                            G.VMS_line_state = 1;
 | 
						|
                        } else {
 | 
						|
                            G.VMS_line_length = makeword(p);
 | 
						|
                            p += 2;
 | 
						|
                            G.VMS_line_state = 2;
 | 
						|
                        }
 | 
						|
                        if (G.VMS_line_length & 1)   /* odd */
 | 
						|
                            G.VMS_line_pad = 1;
 | 
						|
                        break;
 | 
						|
 | 
						|
                    /* 1: read one byte of length, need second */
 | 
						|
                    case 1:
 | 
						|
                        G.VMS_line_length += ((int)((uch)(*p++)) << 8);
 | 
						|
                        G.VMS_line_state = 2;
 | 
						|
                        break;
 | 
						|
 | 
						|
                    /* 2: ready to read VMS_line_length chars */
 | 
						|
                    case 2:
 | 
						|
                        if (G.VMS_line_length < rawbuf+(unsigned)size-p) {
 | 
						|
                            if (G.VMS_line_length >=
 | 
						|
                                transbuf+(unsigned)transbufsiz-q)
 | 
						|
                            {
 | 
						|
                                int outroom = transbuf+(unsigned)transbufsiz-q;
 | 
						|
 | 
						|
/* GRR:  need to change this to *q++ = native(*p++); loop or something */
 | 
						|
                                memcpy(q, p, outroom);
 | 
						|
#ifdef DLL
 | 
						|
                                if (G.redirect_data)
 | 
						|
                                    writeToMemory(__G__ transbuf,
 | 
						|
                                      (unsigned)outroom);
 | 
						|
                                else
 | 
						|
#endif
 | 
						|
                                if (!G.cflag && WriteError(transbuf,
 | 
						|
                                    (unsigned)outroom, G.outfile))
 | 
						|
                                    return disk_error(__G);
 | 
						|
                                else if (G.cflag && (*G.message)((zvoid *)&G,
 | 
						|
                                         transbuf, (ulg)outroom, 0))
 | 
						|
                                    return 0;
 | 
						|
                                q = transbuf;
 | 
						|
                                p += outroom;
 | 
						|
                                G.VMS_line_length -= outroom;
 | 
						|
                                /* fall through to normal case */
 | 
						|
                            }
 | 
						|
/* GRR:  need to change this to *q++ = native(*p++); loop or something */
 | 
						|
                            memcpy(q, p, G.VMS_line_length);
 | 
						|
                            q += G.VMS_line_length;
 | 
						|
                            p += G.VMS_line_length;
 | 
						|
                            G.VMS_line_length = 0;   /* necessary?? */
 | 
						|
                            G.VMS_line_state = 3;
 | 
						|
 | 
						|
                        } else {  /* remaining input is less than full line */
 | 
						|
                            int remaining = rawbuf+(unsigned)size-p;
 | 
						|
 | 
						|
                            if (remaining <
 | 
						|
                                transbuf+(unsigned)transbufsiz-q)
 | 
						|
                            {
 | 
						|
                                int outroom = transbuf+(unsigned)transbufsiz-q;
 | 
						|
 | 
						|
/* GRR:  need to change this to *q++ = native(*p++); loop or something */
 | 
						|
                                memcpy(q, p, outroom);
 | 
						|
#ifdef DLL
 | 
						|
                                if (G.redirect_data)
 | 
						|
                                    writeToMemory(__G__ transbuf,
 | 
						|
                                      (unsigned)(outroom));
 | 
						|
                                else
 | 
						|
#endif
 | 
						|
                                if (!G.cflag && WriteError(transbuf,
 | 
						|
                                    (unsigned)outroom, G.outfile))
 | 
						|
                                    return disk_error(__G);
 | 
						|
                                else if (G.cflag && (*G.message)((zvoid *)&G,
 | 
						|
                                         transbuf, (ulg)outroom, 0))
 | 
						|
                                    return 0;
 | 
						|
                                q = transbuf;
 | 
						|
                                p += outroom;
 | 
						|
                                remaining -= outroom;
 | 
						|
                            }
 | 
						|
/* GRR:  need to change this to *q++ = native(*p++); loop or something */
 | 
						|
                            memcpy(q, p, remaining);
 | 
						|
                            q += remaining;
 | 
						|
                            p += remaining;
 | 
						|
                            G.VMS_line_length -= remaining;
 | 
						|
                            /* no change in G.VMS_line_state */
 | 
						|
                        }
 | 
						|
                        break;
 | 
						|
 | 
						|
                    /* 3: ready to PutNativeEOL */
 | 
						|
                    case 3:
 | 
						|
                        if (q > transbuf+(unsigned)transbufsiz-lenEOL) {
 | 
						|
#ifdef DLL
 | 
						|
                            if (G.redirect_data)
 | 
						|
                                writeToMemory(__G__ transbuf,
 | 
						|
                                  (unsigned)(q-transbuf));
 | 
						|
                            else
 | 
						|
#endif
 | 
						|
                            if (!G.cflag &&
 | 
						|
                                WriteError(transbuf, (unsigned)(q-transbuf),
 | 
						|
                                  G.outfile))
 | 
						|
                                return disk_error(__G);
 | 
						|
                            else if (G.cflag && (*G.message)((zvoid *)&G,
 | 
						|
                                     transbuf, (ulg)(q-transbuf), 0))
 | 
						|
                                return 0;
 | 
						|
                            q = transbuf;
 | 
						|
                        }
 | 
						|
                        PutNativeEOL
 | 
						|
                        if (G.VMS_line_pad)
 | 
						|
                            if (p < rawbuf+(unsigned)size) {
 | 
						|
                                ++p;
 | 
						|
                                G.VMS_line_state = 0;
 | 
						|
                            } else
 | 
						|
                                G.VMS_line_state = 4;
 | 
						|
                        else
 | 
						|
                            G.VMS_line_state = 0;
 | 
						|
                        break;
 | 
						|
 | 
						|
                    /* 4: ready to read pad byte */
 | 
						|
                    case 4:
 | 
						|
                        ++p;
 | 
						|
                        G.VMS_line_state = 0;
 | 
						|
                        break;
 | 
						|
                }
 | 
						|
            } /* end while */
 | 
						|
 | 
						|
        } else
 | 
						|
#endif /* VMS_TEXT_CONV */
 | 
						|
 | 
						|
    /*-----------------------------------------------------------------------
 | 
						|
        Algorithm:  CR/LF => native; lone CR => native; lone LF => native.
 | 
						|
        This routine is only for non-raw-VMS, non-raw-VM/CMS files (i.e.,
 | 
						|
        stream-oriented files, not record-oriented).
 | 
						|
      -----------------------------------------------------------------------*/
 | 
						|
 | 
						|
        /* else not VMS text */ {
 | 
						|
            p = rawbuf;
 | 
						|
            if (*p == LF && G.didCRlast)
 | 
						|
                ++p;
 | 
						|
            G.didCRlast = FALSE;
 | 
						|
            for (q = transbuf;  p < rawbuf+(unsigned)size;  ++p) {
 | 
						|
                if (*p == CR) {           /* lone CR or CR/LF: EOL either way */
 | 
						|
                    PutNativeEOL
 | 
						|
                    if (p == rawbuf+(unsigned)size-1)  /* last char in buffer */
 | 
						|
                        G.didCRlast = TRUE;
 | 
						|
                    else if (p[1] == LF)  /* get rid of accompanying LF */
 | 
						|
                        ++p;
 | 
						|
                } else if (*p == LF)      /* lone LF */
 | 
						|
                    PutNativeEOL
 | 
						|
                else
 | 
						|
#ifndef DOS_OS2_W32
 | 
						|
                if (*p != CTRLZ)          /* lose all ^Z's */
 | 
						|
#endif
 | 
						|
                    *q++ = native(*p);
 | 
						|
 | 
						|
#if (defined(SMALL_MEM) || defined(MED_MEM))
 | 
						|
# if (lenEOL == 1)   /* don't check unshrink:  both buffers small but equal */
 | 
						|
                if (!unshrink)
 | 
						|
# endif
 | 
						|
                    /* check for danger of buffer overflow and flush */
 | 
						|
                    if (q > transbuf+(unsigned)transbufsiz-lenEOL) {
 | 
						|
                        Trace((stderr,
 | 
						|
                          "p - rawbuf = %u   q-transbuf = %u   size = %lu\n",
 | 
						|
                          (unsigned)(p-rawbuf), (unsigned)(q-transbuf), size));
 | 
						|
                        if (!G.cflag && WriteError(transbuf,
 | 
						|
                            (unsigned)(q-transbuf), G.outfile))
 | 
						|
                            return disk_error(__G);
 | 
						|
                        else if (G.cflag && (*G.message)((zvoid *)&G, transbuf,
 | 
						|
                                 (ulg)(q-transbuf), 0))
 | 
						|
                            return 0;
 | 
						|
                        q = transbuf;
 | 
						|
                        continue;
 | 
						|
                    }
 | 
						|
#endif /* SMALL_MEM || MED_MEM */
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
    /*-----------------------------------------------------------------------
 | 
						|
        Done translating:  write whatever we've got to file (or screen).
 | 
						|
      -----------------------------------------------------------------------*/
 | 
						|
 | 
						|
        Trace((stderr, "p - rawbuf = %u   q-transbuf = %u   size = %lu\n",
 | 
						|
          (unsigned)(p-rawbuf), (unsigned)(q-transbuf), size));
 | 
						|
        if (q > transbuf)
 | 
						|
#ifdef DLL
 | 
						|
            if (G.redirect_data)
 | 
						|
                writeToMemory(__G__ transbuf, (unsigned)(q-transbuf));
 | 
						|
            else
 | 
						|
#endif
 | 
						|
            if (!G.cflag && WriteError(transbuf, (unsigned)(q-transbuf),
 | 
						|
                G.outfile))
 | 
						|
                return disk_error(__G);
 | 
						|
            else if (G.cflag && (*G.message)((zvoid *)&G, transbuf,
 | 
						|
                (ulg)(q-transbuf), 0))
 | 
						|
                return 0;
 | 
						|
    }
 | 
						|
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function flush() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/*************************/
 | 
						|
/* Function disk_error() */
 | 
						|
/*************************/
 | 
						|
 | 
						|
static int disk_error(__G)
 | 
						|
    __GDEF
 | 
						|
{
 | 
						|
    /* OK to use slide[] here because this file is finished regardless */
 | 
						|
    Info(slide, 0x4a1, ((char *)slide, LoadFarString(DiskFullQuery),
 | 
						|
      FnFilter1(G.filename)));
 | 
						|
 | 
						|
#ifndef WINDLL
 | 
						|
    fgets(G.answerbuf, 9, stdin);
 | 
						|
    if (*G.answerbuf == 'y')   /* stop writing to this file */
 | 
						|
        G.disk_full = 1;       /*  (outfile bad?), but new OK */
 | 
						|
    else
 | 
						|
#endif
 | 
						|
        G.disk_full = 2;       /* no:  exit program */
 | 
						|
 | 
						|
    return PK_DISK;
 | 
						|
 | 
						|
} /* end function disk_error() */
 | 
						|
 | 
						|
#endif /* !VMS */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/*****************************/
 | 
						|
/* Function UzpMessagePrnt() */
 | 
						|
/*****************************/
 | 
						|
 | 
						|
int UZ_EXP UzpMessagePrnt(pG, buf, size, flag)
 | 
						|
    zvoid *pG;   /* globals struct:  always passed */
 | 
						|
    uch *buf;    /* preformatted string to be printed */
 | 
						|
    ulg size;    /* length of string (may include nulls) */
 | 
						|
    int flag;    /* flag bits */
 | 
						|
{
 | 
						|
    /* IMPORTANT NOTE:
 | 
						|
     *    The name of the first parameter of UzpMessagePrnt(), which passes
 | 
						|
     *    the struct Globals address, >>> MUST <<< be identical to the string
 | 
						|
     *    expansion of the __G__ macro in the REENTRANT case (see globals.h).
 | 
						|
     *    This name identity is mandatory for the LoadFarString() macro
 | 
						|
     *    (in the SMALL_MEM case) !!!
 | 
						|
     */
 | 
						|
    int error;
 | 
						|
    uch *q=buf, *endbuf=buf+(unsigned)size;
 | 
						|
#ifdef MORE
 | 
						|
    uch *p=buf-1;
 | 
						|
#endif
 | 
						|
    FILE *outfp;
 | 
						|
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    These tests are here to allow fine-tuning of UnZip's output messages,
 | 
						|
    but none of them will do anything without setting the appropriate bit
 | 
						|
    in the flag argument of every Info() statement which is to be turned
 | 
						|
    *off*.  That is, all messages are currently turned on for all ports.
 | 
						|
    To turn off *all* messages, use the UzpMessageNull() function instead
 | 
						|
    of this one.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
#if (defined(OS2) && defined(DLL))
 | 
						|
    if (MSG_NO_DLL2(flag))  /* if OS/2 DLL bit is set, do NOT print this msg */
 | 
						|
        return 0;
 | 
						|
#endif
 | 
						|
#ifdef WINDLL
 | 
						|
    if (MSG_NO_WDLL(flag))
 | 
						|
        return 0;
 | 
						|
#endif
 | 
						|
#ifdef WINDLL
 | 
						|
    if (MSG_NO_WGUI(flag))
 | 
						|
        return 0;
 | 
						|
#endif
 | 
						|
/*
 | 
						|
#ifdef ACORN_GUI
 | 
						|
    if (MSG_NO_AGUI(flag))
 | 
						|
        return 0;
 | 
						|
#endif
 | 
						|
 */
 | 
						|
#ifdef DLL                    /* don't display message if data is redirected */
 | 
						|
    if (((struct Globals *)pG)->redirect_data &&
 | 
						|
        !((struct Globals *)pG)->redirect_text)
 | 
						|
        return 0;
 | 
						|
#endif
 | 
						|
 | 
						|
    if (MSG_STDERR(flag) && !((struct Globals *)pG)->tflag)
 | 
						|
        outfp = (FILE *)stderr;
 | 
						|
    else
 | 
						|
        outfp = (FILE *)stdout;
 | 
						|
 | 
						|
#ifdef MPW
 | 
						|
    if (MSG_MNEWLN(flag)) {   /* assumes writable buffer (e.g., slide[]) */
 | 
						|
        *endbuf++ = '\n';     /*  with room for one more char at end of buf */
 | 
						|
        ++size;               /*  (safe assumption:  only used for four */
 | 
						|
    }                         /*  short queries in extract.c and fileio.c) */
 | 
						|
#endif
 | 
						|
 | 
						|
    if (MSG_TNEWLN(flag)) {   /* again assumes writable buffer:  fragile... */
 | 
						|
        if ((!size && !((struct Globals *)pG)->sol) ||
 | 
						|
            (size && (endbuf[-1] != '\n')))
 | 
						|
        {
 | 
						|
            *endbuf++ = '\n';
 | 
						|
            ++size;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    if (MSG_LNEWLN(flag) && !((struct Globals *)pG)->sol) {
 | 
						|
        /* not at start of line:  want newline */
 | 
						|
#ifdef DLL
 | 
						|
        if (!((struct Globals *)pG)->redirect_text) {
 | 
						|
#endif
 | 
						|
            putc('\n', outfp);          /* "more" will be off by one...oops */
 | 
						|
            fflush(outfp);
 | 
						|
            if (MSG_STDERR(flag) && ((struct Globals *)pG)->tflag &&
 | 
						|
                !isatty(1) && isatty(2))
 | 
						|
            {
 | 
						|
                /* error output from testing redirected:  also send to stderr */
 | 
						|
                putc('\n', stderr);
 | 
						|
                fflush(stderr);
 | 
						|
            }
 | 
						|
#ifdef DLL
 | 
						|
        } else
 | 
						|
           REDIRECTC('\n');
 | 
						|
#endif
 | 
						|
        ((struct Globals *)pG)->sol = TRUE;
 | 
						|
    }
 | 
						|
 | 
						|
    /* put zipfile name, filename and/or error/warning keywords here */
 | 
						|
 | 
						|
#ifdef MORE
 | 
						|
    /* room for --More-- and one line of overlap: */
 | 
						|
    ((struct Globals *)pG)->height = SCREENLINES - 2;
 | 
						|
 | 
						|
    if (((struct Globals *)pG)->M_flag
 | 
						|
#ifdef DLL
 | 
						|
         && !((struct Globals *)pG)->redirect_text
 | 
						|
#endif
 | 
						|
                                                 )
 | 
						|
    {
 | 
						|
        while (++p < endbuf) {
 | 
						|
            if (*p == '\n') {
 | 
						|
                ++((struct Globals *)pG)->numlines;
 | 
						|
                if (((struct Globals *)pG)->numlines %
 | 
						|
                    ((struct Globals *)pG)->height == 0L)    /* GRR: fix */
 | 
						|
                {
 | 
						|
                    if ((error = WriteError(q, p-q+1, outfp)) != 0)
 | 
						|
                        return error;
 | 
						|
                    fflush(outfp);
 | 
						|
                    ((struct Globals *)pG)->sol = TRUE;
 | 
						|
                    q = p + 1;
 | 
						|
                    (*((struct Globals *)pG)->mpause)((zvoid *)pG,
 | 
						|
                      LoadFarString(MorePrompt), 1);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } /* end while */
 | 
						|
        size = (ulg)(p - q);   /* remaining text */
 | 
						|
    }
 | 
						|
#endif /* MORE */
 | 
						|
 | 
						|
    if (size) {
 | 
						|
#ifdef DLL
 | 
						|
        if (!((struct Globals *)pG)->redirect_text) {
 | 
						|
#endif
 | 
						|
            if ((error = WriteError(q, size, outfp)) != 0)
 | 
						|
                return error;
 | 
						|
            fflush(outfp);
 | 
						|
            if (MSG_STDERR(flag) && ((struct Globals *)pG)->tflag &&
 | 
						|
                !isatty(1) && isatty(2))
 | 
						|
            {
 | 
						|
                /* error output from testing redirected:  also send to stderr */
 | 
						|
                if ((error = WriteError(q, size, stderr)) != 0)
 | 
						|
                    return error;
 | 
						|
                fflush(stderr);
 | 
						|
            }
 | 
						|
#ifdef DLL
 | 
						|
        } else {                /* GRR:  this is ugly:  hide with macro */
 | 
						|
            if ((error = REDIRECTPRINT(q, size)) != 0)
 | 
						|
                return error;
 | 
						|
        }
 | 
						|
#endif
 | 
						|
        ((struct Globals *)pG)->sol = (endbuf[-1] == '\n');
 | 
						|
    }
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function UzpMessagePrnt() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifdef DLL
 | 
						|
 | 
						|
/*****************************/
 | 
						|
/* Function UzpMessageNull() */  /* convenience routine for no output at all */
 | 
						|
/*****************************/
 | 
						|
 | 
						|
int UZ_EXP UzpMessageNull(pG, buf, size, flag)
 | 
						|
    zvoid *pG;    /* globals struct:  always passed */
 | 
						|
    uch *buf;     /* preformatted string to be printed */
 | 
						|
    ulg size;     /* length of string (may include nulls) */
 | 
						|
    int flag;     /* flag bits */
 | 
						|
{
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function UzpMessageNull() */
 | 
						|
 | 
						|
#endif /* DLL */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/***********************/
 | 
						|
/* Function UzpInput() */   /* GRR:  this is a placeholder for now */
 | 
						|
/***********************/
 | 
						|
 | 
						|
int UZ_EXP UzpInput(pG, buf, size, flag)
 | 
						|
    zvoid *pG;    /* globals struct:  always passed */
 | 
						|
    uch *buf;     /* preformatted string to be printed */
 | 
						|
    int *size;    /* (address of) size of buf and of returned string */
 | 
						|
    int flag;     /* flag bits (bit 0: no echo) */
 | 
						|
{
 | 
						|
    /* tell picky compilers to shut up about "unused variable" warnings */
 | 
						|
    pG = pG; buf = buf; flag = flag;
 | 
						|
 | 
						|
    *size = 0;
 | 
						|
    return 0;
 | 
						|
 | 
						|
} /* end function UzpInput() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#if (!defined(WINDLL) && !defined(MACOS))
 | 
						|
 | 
						|
/***************************/
 | 
						|
/* Function UzpMorePause() */
 | 
						|
/***************************/
 | 
						|
 | 
						|
void UZ_EXP UzpMorePause(pG, prompt, flag)
 | 
						|
    zvoid *pG;            /* globals struct:  always passed */
 | 
						|
    ZCONST char *prompt;  /* "--More--" prompt */
 | 
						|
    int flag;             /* 0 = any char OK; 1 = accept only '\n', ' ', q */
 | 
						|
{
 | 
						|
    uch c;
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Print a prompt and wait for the user to press a key, then erase prompt
 | 
						|
    if possible.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
    if (!((struct Globals *)pG)->sol)
 | 
						|
        fprintf(stderr, "\n");
 | 
						|
    /* numlines may or may not be used: */
 | 
						|
    fprintf(stderr, prompt, ((struct Globals *)pG)->numlines);
 | 
						|
    fflush(stderr);
 | 
						|
    if (flag & 1) {
 | 
						|
        do {
 | 
						|
            c = (uch)FGETCH(0);
 | 
						|
        } while (c != '\r' && c != '\n' && c != ' ' && c != 'q' && c != 'Q');
 | 
						|
    } else
 | 
						|
        c = (uch)FGETCH(0);
 | 
						|
 | 
						|
    /* newline was not echoed, so cover up prompt line */
 | 
						|
    fprintf(stderr, LoadFarString(HidePrompt));
 | 
						|
    fflush(stderr);
 | 
						|
 | 
						|
    if (ToLower(c) == 'q') {
 | 
						|
        DESTROYGLOBALS()
 | 
						|
        EXIT(PK_COOL);
 | 
						|
    }
 | 
						|
 | 
						|
    ((struct Globals *)pG)->sol = TRUE;
 | 
						|
 | 
						|
} /* end function UzpMorePause() */
 | 
						|
 | 
						|
#endif /* !WINDLL && !MACOS */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifndef WINDLL
 | 
						|
 | 
						|
/**************************/
 | 
						|
/* Function UzpPassword() */
 | 
						|
/**************************/
 | 
						|
 | 
						|
int UZ_EXP UzpPassword (pG, rcnt, pwbuf, size, zfn, efn)
 | 
						|
    zvoid *pG;         /* pointer to UnZip's internal global vars */
 | 
						|
    int *rcnt;         /* retry counter */
 | 
						|
    char *pwbuf;       /* buffer for password */
 | 
						|
    int size;          /* size of password buffer */
 | 
						|
    ZCONST char *zfn;  /* name of zip archive */
 | 
						|
    ZCONST char *efn;  /* name of archive entry being processed */
 | 
						|
{
 | 
						|
#if CRYPT
 | 
						|
    int r = IZ_PW_ENTERED;
 | 
						|
    char *m;
 | 
						|
    char *prompt;
 | 
						|
 | 
						|
    /* tell picky compilers to shut up about "unused variable" warnings */
 | 
						|
    pG = pG;
 | 
						|
 | 
						|
    if (*rcnt == 0) {           /* First call for current entry */
 | 
						|
        *rcnt = 2;
 | 
						|
        if ((prompt = (char *)malloc(2*FILNAMSIZ + 15)) != (char *)NULL) {
 | 
						|
            sprintf(prompt, "[%s] %s password: ", zfn, efn);
 | 
						|
            m = prompt;
 | 
						|
        } else
 | 
						|
            m = "Enter password: ";
 | 
						|
    } else {                    /* Retry call, previous password was wrong */
 | 
						|
        (*rcnt)--;
 | 
						|
        prompt = NULL;
 | 
						|
        m = "password incorrect--reenter: ";
 | 
						|
    }
 | 
						|
 | 
						|
    m = getp(__G__ m, pwbuf, size);
 | 
						|
    if (prompt != (char *)NULL) {
 | 
						|
        free(prompt);
 | 
						|
    }
 | 
						|
    if (m == (char *)NULL) {
 | 
						|
        r = IZ_PW_ERROR;
 | 
						|
    }
 | 
						|
    else if (*pwbuf == '\0') {
 | 
						|
        r = IZ_PW_CANCELALL;
 | 
						|
    }
 | 
						|
    return r;
 | 
						|
 | 
						|
#else /* !CRYPT */
 | 
						|
    /* tell picky compilers to shut up about "unused variable" warnings */
 | 
						|
    pG = pG; rcnt = rcnt; pwbuf = pwbuf; size = size; zfn = zfn; efn = efn;
 | 
						|
 | 
						|
    return IZ_PW_ERROR;  /* internal error; function should never get called */
 | 
						|
#endif /* ?CRYPT */
 | 
						|
 | 
						|
} /* end function UzpPassword() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/**********************/
 | 
						|
/* Function handler() */
 | 
						|
/**********************/
 | 
						|
 | 
						|
void handler(signal)   /* upon interrupt, turn on echo and exit cleanly */
 | 
						|
    int signal;
 | 
						|
{
 | 
						|
    GETGLOBALS();
 | 
						|
 | 
						|
#if !(defined(SIGBUS) || defined(SIGSEGV))      /* add a newline if not at */
 | 
						|
    (*G.message)((zvoid *)&G, slide, 0L, 0x41); /*  start of line (to stderr; */
 | 
						|
#endif                                          /*  slide[] should be safe) */
 | 
						|
 | 
						|
    echon();
 | 
						|
 | 
						|
#ifdef SIGBUS
 | 
						|
    if (signal == SIGBUS) {
 | 
						|
        Info(slide, 0x421, ((char *)slide, LoadFarString(ZipfileCorrupt),
 | 
						|
          "bus error"));
 | 
						|
        DESTROYGLOBALS()
 | 
						|
        EXIT(PK_BADERR);
 | 
						|
    }
 | 
						|
#endif /* SIGBUS */
 | 
						|
 | 
						|
#ifdef SIGSEGV
 | 
						|
    if (signal == SIGSEGV) {
 | 
						|
        Info(slide, 0x421, ((char *)slide, LoadFarString(ZipfileCorrupt),
 | 
						|
          "segmentation violation"));
 | 
						|
        DESTROYGLOBALS()
 | 
						|
        EXIT(PK_BADERR);
 | 
						|
    }
 | 
						|
#endif /* SIGSEGV */
 | 
						|
 | 
						|
    /* probably ctrl-C */
 | 
						|
    DESTROYGLOBALS()
 | 
						|
#if defined(AMIGA) && defined(__SASC)
 | 
						|
    _abort();
 | 
						|
#endif
 | 
						|
    EXIT(IZ_CTRLC);       /* was EXIT(0), then EXIT(PK_ERR) */
 | 
						|
}
 | 
						|
 | 
						|
#endif /* !WINDLL */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#if (!defined(VMS) && !defined(OS2) && !defined(CMS_MVS))
 | 
						|
 | 
						|
/* also used in amiga/filedate.c and win32/win32.c */
 | 
						|
ZCONST ush ydays[] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
 | 
						|
 | 
						|
/*******************************/
 | 
						|
/* Function dos_to_unix_time() */   /* only used for freshening/updating */
 | 
						|
/*******************************/
 | 
						|
 | 
						|
time_t dos_to_unix_time(ddate, dtime)
 | 
						|
    unsigned ddate, dtime;
 | 
						|
{
 | 
						|
    time_t m_time;
 | 
						|
    int yr, mo, dy, hh, mm, ss;
 | 
						|
#ifdef TOPS20
 | 
						|
#   define YRBASE  1900
 | 
						|
    struct tmx *tmx;
 | 
						|
    char temp[20];
 | 
						|
#else /* !TOPS20 */
 | 
						|
#   define YRBASE  1970
 | 
						|
    int leap;
 | 
						|
    unsigned days;
 | 
						|
#if (!defined(MACOS) && !defined(RISCOS))
 | 
						|
#ifndef BSD4_4   /* GRR:  change to !defined(MODERN) ? */
 | 
						|
#if (defined(BSD) || defined(MTS) || defined(__GO32__))
 | 
						|
    struct timeb tbp;
 | 
						|
#else /* !(BSD || MTS || __GO32__) */
 | 
						|
#ifdef DECLARE_TIMEZONE
 | 
						|
    extern time_t timezone;
 | 
						|
#endif
 | 
						|
#endif /* ?(BSD || MTS || __GO32__) */
 | 
						|
#endif /* !BSD4_4 */
 | 
						|
#endif /* !MACOS && !RISCOS */
 | 
						|
#endif /* ?TOPS20 */
 | 
						|
 | 
						|
 | 
						|
    /* dissect date */
 | 
						|
    yr = ((ddate >> 9) & 0x7f) + (1980 - YRBASE);
 | 
						|
    mo = ((ddate >> 5) & 0x0f) - 1;
 | 
						|
    dy = (ddate & 0x1f) - 1;
 | 
						|
 | 
						|
    /* dissect time */
 | 
						|
    hh = (dtime >> 11) & 0x1f;
 | 
						|
    mm = (dtime >> 5) & 0x3f;
 | 
						|
    ss = (dtime & 0x1f) * 2;
 | 
						|
 | 
						|
#ifdef TOPS20
 | 
						|
    tmx = (struct tmx *)malloc(sizeof(struct tmx));
 | 
						|
    sprintf (temp, "%02d/%02d/%02d %02d:%02d:%02d", mo+1, dy+1, yr, hh, mm, ss);
 | 
						|
    time_parse(temp, tmx, (char *)0);
 | 
						|
    m_time = time_make(tmx);
 | 
						|
    free(tmx);
 | 
						|
 | 
						|
#else /* !TOPS20 */
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Calculate the number of seconds since the epoch, usually 1 January 1970.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
    /* leap = # of leap yrs from YRBASE up to but not including current year */
 | 
						|
    leap = ((yr + YRBASE - 1) / 4);   /* leap year base factor */
 | 
						|
 | 
						|
    /* calculate days from BASE to this year and add expired days this year */
 | 
						|
    days = (yr * 365) + (leap - 492) + ydays[mo];
 | 
						|
 | 
						|
    /* if year is a leap year and month is after February, add another day */
 | 
						|
    if ((mo > 1) && ((yr+YRBASE)%4 == 0) && ((yr+YRBASE) != 2100))
 | 
						|
        ++days;                 /* OK through 2199 */
 | 
						|
 | 
						|
    /* convert date & time to seconds relative to 00:00:00, 01/01/YRBASE */
 | 
						|
    m_time = (time_t)((long)(days + dy) * 86400L + (long)hh * 3600L +
 | 
						|
                      (long)(mm * 60 + ss));
 | 
						|
      /* - 1;   MS-DOS times always rounded up to nearest even second */
 | 
						|
    TTrace((stderr, "dos_to_unix_time:\n"));
 | 
						|
    TTrace((stderr, "  m_time before timezone = %ld\n", (long)m_time));
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Adjust for local standard timezone offset.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
#if (!defined(MACOS) && !defined(RISCOS) && !defined(QDOS))
 | 
						|
#if (defined(BSD) || defined(MTS) || defined(__GO32__))
 | 
						|
#ifdef BSD4_4
 | 
						|
    m_time -= localtime(&m_time)->tm_gmtoff;    /* sec. EAST of GMT: subtr. */
 | 
						|
#else /* !BSD4_4 */
 | 
						|
    ftime(&tbp);                                /* get `timezone' */
 | 
						|
    m_time += tbp.timezone * 60L;               /* seconds WEST of GMT:  add */
 | 
						|
#endif /* ?BSD4_4 */
 | 
						|
#else /* !(BSD || MTS || __GO32__) */
 | 
						|
#ifdef WIN32
 | 
						|
    {
 | 
						|
        TIME_ZONE_INFORMATION tzinfo;
 | 
						|
        DWORD res;
 | 
						|
 | 
						|
        /* account for timezone differences */
 | 
						|
        res = GetTimeZoneInformation(&tzinfo);
 | 
						|
        if (res != TIME_ZONE_ID_UNKNOWN)
 | 
						|
            m_time += 60*(tzinfo.Bias);
 | 
						|
    }
 | 
						|
#else /* !WIN32 */
 | 
						|
    tzset();                    /* set `timezone' variable */
 | 
						|
#ifndef __BEOS__                /* BeOS DR8 has no timezones... */
 | 
						|
    m_time += timezone;         /* seconds WEST of GMT:  add */
 | 
						|
#endif
 | 
						|
#endif /* ?WIN32 */
 | 
						|
#endif /* ?(BSD || MTS || __GO32__) */
 | 
						|
    TTrace((stderr, "  m_time after timezone =  %ld\n", (long)m_time));
 | 
						|
#endif /* !MACOS && !RISCOS && !QDOS */
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    Adjust for local daylight savings (summer) time.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
#ifndef BSD4_4  /* (DST already added to tm_gmtoff, so skip tm_isdst) */
 | 
						|
    TIMET_TO_NATIVE(m_time)     /* NOP unless MSC 7.0 or Macintosh */
 | 
						|
    if (localtime((time_t *)&m_time)->tm_isdst)
 | 
						|
        m_time -= 60L * 60L;    /* adjust for daylight savings time */
 | 
						|
    NATIVE_TO_TIMET(m_time)     /* NOP unless MSC 7.0 or Macintosh */
 | 
						|
    TTrace((stderr, "  m_time after DST =       %ld\n", (long)m_time));
 | 
						|
#endif /* !BSD4_4 */
 | 
						|
 | 
						|
#endif /* ?TOPS20 */
 | 
						|
 | 
						|
    return m_time;
 | 
						|
 | 
						|
} /* end function dos_to_unix_time() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/******************************/
 | 
						|
/* Function check_for_newer() */  /* used for overwriting/freshening/updating */
 | 
						|
/******************************/
 | 
						|
 | 
						|
int check_for_newer(__G__ filename)  /* return 1 if existing file is newer */
 | 
						|
    __GDEF                           /*  or equal; 0 if older; -1 if doesn't */
 | 
						|
    char *filename;                  /*  exist yet */
 | 
						|
{
 | 
						|
    time_t existing, archive;
 | 
						|
#ifdef USE_EF_UT_TIME
 | 
						|
    iztimes z_utime;
 | 
						|
#endif
 | 
						|
#ifdef AOS_VS
 | 
						|
    long    dmm, ddd, dyy, dhh, dmin, dss;
 | 
						|
 | 
						|
 | 
						|
    dmm = (lrec.last_mod_file_date >> 5) & 0x0f;
 | 
						|
    ddd = lrec.last_mod_file_date & 0x1f;
 | 
						|
    dyy = (lrec.last_mod_file_date >> 9) + 1980;
 | 
						|
    dhh = (lrec.last_mod_file_time >> 11) & 0x1f;
 | 
						|
    dmin = (lrec.last_mod_file_time >> 5) & 0x3f;
 | 
						|
    dss = (lrec.last_mod_file_time & 0x1f) * 2;
 | 
						|
 | 
						|
    /* under AOS/VS, file times can only be set at creation time,
 | 
						|
     * with the info in a special DG format.  Make sure we can create
 | 
						|
     * it here - we delete it later & re-create it, whether or not
 | 
						|
     * it exists now.
 | 
						|
     */
 | 
						|
    if (!zvs_create(filename, (((ulg)dgdate(dmm, ddd, dyy)) << 16) |
 | 
						|
        (dhh*1800L + dmin*30L + dss/2L), -1L, -1L, (char *) -1, -1, -1, -1))
 | 
						|
        return DOES_NOT_EXIST;
 | 
						|
#endif /* AOS_VS */
 | 
						|
 | 
						|
    Trace((stderr, "check_for_newer:  doing stat(%s)\n", filename));
 | 
						|
    if (SSTAT(filename, &G.statbuf)) {
 | 
						|
        Trace((stderr,
 | 
						|
          "check_for_newer:  stat(%s) returns %d:  file does not exist\n",
 | 
						|
          filename, stat(filename, &G.statbuf)));
 | 
						|
        return DOES_NOT_EXIST;
 | 
						|
    }
 | 
						|
    Trace((stderr, "check_for_newer:  stat(%s) returns 0:  file exists\n",
 | 
						|
      filename));
 | 
						|
 | 
						|
    NATIVE_TO_TIMET(G.statbuf.st_mtime)   /* NOP unless MSC 7.0 or Macintosh */
 | 
						|
 | 
						|
#ifdef USE_EF_UT_TIME
 | 
						|
    /* The `Unix extra field mtime' should be used for comparison with the
 | 
						|
     * time stamp of the existing file >>>ONLY<<< when the EF info is also
 | 
						|
     * used to set the modification time of the extracted file.
 | 
						|
     */
 | 
						|
    if (G.extra_field &&
 | 
						|
        (ef_scan_for_izux(G.extra_field, G.lrec.extra_field_length, 0,
 | 
						|
                          &z_utime, NULL) & EB_UT_FL_MTIME)) {
 | 
						|
        TTrace((stderr, "check_for_newer:  using Unix extra field mtime\n"));
 | 
						|
        existing = G.statbuf.st_mtime;
 | 
						|
        archive  = z_utime.mtime;
 | 
						|
    } else {
 | 
						|
        /* round up existing filetime to nearest 2 seconds for comparison */
 | 
						|
        existing = G.statbuf.st_mtime & 1 ? G.statbuf.st_mtime + 1
 | 
						|
                                          : G.statbuf.st_mtime;
 | 
						|
        archive  = dos_to_unix_time(G.lrec.last_mod_file_date,
 | 
						|
                                    G.lrec.last_mod_file_time);
 | 
						|
    }
 | 
						|
#else /* !USE_EF_UT_TIME */
 | 
						|
    /* round up existing filetime to nearest 2 seconds for comparison */
 | 
						|
    existing = G.statbuf.st_mtime & 1 ? G.statbuf.st_mtime + 1
 | 
						|
                                      : G.statbuf.st_mtime;
 | 
						|
    archive  = dos_to_unix_time(G.lrec.last_mod_file_date,
 | 
						|
                                G.lrec.last_mod_file_time);
 | 
						|
#endif /* ?USE_EF_UT_TIME */
 | 
						|
 | 
						|
    TTrace((stderr, "check_for_newer:  existing %ld, archive %ld, e-a %ld\n",
 | 
						|
      existing, archive, existing-archive));
 | 
						|
 | 
						|
    return (existing >= archive);
 | 
						|
 | 
						|
} /* end function check_for_newer() */
 | 
						|
 | 
						|
#endif /* !VMS && !OS2 && !CMS_MVS */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/************************/
 | 
						|
/* Function do_string() */
 | 
						|
/************************/
 | 
						|
 | 
						|
int do_string(__G__ len, option)      /* return PK-type error code */
 | 
						|
    __GDEF
 | 
						|
    unsigned int len;           /* without prototype, ush converted to this */
 | 
						|
    int option;
 | 
						|
{
 | 
						|
    long comment_bytes_left, block_length;
 | 
						|
    int error=PK_OK;
 | 
						|
    ush extra_len;
 | 
						|
#ifdef AMIGA
 | 
						|
    char tmp_fnote[2 * AMIGA_FILENOTELEN];   /* extra room for squozen chars */
 | 
						|
#endif
 | 
						|
 | 
						|
 | 
						|
/*---------------------------------------------------------------------------
 | 
						|
    This function processes arbitrary-length (well, usually) strings.  Four
 | 
						|
    options are allowed:  SKIP, wherein the string is skipped (pretty logical,
 | 
						|
    eh?); DISPLAY, wherein the string is printed to standard output after un-
 | 
						|
    dergoing any necessary or unnecessary character conversions; DS_FN,
 | 
						|
    wherein the string is put into the filename[] array after undergoing ap-
 | 
						|
    propriate conversions (including case-conversion, if that is indicated:
 | 
						|
    see the global variable pInfo->lcflag); and EXTRA_FIELD, wherein the
 | 
						|
    `string' is assumed to be an extra field and is copied to the (freshly
 | 
						|
    malloced) buffer G.extra_field.  The third option should be OK since
 | 
						|
    filename is dimensioned at 1025, but we check anyway.
 | 
						|
 | 
						|
    The string, by the way, is assumed to start at the current file-pointer
 | 
						|
    position; its length is given by len.  So start off by checking length
 | 
						|
    of string:  if zero, we're already done.
 | 
						|
  ---------------------------------------------------------------------------*/
 | 
						|
 | 
						|
    if (!len)
 | 
						|
        return PK_COOL;
 | 
						|
 | 
						|
    switch (option) {
 | 
						|
 | 
						|
    /*
 | 
						|
     * First case:  print string on standard output.  First set loop vari-
 | 
						|
     * ables, then loop through the comment in chunks of OUTBUFSIZ bytes,
 | 
						|
     * converting formats and printing as we go.  The second half of the
 | 
						|
     * loop conditional was added because the file might be truncated, in
 | 
						|
     * which case comment_bytes_left will remain at some non-zero value for
 | 
						|
     * all time.  outbuf and slide are used as scratch buffers because they
 | 
						|
     * are available (we should be either before or in between any file pro-
 | 
						|
     * cessing).
 | 
						|
     */
 | 
						|
 | 
						|
    case DISPLAY:
 | 
						|
    case DISPL_8:
 | 
						|
        comment_bytes_left = len;
 | 
						|
        block_length = OUTBUFSIZ;    /* for the while statement, first time */
 | 
						|
        while (comment_bytes_left > 0 && block_length > 0) {
 | 
						|
            register uch *p = G.outbuf;
 | 
						|
            register uch *q = G.outbuf;
 | 
						|
 | 
						|
            if ((block_length = readbuf(__G__ (char *)G.outbuf,
 | 
						|
                   (unsigned) MIN((long)OUTBUFSIZ, comment_bytes_left))) == 0)
 | 
						|
                return PK_EOF;
 | 
						|
            comment_bytes_left -= block_length;
 | 
						|
 | 
						|
            /* this is why we allocated an extra byte for outbuf:  terminate
 | 
						|
             *  with zero (ASCIIZ) */
 | 
						|
            G.outbuf[(unsigned)block_length] = '\0';
 | 
						|
 | 
						|
            /* remove all ASCII carriage returns from comment before printing
 | 
						|
             * (since used before A_TO_N(), check for CR instead of '\r')
 | 
						|
             */
 | 
						|
            while (*p) {
 | 
						|
                while (*p == CR)
 | 
						|
                    ++p;
 | 
						|
                *q++ = *p++;
 | 
						|
            }
 | 
						|
            /* could check whether (p - outbuf) == block_length here */
 | 
						|
            *q = '\0';
 | 
						|
 | 
						|
            if (option == DISPL_8) {
 | 
						|
                /* translate the text coded in the entry's host-dependent
 | 
						|
                   "extended ASCII" charset into the compiler's (system's)
 | 
						|
                   internal text code page */
 | 
						|
                Ext_ASCII_TO_Native((char *)G.outbuf, G.pInfo->hostnum,
 | 
						|
                                    G.crec.version_made_by[0]);
 | 
						|
#ifdef WINDLL
 | 
						|
                /* translate to ANSI (RTL internal codepage may be OEM) */
 | 
						|
                INTERN_TO_ISO((char *)G.outbuf, (char *)G.outbuf);
 | 
						|
#else /* !WINDLL */
 | 
						|
#ifdef WIN32
 | 
						|
                if ( !IsWinNT() ) {
 | 
						|
                    /* Win95 console uses OEM character coding */
 | 
						|
                    INTERN_TO_OEM((char *)G.outbuf, (char *)G.outbuf);
 | 
						|
                } else {
 | 
						|
                    /* >>>>> this guess has to be checked !!!! <<<<<< */
 | 
						|
                    /* WinNT console uses ISO character coding */
 | 
						|
                    INTERN_TO_ISO((char *)G.outbuf, (char *)G.outbuf);
 | 
						|
                }
 | 
						|
#endif /* WIN32 */
 | 
						|
#endif /* ?WINDLL */
 | 
						|
            } else {
 | 
						|
                A_TO_N(G.outbuf);   /* translate string to native */
 | 
						|
            }
 | 
						|
 | 
						|
#ifdef WINDLL
 | 
						|
            /* ran out of local mem -- had to cheat */
 | 
						|
            win_fprintf(stdout, len, (char *)G.outbuf);
 | 
						|
            win_fprintf(stdout, 2, (char *)"\n\n");
 | 
						|
#else /* !WINDLL */
 | 
						|
#ifdef NATIVE          /* GRR:  can ANSI be used with EBCDIC? */
 | 
						|
            (*G.message)((zvoid *)&G, G.outbuf, (ulg)(q-G.outbuf), 0);
 | 
						|
#else /* ASCII */
 | 
						|
            p = G.outbuf - 1;
 | 
						|
            q = slide;
 | 
						|
            while (*++p) {
 | 
						|
                int pause = FALSE;
 | 
						|
 | 
						|
                if (*p == 0x1B) {          /* ASCII escape char */
 | 
						|
                    *q++ = '^';
 | 
						|
                    *q++ = '[';
 | 
						|
                } else if (*p == 0x13) {   /* ASCII ^S (pause) */
 | 
						|
                    pause = TRUE;
 | 
						|
                    if (p[1] == 0x0a)      /* ASCII LF */
 | 
						|
                        *q++ = *++p;
 | 
						|
                    else if (p[1] == 0x0d && p[2] == 0x0a) {  /* ASCII CR LF */
 | 
						|
                        *q++ = *++p;
 | 
						|
                        *q++ = *++p;
 | 
						|
                    }
 | 
						|
                } else
 | 
						|
                    *q++ = *p;
 | 
						|
                if ((unsigned)(q-slide) > WSIZE-3 || pause) {   /* flush */
 | 
						|
                    (*G.message)((zvoid *)&G, slide, (ulg)(q-slide), 0);
 | 
						|
                    q = slide;
 | 
						|
                    if (pause && G.extract_flag) /* don't pause for list/test */
 | 
						|
                        (*G.mpause)((zvoid *)&G, LoadFarString(QuitPrompt), 0);
 | 
						|
                }
 | 
						|
            }
 | 
						|
            (*G.message)((zvoid *)&G, slide, (ulg)(q-slide), 0);
 | 
						|
#endif /* ?NATIVE */
 | 
						|
#endif /* ?WINDLL */
 | 
						|
        }
 | 
						|
        /* add '\n' if not at start of line */
 | 
						|
        (*G.message)((zvoid *)&G, slide, 0L, 0x40);
 | 
						|
        break;
 | 
						|
 | 
						|
    /*
 | 
						|
     * Second case:  read string into filename[] array.  The filename should
 | 
						|
     * never ever be longer than FILNAMSIZ-1 (1024), but for now we'll check,
 | 
						|
     * just to be sure.
 | 
						|
     */
 | 
						|
 | 
						|
    case DS_FN:
 | 
						|
        extra_len = 0;
 | 
						|
        if (len >= FILNAMSIZ) {
 | 
						|
            Info(slide, 0x401, ((char *)slide,
 | 
						|
              LoadFarString(FilenameTooLongTrunc)));
 | 
						|
            error = PK_WARN;
 | 
						|
            extra_len = (ush)(len - FILNAMSIZ + 1);
 | 
						|
            len = FILNAMSIZ - 1;
 | 
						|
        }
 | 
						|
        if (readbuf(__G__  G.filename, len) == 0)
 | 
						|
            return PK_EOF;
 | 
						|
        G.filename[len] = '\0';   /* terminate w/zero:  ASCIIZ */
 | 
						|
 | 
						|
        /* translate the Zip entry filename coded in host-dependent "extended
 | 
						|
           ASCII" into the compiler's (system's) internal text code page */
 | 
						|
        Ext_ASCII_TO_Native(G.filename, G.pInfo->hostnum,
 | 
						|
                            G.crec.version_made_by[0]);
 | 
						|
 | 
						|
        if (G.pInfo->lcflag)      /* replace with lowercase filename */
 | 
						|
            TOLOWER(G.filename, G.filename);
 | 
						|
 | 
						|
        if (G.pInfo->vollabel && len > 8 && G.filename[8] == '.') {
 | 
						|
            char *p = G.filename+8;
 | 
						|
            while (*p++)
 | 
						|
                p[-1] = *p;  /* disk label, and 8th char is dot:  remove dot */
 | 
						|
        }
 | 
						|
 | 
						|
        if (!extra_len)         /* we're done here */
 | 
						|
            break;
 | 
						|
 | 
						|
        /*
 | 
						|
         * We truncated the filename, so print what's left and then fall
 | 
						|
         * through to the SKIP routine.
 | 
						|
         */
 | 
						|
        Info(slide, 0x401, ((char *)slide, "[ %s ]\n", FnFilter1(G.filename)));
 | 
						|
        len = extra_len;
 | 
						|
        /*  FALL THROUGH...  */
 | 
						|
 | 
						|
    /*
 | 
						|
     * Third case:  skip string, adjusting readbuf's internal variables
 | 
						|
     * as necessary (and possibly skipping to and reading a new block of
 | 
						|
     * data).
 | 
						|
     */
 | 
						|
 | 
						|
    case SKIP:
 | 
						|
        /* cur_zipfile_bufstart already takes account of extra_bytes, so don't
 | 
						|
         * correct for it twice: */
 | 
						|
        ZLSEEK(G.cur_zipfile_bufstart - G.extra_bytes +
 | 
						|
               (G.inptr-G.inbuf) + len)
 | 
						|
        break;
 | 
						|
 | 
						|
    /*
 | 
						|
     * Fourth case:  assume we're at the start of an "extra field"; malloc
 | 
						|
     * storage for it and read data into the allocated space.
 | 
						|
     */
 | 
						|
 | 
						|
    case EXTRA_FIELD:
 | 
						|
        if (G.extra_field != (uch *)NULL)
 | 
						|
            free(G.extra_field);
 | 
						|
        if ((G.extra_field = (uch *)malloc(len)) == (uch *)NULL) {
 | 
						|
            Info(slide, 0x401, ((char *)slide, LoadFarString(ExtraFieldTooLong),
 | 
						|
              len));
 | 
						|
            /* cur_zipfile_bufstart already takes account of extra_bytes,
 | 
						|
             * so don't correct for it twice: */
 | 
						|
            ZLSEEK(G.cur_zipfile_bufstart - G.extra_bytes +
 | 
						|
                   (G.inptr-G.inbuf) + len)
 | 
						|
        } else
 | 
						|
            if (readbuf(__G__  (char *)G.extra_field, len) == 0)
 | 
						|
                return PK_EOF;
 | 
						|
        break;
 | 
						|
 | 
						|
#ifdef AMIGA
 | 
						|
    /*
 | 
						|
     * Fifth case, for the Amiga only:  take the comment that would ordinarily
 | 
						|
     * be skipped over, and turn it into a 79 character string that will be
 | 
						|
     * attached to the file as a "filenote" after it is extracted.
 | 
						|
     */
 | 
						|
 | 
						|
    case FILENOTE:
 | 
						|
        if ((extra_len = readbuf(__G__ tmp_fnote, (unsigned)
 | 
						|
                                 MIN(len, 2 * AMIGA_FILENOTELEN - 1))) == 0)
 | 
						|
            return PK_EOF;
 | 
						|
        if ((len -= extra_len) > 0)     /* treat remainder as in case SKIP: */
 | 
						|
            ZLSEEK(G.cur_zipfile_bufstart - G.extra_bytes
 | 
						|
                   + (G.inptr - G.inbuf) + len)
 | 
						|
        /* convert multi-line text into single line with no ctl-chars: */
 | 
						|
        tmp_fnote[extra_len] = '\0';
 | 
						|
        while ((short int) --extra_len >= 0)
 | 
						|
            if ((unsigned) tmp_fnote[extra_len] < ' ')
 | 
						|
                if (tmp_fnote[extra_len+1] == ' ')     /* no excess */
 | 
						|
                    strcpy(tmp_fnote+extra_len, tmp_fnote+extra_len+1);
 | 
						|
                else
 | 
						|
                    tmp_fnote[extra_len] = ' ';
 | 
						|
        tmp_fnote[AMIGA_FILENOTELEN - 1] = '\0';
 | 
						|
        if (G.filenotes[G.filenote_slot])
 | 
						|
            free(G.filenotes[G.filenote_slot]);     /* should not happen */
 | 
						|
        G.filenotes[G.filenote_slot] = NULL;
 | 
						|
        if (tmp_fnote[0]) {
 | 
						|
            if (!(G.filenotes[G.filenote_slot] = malloc(strlen(tmp_fnote)+1)))
 | 
						|
                return PK_MEM;
 | 
						|
            strcpy(G.filenotes[G.filenote_slot], tmp_fnote);
 | 
						|
        }
 | 
						|
        break;
 | 
						|
#endif /* AMIGA */
 | 
						|
 | 
						|
    } /* end switch (option) */
 | 
						|
 | 
						|
    return error;
 | 
						|
 | 
						|
} /* end function do_string() */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/***********************/
 | 
						|
/* Function makeword() */
 | 
						|
/***********************/
 | 
						|
 | 
						|
ush makeword(b)
 | 
						|
    uch *b;
 | 
						|
{
 | 
						|
    /*
 | 
						|
     * Convert Intel style 'short' integer to non-Intel non-16-bit
 | 
						|
     * host format.  This routine also takes care of byte-ordering.
 | 
						|
     */
 | 
						|
    return (ush)((b[1] << 8) | b[0]);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/***********************/
 | 
						|
/* Function makelong() */
 | 
						|
/***********************/
 | 
						|
 | 
						|
ulg makelong(sig)
 | 
						|
    uch *sig;
 | 
						|
{
 | 
						|
    /*
 | 
						|
     * Convert intel style 'long' variable to non-Intel non-16-bit
 | 
						|
     * host format.  This routine also takes care of byte-ordering.
 | 
						|
     */
 | 
						|
    return (((ulg)sig[3]) << 24)
 | 
						|
        + (((ulg)sig[2]) << 16)
 | 
						|
        + (((ulg)sig[1]) << 8)
 | 
						|
        + ((ulg)sig[0]);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#if CRYPT
 | 
						|
 | 
						|
#ifdef NEED_STR2ISO
 | 
						|
/**********************/
 | 
						|
/* Function str2iso() */
 | 
						|
/**********************/
 | 
						|
 | 
						|
char *str2iso(dst, src)
 | 
						|
    char *dst;                          /* destination buffer */
 | 
						|
    register ZCONST char *src;          /* source string */
 | 
						|
{
 | 
						|
#ifdef INTERN_TO_ISO
 | 
						|
    INTERN_TO_ISO(src, dst);
 | 
						|
#else
 | 
						|
    register uch c;
 | 
						|
    register char *dstp = dst;
 | 
						|
 | 
						|
    do {
 | 
						|
        c = (uch)foreign(*src++);
 | 
						|
        *dstp++ = (char)ASCII2ISO(c);
 | 
						|
    } while (c != '\0');
 | 
						|
#endif
 | 
						|
 | 
						|
    return dst;
 | 
						|
}
 | 
						|
#endif /* NEED_STR2ISO */
 | 
						|
 | 
						|
 | 
						|
#ifdef NEED_STR2OEM
 | 
						|
/**********************/
 | 
						|
/* Function str2oem() */
 | 
						|
/**********************/
 | 
						|
 | 
						|
char *str2oem(dst, src)
 | 
						|
    char *dst;                          /* destination buffer */
 | 
						|
    register ZCONST char *src;          /* source string */
 | 
						|
{
 | 
						|
#ifdef INTERN_TO_OEM
 | 
						|
    INTERN_TO_OEM(src, dst);
 | 
						|
#else
 | 
						|
    register uch c;
 | 
						|
    register char *dstp = dst;
 | 
						|
 | 
						|
    do {
 | 
						|
        c = (uch)foreign(*src++);
 | 
						|
        *dstp++ = (char)ASCII2OEM(c);
 | 
						|
    } while (c != '\0');
 | 
						|
#endif
 | 
						|
 | 
						|
    return dst;
 | 
						|
}
 | 
						|
#endif /* NEED_STR2OEM */
 | 
						|
 | 
						|
#endif /* CRYPT */
 | 
						|
 | 
						|
 | 
						|
#ifdef ZMEM  /* memset/memcpy for systems without either them or bzero/bcopy */
 | 
						|
             /* (no known systems as of 960211) */
 | 
						|
 | 
						|
/*********************/
 | 
						|
/* Function memset() */
 | 
						|
/*********************/
 | 
						|
 | 
						|
zvoid *memset(buf, init, len)
 | 
						|
    register zvoid *buf;        /* buffer location */
 | 
						|
    register int init;          /* initializer character */
 | 
						|
    register unsigned int len;  /* length of the buffer */
 | 
						|
{
 | 
						|
    zvoid *start;
 | 
						|
 | 
						|
    start = buf;
 | 
						|
    while (len--)
 | 
						|
        *((char *)buf++) = (char)init;
 | 
						|
    return start;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/*********************/
 | 
						|
/* Function memcpy() */
 | 
						|
/*********************/
 | 
						|
 | 
						|
zvoid *memcpy(dst, src, len)
 | 
						|
    register zvoid *dst;
 | 
						|
    register ZCONST zvoid *src;
 | 
						|
    register unsigned int len;
 | 
						|
{
 | 
						|
    zvoid *start;
 | 
						|
 | 
						|
    start = dst;
 | 
						|
    while (len-- > 0)
 | 
						|
        *((char *)dst)++ = *((char *)src)++;
 | 
						|
    return start;
 | 
						|
}
 | 
						|
 | 
						|
#endif /* ZMEM */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/************************/
 | 
						|
/* Function zstrnicmp() */
 | 
						|
/************************/
 | 
						|
 | 
						|
int zstrnicmp(s1, s2, n)
 | 
						|
    register ZCONST char *s1, *s2;
 | 
						|
    register unsigned n;
 | 
						|
{
 | 
						|
    for (; n > 0;  --n, ++s1, ++s2) {
 | 
						|
 | 
						|
        if (ToLower(*s1) != ToLower(*s2))
 | 
						|
            /* test includes early termination of one string */
 | 
						|
            return (ToLower(*s1) < ToLower(*s2))? -1 : 1;
 | 
						|
 | 
						|
        if (*s1 == '\0')   /* both strings terminate early */
 | 
						|
            return 0;
 | 
						|
    }
 | 
						|
    return 0;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifdef REGULUS  /* returns the inode number on success(!)...argh argh argh */
 | 
						|
#  undef stat
 | 
						|
 | 
						|
/********************/
 | 
						|
/* Function zstat() */
 | 
						|
/********************/
 | 
						|
 | 
						|
int zstat(p, s)
 | 
						|
    char *p;
 | 
						|
    struct stat *s;
 | 
						|
{
 | 
						|
    return (stat(p,s) >= 0? 0 : (-1));
 | 
						|
}
 | 
						|
 | 
						|
#endif /* REGULUS */
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#ifdef SMALL_MEM
 | 
						|
 | 
						|
/*******************************/
 | 
						|
/*  Function fLoadFarString()  */   /* (and friends...) */
 | 
						|
/*******************************/
 | 
						|
 | 
						|
char *fLoadFarString(__GPRO__ const char Far *sz)
 | 
						|
{
 | 
						|
    (void)zfstrcpy(G.rgchBigBuffer, sz);
 | 
						|
    return G.rgchBigBuffer;
 | 
						|
}
 | 
						|
 | 
						|
char *fLoadFarStringSmall(__GPRO__ const char Far *sz)
 | 
						|
{
 | 
						|
    (void)zfstrcpy(G.rgchSmallBuffer, sz);
 | 
						|
    return G.rgchSmallBuffer;
 | 
						|
}
 | 
						|
 | 
						|
char *fLoadFarStringSmall2(__GPRO__ const char Far *sz)
 | 
						|
{
 | 
						|
    (void)zfstrcpy(G.rgchSmallBuffer2, sz);
 | 
						|
    return G.rgchSmallBuffer2;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
 | 
						|
#if (!defined(_MSC_VER) || (_MSC_VER < 600))
 | 
						|
/*************************/
 | 
						|
/*  Function zfstrcpy()  */   /* portable clone of _fstrcpy() */
 | 
						|
/*************************/
 | 
						|
 | 
						|
char Far * Far zfstrcpy(char Far *s1, const char Far *s2)
 | 
						|
{
 | 
						|
    char Far *p = s1;
 | 
						|
 | 
						|
    while ((*s1++ = *s2++) != '\0');
 | 
						|
    return p;
 | 
						|
}
 | 
						|
#endif /* !_MSC_VER || (_MSC_VER < 600) */
 | 
						|
 | 
						|
#endif /* SMALL_MEM */
 |