1131 lines
36 KiB
C
1131 lines
36 KiB
C
/*
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Copyright (c) 1990-2007 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2000-Apr-09 or later
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(the contents of which are also included in unzip.h) for terms of use.
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If, for some reason, these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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/*---------------------------------------------------------------------------
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qdos.c
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QDOS-specific routines for use with Info-ZIP's UnZip 5.3 and later.
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Contains: Qstrfix()
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QFilename()
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QMatch()
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chowner()
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Qgetch()
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QReturn()
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LastDir()
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screensize()
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do_wild() <-- generic enough to put in file_io.c?
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mapattr()
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mapname()
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checkdir()
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qfix()
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close_outfile()
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stamp_file()
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getp()
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version()
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---------------------------------------------------------------------------*/
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#define UNZIP_INTERNAL
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#include "unzip.h"
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#include "crypt.h"
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#include "ttyio.h"
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#include <dirent.h>
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#include "izqdos.h"
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#include "unzvers.h"
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#ifndef SFX
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char _prog_name[] = "UnZip";
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#else
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char _prog_name[] = "??Special Flag for unzipsfx hack ??";
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#endif
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/* sorrid hack at request of GRR follows; hope the compiler stays kind to us */
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char _version[] = {UZ_MAJORVER+'0','.',UZ_MINORVER+'0',UZ_PATCHLEVEL+'0'};
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char _extra[] = " " UZ_BETALEVEL;
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char _copyright[] = "(c) Info-ZIP Group";
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char * _endmsg = NULL;
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long _stack = 16*1024; /* huge stack (for qdos) */
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extern void consetup_title(chanid_t,struct WINDOWDEF *);
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void (*_consetup)(chanid_t,struct WINDOWDEF *) = consetup_title;
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struct WINDOWDEF _condetails =
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{
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2,
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1,
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0,
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7,
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500,
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220,
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2,
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30
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};
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static jobid_t chowner(chanid_t chan)
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{
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extern char *_sys_var;
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char *scht;
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long *cdb;
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long jid;
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scht = *((char **)(_sys_var + 0x78));
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cdb = *(long **)((long *)scht + (chan & 0xffff));
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jid = *(cdb + 2);
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return jid;
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}
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int QReturn(int err)
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{
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jobid_t me,you;
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me = getpid();
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you = chowner(getchid(0));
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if((me == you) && ((qlflag & 4) == 0))
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{
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if(isatty(0) && isatty(2) && qlwait)
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{
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char c = 0;
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fputs("Press a key to exit", stderr);
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if((io_fbyte(getchid(0), qlwait, &c) == 0) && c == 27)
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{
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io_fbyte(getchid(0), -1, &c);
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}
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}
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}
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if(err > 0) err = -err; /* We like -ve err nos (exclusively, alas) */
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exit(err);
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}
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#ifndef FUNZIP
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static int created_dir; /* used in mapname(), checkdir() */
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static int renamed_fullpath; /* ditto */
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char *Qstrfix (char *p)
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{
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char *q;
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for (q = p; (q = strstr(q, ".zip"));)
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{
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*q = '_';
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q += 4;
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}
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return p;
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}
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void QFilename(char *f)
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{
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char *o,*p,*q = strdup(f);
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p = q;
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if(*q == '.' && *(q+1) == '/') q += 2;
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o = q;
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for(;*q;q++)
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{
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if(*q == '/') *q = '_';
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if((qlflag & 1) == 0)
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{
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if(*q == '.') *q = '_';
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}
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}
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strcpy(f,o);
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free(p);
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}
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int QMatch(uch c1, uch c2)
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{
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int m =0;
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if(c1 != c2)
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{
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if(c1 == '_' && (c2 == '.' || c2 == '/'))
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{
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m = 1;
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}
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}
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else
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{
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m = 1;
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}
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return m;
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}
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int Qgetch(void)
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{
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char ch;
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if(io_fbyte(getchid(0), -1, &ch) < 0)
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{
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return EOF;
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}
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else
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{
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return (int) ch;
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}
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}
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int screensize(int *tt_rows, int *tt_cols)
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{
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QLRECT_t rect;
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if(0 == sd_chenq(getchid(1), -1, &rect))
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{
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if(tt_cols)
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*tt_cols = rect.q_width;
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if(tt_rows)
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*tt_rows = rect.q_height;
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}
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else
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{
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if(tt_cols)
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*tt_cols = 80;
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if(tt_rows)
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*tt_rows = 24;
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}
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return 0;
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}
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#ifndef SFX
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char *LastDir(char *ws)
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{
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char *p;
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char *q = ws;
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struct stat s;
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for(p = ws; *p; p++)
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{
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if(*p == '_')
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{
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char c;
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p++;
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c = *p;
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*p = 0;
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if(stat(ws, &s) == 0 && S_ISDIR(s.st_mode))
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{
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q = p;
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}
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*p = c;
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}
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}
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return q;
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}
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/**********************/
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/* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */
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/**********************/
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char *do_wild(__G__ wildspec)
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__GDEF
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ZCONST char *wildspec; /* only used first time on a given dir */
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{
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static DIR *wild_dir = (DIR *)NULL;
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static ZCONST char *wildname;
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static char *dirname, matchname[FILNAMSIZ];
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static int notfirstcall=FALSE, have_dirname, dirnamelen;
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struct dirent *file;
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char basedir[40];
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/* Even when we're just returning wildspec, we *always* do so in
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* matchname[]--calling routine is allowed to append four characters
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* to the returned string, and wildspec may be a pointer to argv[].
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*/
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if (!notfirstcall) { /* first call: must initialize everything */
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char *ws = NULL, *us = NULL;
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notfirstcall = TRUE;
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/* break the wildspec into a directory part and a wildcard filename */
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ws = (char *) iswild(wildspec);
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if(ws == NULL)
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{
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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return matchname;
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}
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us = LastDir(wildspec);
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if(us == wildspec)
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{
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dirname = basedir;
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getcwd(basedir, sizeof(basedir)-1);
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dirnamelen = strlen(basedir);
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have_dirname = FALSE;
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wildname = wildspec;
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} else {
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wildname = us; /* point at character after '/' */
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dirnamelen = wildname - wildspec;
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if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) {
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Info(slide, 0x201, ((char *)slide,
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"warning: cannot allocate wildcard buffers\n"));
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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return matchname; /* but maybe filespec was not a wildcard */
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}
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strncpy(dirname, wildspec, dirnamelen);
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dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
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have_dirname = TRUE;
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}
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if ((wild_dir = opendir(dirname)) != (DIR *)NULL) {
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while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
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if (match(file->d_name, wildname, 0 WISEP)) { /* 0=case sens.*/
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if (have_dirname) {
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strcpy(matchname, dirname);
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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}
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/* if we get to here directory is exhausted, so close it */
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closedir(wild_dir);
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wild_dir = (DIR *)NULL;
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}
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/* return the raw wildspec in case that works (e.g., directory not
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* searchable, but filespec was not wild and file is readable) */
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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return matchname;
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}
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/* last time through, might have failed opendir but returned raw wildspec */
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if (wild_dir == (DIR *)NULL) {
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notfirstcall = FALSE; /* nothing left to try--reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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}
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/* If we've gotten this far, we've read and matched at least one entry
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* successfully (in a previous call), so dirname has been copied into
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* matchname already.
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*/
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while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
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if (match(file->d_name, wildname, 0 WISEP)) { /* 0 == case sens. */
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if (have_dirname) {
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/* strcpy(matchname, dirname); */
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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}
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closedir(wild_dir); /* have read at least one entry; nothing left */
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wild_dir = (DIR *)NULL;
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notfirstcall = FALSE; /* reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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} /* end function do_wild() */
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#endif /* !SFX */
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/**********************/
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/* Function mapattr() */
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/**********************/
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int mapattr(__G)
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__GDEF
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{
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ulg tmp = G.crec.external_file_attributes;
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switch (G.pInfo->hostnum) {
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case AMIGA_:
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tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */
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G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp);
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break;
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case THEOS_:
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tmp &= 0xF1FFFFFFL;
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if ((tmp & 0xF0000000L) != 0x40000000L)
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tmp &= 0x01FFFFFFL; /* not a dir, mask all ftype bits */
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else
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tmp &= 0x41FFFFFFL; /* leave directory bit as set */
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/* fall through! */
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case QDOS_:
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case UNIX_:
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case VMS_:
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case ACORN_:
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case ATARI_:
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case ATHEOS_:
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case BEOS_:
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case TANDEM_:
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G.pInfo->file_attr = (unsigned)(tmp >> 16);
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if (G.pInfo->file_attr != 0 || !G.extra_field) {
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return 0;
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} else {
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/* Some (non-Info-ZIP) implementations of Zip for Unix and
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VMS (and probably others ??) leave 0 in the upper 16-bit
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part of the external_file_attributes field. Instead, they
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store file permission attributes in some extra field.
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As a work-around, we search for the presence of one of
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these extra fields and fall back to the MSDOS compatible
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part of external_file_attributes if one of the known
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e.f. types has been detected.
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Later, we might implement extraction of the permission
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bits from the VMS extra field. But for now, the work-around
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should be sufficient to provide "readable" extracted files.
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(For ASI Unix e.f., an experimental remap of the e.f.
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mode value IS already provided!)
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*/
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ush ebID;
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unsigned ebLen;
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uch *ef = G.extra_field;
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unsigned ef_len = G.crec.extra_field_length;
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int r = FALSE;
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while (!r && ef_len >= EB_HEADSIZE) {
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ebID = makeword(ef);
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ebLen = (unsigned)makeword(ef+EB_LEN);
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if (ebLen > (ef_len - EB_HEADSIZE))
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/* discoverd some e.f. inconsistency! */
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break;
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switch (ebID) {
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case EF_ASIUNIX:
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if (ebLen >= (EB_ASI_MODE+2)) {
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G.pInfo->file_attr =
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(unsigned)makeword(ef+(EB_HEADSIZE+EB_ASI_MODE));
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/* force stop of loop: */
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ef_len = (ebLen + EB_HEADSIZE);
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break;
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}
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/* else: fall through! */
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case EF_PKVMS:
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/* "found nondecypherable e.f. with perm. attr" */
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r = TRUE;
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default:
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break;
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}
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ef_len -= (ebLen + EB_HEADSIZE);
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ef += (ebLen + EB_HEADSIZE);
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}
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if (!r)
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return 0;
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}
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/* fall through! */
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/* all remaining cases: expand MSDOS read-only bit into write perms */
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case FS_FAT_:
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/* PKWARE's PKZip for Unix marks entries as FS_FAT_, but stores the
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* Unix attributes in the upper 16 bits of the external attributes
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* field, just like Info-ZIP's Zip for Unix. We try to use that
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* value, after a check for consistency with the MSDOS attribute
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* bits (see below).
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*/
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G.pInfo->file_attr = (unsigned)(tmp >> 16);
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/* fall through! */
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case FS_HPFS_:
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case FS_NTFS_:
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case MAC_:
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case TOPS20_:
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default:
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/* Ensure that DOS subdir bit is set when the entry's name ends
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* in a '/'. Some third-party Zip programs fail to set the subdir
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* bit for directory entries.
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*/
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if ((tmp & 0x10) == 0) {
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extent fnlen = strlen(G.filename);
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if (fnlen > 0 && G.filename[fnlen-1] == '/')
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tmp |= 0x10;
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}
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/* read-only bit --> write perms; subdir bit --> dir exec bit */
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tmp = !(tmp & 1) << 1 | (tmp & 0x10) >> 4;
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if ((G.pInfo->file_attr & 0700) == (unsigned)(0400 | tmp<<6))
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/* keep previous G.pInfo->file_attr setting, when its "owner"
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* part appears to be consistent with DOS attribute flags!
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*/
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return 0;
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G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp);
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break;
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} /* end switch (host-OS-created-by) */
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/* for originating systems with no concept of "group," "other," "system": */
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umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */
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G.pInfo->file_attr &= ~tmp;
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return 0;
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} /* end function mapattr() */
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|
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/************************/
|
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/* Function mapname() */
|
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/************************/
|
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int mapname(__G__ renamed)
|
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__GDEF
|
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int renamed;
|
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/*
|
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* returns:
|
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* MPN_OK - no problem detected
|
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* MPN_INF_TRUNC - caution (truncated filename)
|
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* MPN_INF_SKIP - info "skip entry" (dir doesn't exist)
|
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* MPN_ERR_SKIP - error -> skip entry
|
|
* MPN_ERR_TOOLONG - error -> path is too long
|
|
* MPN_NOMEM - error (memory allocation failed) -> skip entry
|
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* [also MPN_VOL_LABEL, MPN_CREATED_DIR]
|
|
*/
|
|
{
|
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char pathcomp[FILNAMSIZ]; /* path-component buffer */
|
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char *pp, *cp=(char *)NULL; /* character pointers */
|
|
char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */
|
|
int killed_ddot = FALSE; /* is set when skipping "../" pathcomp */
|
|
int error = MPN_OK;
|
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register unsigned workch; /* hold the character being tested */
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|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Initialize various pointers and counters and stuff.
|
|
---------------------------------------------------------------------------*/
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|
|
|
if (G.pInfo->vollabel)
|
|
return MPN_VOL_LABEL; /* can't set disk volume labels in SMS/QDOS */
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|
|
/* can create path as long as not just freshening, or if user told us */
|
|
G.create_dirs = (!uO.fflag || renamed);
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|
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created_dir = FALSE; /* not yet */
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|
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/* user gave full pathname: don't prepend rootpath */
|
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renamed_fullpath = (renamed && (*G.filename == '/'));
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|
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if (checkdir(__G__ (char *)NULL, INIT) == MPN_NOMEM)
|
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return MPN_NOMEM; /* initialize path buffer, unless no memory */
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|
|
*pathcomp = '\0'; /* initialize translation buffer */
|
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pp = pathcomp; /* point to translation buffer */
|
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if (uO.jflag) /* junking directories */
|
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cp = (char *)strrchr(G.filename, '/');
|
|
if (cp == (char *)NULL) /* no '/' or not junking dirs */
|
|
cp = G.filename; /* point to internal zipfile-member pathname */
|
|
else
|
|
++cp; /* point to start of last component of path */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Begin main loop through characters in filename.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
while ((workch = (uch)*cp++) != 0) {
|
|
|
|
switch (workch) {
|
|
case '/': /* can assume -j flag not given */
|
|
*pp = '\0';
|
|
if (((error = checkdir(__G__ pathcomp, APPEND_DIR))
|
|
& MPN_MASK) > MPN_INF_TRUNC)
|
|
return error;
|
|
pp = pathcomp; /* reset conversion buffer for next piece */
|
|
lastsemi = (char *)NULL; /* leave direct. semi-colons alone */
|
|
break;
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|
|
case '.':
|
|
if (pp == pathcomp) { /* nothing appended yet... */
|
|
if (*cp == '/') { /* don't bother appending "./" to */
|
|
++cp; /* the path: skip behind the '/' */
|
|
break;
|
|
} else if (!uO.ddotflag && *cp == '.' && cp[1] == '/') {
|
|
/* "../" dir traversal detected */
|
|
cp += 2; /* skip over behind the '/' */
|
|
killed_ddot = TRUE; /* set "show message" flag */
|
|
break;
|
|
}
|
|
}
|
|
*pp++ = (((qlflag & 1) == 0) ? '_' : '.');
|
|
break;
|
|
|
|
case ';': /* VMS version (or DEC-20 attrib?) */
|
|
lastsemi = pp;
|
|
*pp++ = ';'; /* keep for now; remove VMS ";##" */
|
|
break; /* later, if requested */
|
|
|
|
default:
|
|
/* allow European characters in filenames: */
|
|
if (isprint(workch) || (128 <= workch && workch <= 254))
|
|
*pp++ = (char)workch;
|
|
} /* end switch */
|
|
|
|
} /* end while loop */
|
|
|
|
/* Show warning when stripping insecure "parent dir" path components */
|
|
if (killed_ddot && QCOND2) {
|
|
Info(slide, 0, ((char *)slide,
|
|
"warning: skipped \"../\" path component(s) in %s\n",
|
|
FnFilter1(G.filename)));
|
|
if (!(error & ~MPN_MASK))
|
|
error = (error & MPN_MASK) | PK_WARN;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Report if directory was created (and no file to create: filename ended
|
|
in '/'), check name to be sure it exists, and combine path and name be-
|
|
fore exiting.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (G.filename[strlen(G.filename) - 1] == '/') {
|
|
G.filename[strlen(G.filename) - 1] = '_';
|
|
checkdir(__G__ G.filename, GETPATH);
|
|
if (created_dir) {
|
|
if (QCOND2) {
|
|
Info(slide, 0, ((char *)slide, " creating: %s\n",
|
|
FnFilter1(G.filename)));
|
|
}
|
|
/* set dir time (note trailing '/') */
|
|
return (error & ~MPN_MASK) | MPN_CREATED_DIR;
|
|
}
|
|
/* dir existed already; don't look for data to extract */
|
|
return (error & ~MPN_MASK) | MPN_INF_SKIP;
|
|
}
|
|
|
|
*pp = '\0'; /* done with pathcomp: terminate it */
|
|
|
|
/* if not saving them, remove VMS version numbers (appended ";###") */
|
|
if (!uO.V_flag && lastsemi) {
|
|
pp = lastsemi + 1;
|
|
while (isdigit((uch)(*pp)))
|
|
++pp;
|
|
if (*pp == '\0') /* only digits between ';' and end: nuke */
|
|
*lastsemi = '\0';
|
|
}
|
|
|
|
if (*pathcomp == '\0') {
|
|
Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n",
|
|
FnFilter1(G.filename)));
|
|
return (error & ~MPN_MASK) | MPN_ERR_SKIP;
|
|
}
|
|
|
|
checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
|
|
checkdir(__G__ G.filename, GETPATH);
|
|
|
|
return error;
|
|
|
|
} /* end function mapname() */
|
|
|
|
|
|
|
|
|
|
/***********************/
|
|
/* Function checkdir() */
|
|
/***********************/
|
|
|
|
int checkdir(__G__ pathcomp, flag)
|
|
__GDEF
|
|
char *pathcomp;
|
|
int flag;
|
|
/*
|
|
* returns:
|
|
* MPN_OK - no problem detected
|
|
* MPN_INF_TRUNC - (on APPEND_NAME) truncated filename
|
|
* MPN_INF_SKIP - path doesn't exist, not allowed to create
|
|
* MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path
|
|
* exists and is not a directory, but is supposed to be
|
|
* MPN_ERR_TOOLONG - path is too long
|
|
* MPN_NOMEM - can't allocate memory for filename buffers
|
|
*/
|
|
{
|
|
static int rootlen = 0; /* length of rootpath */
|
|
static char *rootpath; /* user's "extract-to" directory */
|
|
static char *buildpath; /* full path (so far) to extracted file */
|
|
static char *end; /* pointer to end of buildpath ('\0') */
|
|
|
|
# define FN_MASK 7
|
|
# define FUNCTION (flag & FN_MASK)
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
APPEND_DIR: append the path component to the path being built and check
|
|
for its existence. If doesn't exist and we are creating directories, do
|
|
so for this one; else signal success or error as appropriate.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == APPEND_DIR) {
|
|
int too_long = FALSE;
|
|
#ifdef SHORT_NAMES
|
|
char *old_end = end;
|
|
#endif
|
|
|
|
Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp)));
|
|
while ((*end = *pathcomp++) != '\0')
|
|
++end;
|
|
#ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */
|
|
if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
|
|
*(end = old_end + FILENAME_MAX) = '\0';
|
|
#endif
|
|
|
|
/* GRR: could do better check, see if overrunning buffer as we go:
|
|
* check end-buildpath after each append, set warning variable if
|
|
* within 20 of FILNAMSIZ; then if var set, do careful check when
|
|
* appending. Clear variable when begin new path. */
|
|
|
|
if ((end-buildpath) > FILNAMSIZ-2) /* need '/', one-char name, '\0' */
|
|
too_long = TRUE; /* check if extracting directory? */
|
|
if (stat(buildpath, &G.statbuf)) { /* path doesn't exist */
|
|
if (!G.create_dirs) { /* told not to create (freshening) */
|
|
free(buildpath);
|
|
return MPN_INF_SKIP; /* path doesn't exist: nothing to do */
|
|
}
|
|
if (too_long) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: path too long: %s\n",
|
|
FnFilter1(buildpath)));
|
|
free(buildpath);
|
|
/* no room for filenames: fatal */
|
|
return MPN_ERR_TOOLONG;
|
|
}
|
|
if (mkdir(buildpath, 0777) == -1) { /* create the directory */
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: cannot create %s\n\
|
|
unable to process %s.\n",
|
|
FnFilter2(buildpath), FnFilter1(G.filename)));
|
|
free(buildpath);
|
|
/* path didn't exist, tried to create, failed */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
created_dir = TRUE;
|
|
} else if (!S_ISDIR(G.statbuf.st_mode)) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: %s exists but is not directory\n\
|
|
unable to process %s.\n",
|
|
FnFilter2(buildpath), FnFilter1(G.filename)));
|
|
free(buildpath);
|
|
/* path existed but wasn't dir */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
if (too_long) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: path too long: %s\n", FnFilter1(buildpath)));
|
|
free(buildpath);
|
|
/* no room for filenames: fatal */
|
|
return MPN_ERR_TOOLONG;
|
|
}
|
|
*end++ = '_';
|
|
*end = '\0';
|
|
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath)));
|
|
return MPN_OK;
|
|
|
|
} /* end if (FUNCTION == APPEND_DIR) */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
GETPATH: copy full path to the string pointed at by pathcomp, and free
|
|
buildpath.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == GETPATH) {
|
|
strcpy(pathcomp, buildpath);
|
|
Trace((stderr, "getting and freeing path [%s]\n",
|
|
FnFilter1(pathcomp)));
|
|
free(buildpath);
|
|
buildpath = end = (char *)NULL;
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
APPEND_NAME: assume the path component is the filename; append it and
|
|
return without checking for existence.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == APPEND_NAME) {
|
|
#ifdef SHORT_NAMES
|
|
char *old_end = end;
|
|
#endif
|
|
short dlen;
|
|
|
|
Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp)));
|
|
while ((*end = *pathcomp++) != '\0') {
|
|
++end;
|
|
#ifdef SHORT_NAMES /* truncate name at 14 characters, typically */
|
|
if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
|
|
*(end = old_end + FILENAME_MAX) = '\0';
|
|
#endif
|
|
if (isdirdev(buildpath))
|
|
{
|
|
dlen = 5;
|
|
}
|
|
else
|
|
{
|
|
dlen = 0;
|
|
}
|
|
|
|
if ((end-buildpath-dlen) >= FILNAMSIZ) {
|
|
*--end = '\0';
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"checkdir warning: path too long; truncating\n\
|
|
%s\n -> %s\n",
|
|
FnFilter1(G.filename), FnFilter2(buildpath)));
|
|
return MPN_INF_TRUNC; /* filename truncated */
|
|
}
|
|
}
|
|
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath)));
|
|
/* could check for existence here, prompt for new name... */
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
INIT: allocate and initialize buffer space for the file currently being
|
|
extracted. If file was renamed with an absolute path, don't prepend the
|
|
extract-to path.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* GRR: for VMS and TOPS-20, add up to 13 to strlen */
|
|
|
|
if (FUNCTION == INIT) {
|
|
Trace((stderr, "initializing buildpath to "));
|
|
if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1))
|
|
== (char *)NULL)
|
|
return MPN_NOMEM;
|
|
if ((rootlen > 0) && !renamed_fullpath) {
|
|
strcpy(buildpath, rootpath);
|
|
end = buildpath + rootlen;
|
|
} else {
|
|
*buildpath = '\0';
|
|
end = buildpath;
|
|
}
|
|
Trace((stderr, "[%s]\n", FnFilter1(buildpath)));
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
ROOT: if appropriate, store the path in rootpath and create it if
|
|
necessary; else assume it's a zipfile member and return. This path
|
|
segment gets used in extracting all members from every zipfile specified
|
|
on the command line.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#if (!defined(SFX) || defined(SFX_EXDIR))
|
|
if (FUNCTION == ROOT) {
|
|
Trace((stderr, "initializing root path to [%s]\n",
|
|
FnFilter1(pathcomp)));
|
|
if (pathcomp == (char *)NULL) {
|
|
rootlen = 0;
|
|
return MPN_OK;
|
|
}
|
|
if (rootlen > 0) /* rootpath was already set, nothing to do */
|
|
return MPN_OK;
|
|
if ((rootlen = strlen(pathcomp)) > 0) {
|
|
char *tmproot;
|
|
|
|
if ((tmproot = (char *)malloc(rootlen+2)) == (char *)NULL) {
|
|
rootlen = 0;
|
|
return MPN_NOMEM;
|
|
}
|
|
strcpy(tmproot, pathcomp);
|
|
if ((stat(tmproot, &G.statbuf) ||
|
|
!S_ISDIR(G.statbuf.st_mode)))
|
|
{ /* path does not exist */
|
|
if (!G.create_dirs /* || iswild(tmproot) */ ) {
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
/* skip (or treat as stored file) */
|
|
return MPN_INF_SKIP;
|
|
}
|
|
/* create the directory (could add loop here scanning tmproot
|
|
* to create more than one level, but why really necessary?) */
|
|
if (mkdir(tmproot, 0777) == -1) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir: cannot create extraction directory: %s\n",
|
|
FnFilter1(tmproot)));
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
/* path didn't exist, tried to create, and failed: */
|
|
/* file exists, or 2+ subdir levels required */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
}
|
|
if (tmproot[rootlen-1] == '/' || tmproot[rootlen-1] == '_') {
|
|
tmproot[--rootlen] = '\0';
|
|
}
|
|
tmproot[rootlen++] = '_';
|
|
tmproot[rootlen] = '\0';
|
|
if ((rootpath = (char *)realloc(tmproot, rootlen+1)) == NULL) {
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
return MPN_NOMEM;
|
|
}
|
|
}
|
|
Trace((stderr, "rootpath now = [%s]\n", FnFilter1(rootpath)));
|
|
return MPN_OK;
|
|
}
|
|
#endif /* !SFX || SFX_EXDIR */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
END: free rootpath, immediately prior to program exit.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == END) {
|
|
Trace((stderr, "freeing rootpath\n"));
|
|
if (rootlen > 0) {
|
|
free(rootpath);
|
|
rootlen = 0;
|
|
}
|
|
return MPN_OK;
|
|
}
|
|
|
|
return MPN_INVALID; /* should never reach */
|
|
|
|
} /* end function checkdir() */
|
|
|
|
|
|
static void qfix(__G__ ef_ptr, ef_len)
|
|
__GDEF
|
|
uch *ef_ptr;
|
|
unsigned ef_len;
|
|
{
|
|
qdosextra qextra;
|
|
|
|
while (ef_len >= EB_HEADSIZE)
|
|
{
|
|
qdosextra *extra = &qextra;
|
|
jbextra *jbp = (jbextra *)&qextra;
|
|
unsigned eb_len = makeword(EB_LEN + ef_ptr);
|
|
|
|
if (eb_len > (ef_len - EB_HEADSIZE)) {
|
|
/* discovered some extra field inconsistency! */
|
|
Trace((stderr,
|
|
"qfix: block length %u > rest ef_size %u\n", eb_len,
|
|
ef_len - EB_HEADSIZE));
|
|
break;
|
|
}
|
|
|
|
/* Must ensure that we don't use ODD addresses here */
|
|
|
|
memcpy(&qextra, ef_ptr, sizeof(qdosextra));
|
|
switch (extra->shortid) {
|
|
case SHORTID:
|
|
if (!strncmp(extra->longid, LONGID, strlen(LONGID)))
|
|
{
|
|
if (eb_len != EXTRALEN)
|
|
fputs("warning: invalid length in Qdos field", stderr);
|
|
if (extra->header.d_type)
|
|
{
|
|
fs_heads(fgetchid(G.outfile), (timeout_t)-1,
|
|
&extra->header, 14);
|
|
G.pInfo->file_attr |= S_IXUSR;
|
|
}
|
|
}
|
|
|
|
if (!strncmp(jbp->longid, JBLONGID, strlen(JBLONGID)))
|
|
{
|
|
if (eb_len != JBEXTRALEN)
|
|
fputs("warning: invalid length in QZ field", stderr);
|
|
if (jbp->header.d_type)
|
|
{
|
|
fs_heads(fgetchid(G.outfile), (timeout_t)-1,
|
|
&jbp->header, 14);
|
|
G.pInfo->file_attr |= S_IXUSR;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
Trace((stderr,"qfix: unknown extra field block, ID=%d\n",
|
|
extra->shortid));
|
|
break;
|
|
}
|
|
|
|
/* Skip this extra field block */
|
|
ef_ptr += (eb_len + EB_HEADSIZE);
|
|
ef_len -= (eb_len + EB_HEADSIZE);
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef QDOS
|
|
# include <utime.h>
|
|
long timezone = 0;
|
|
#endif
|
|
|
|
|
|
/****************************/
|
|
/* Function close_outfile() */
|
|
/****************************/
|
|
|
|
void close_outfile(__G)
|
|
__GDEF
|
|
{
|
|
union {
|
|
iztimes t3; /* mtime, atime, ctime */
|
|
struct utimbuf t2; /* modtime, actime */
|
|
} zt;
|
|
#ifdef USE_EF_UT_TIME
|
|
unsigned eb_izux_flg;
|
|
#endif
|
|
|
|
if (G.extra_field) {
|
|
qfix(__G__ G.extra_field, G.lrec.extra_field_length);
|
|
}
|
|
|
|
fclose(G.outfile);
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Change the file permissions from default ones to those stored in the
|
|
zipfile.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#ifndef NO_CHMOD
|
|
if (chmod(G.filename, 0xffff & G.pInfo->file_attr))
|
|
perror("chmod (file attributes) error");
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Convert from MSDOS-format local time and date to Unix-format 32-bit GMT
|
|
time: adjust base year from 1980 to 1970, do usual conversions from
|
|
yy/mm/dd hh:mm:ss to elapsed seconds, and account for timezone and day-
|
|
light savings time differences. If we have a Unix extra field, however,
|
|
we're laughing: both mtime and atime are ours.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* skip restoring time stamps on user's request */
|
|
if (uO.D_flag <= 1) {
|
|
#ifdef USE_EF_UT_TIME
|
|
eb_izux_flg = (G.extra_field ? ef_scan_for_izux(G.extra_field,
|
|
G.lrec.extra_field_length, 0,
|
|
G.lrec.last_mod_dos_datetime,
|
|
#ifdef IZ_CHECK_TZ
|
|
(G.tz_is_valid ? &(zt.t3) : NULL),
|
|
#else
|
|
&(zt.t3),
|
|
#endif
|
|
NULL) : 0);
|
|
if (eb_izux_flg & EB_UT_FL_MTIME) {
|
|
TTrace((stderr,
|
|
"\nclose_outfile: Unix e.f. modif. time = %ld\n",
|
|
zt.t3.mtime));
|
|
} else {
|
|
zt.t3.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime);
|
|
}
|
|
if (eb_izux_flg & EB_UT_FL_ATIME) {
|
|
TTrace((stderr,
|
|
"close_outfile: Unix e.f. access time = %ld\n",
|
|
zt.t3.atime));
|
|
} else {
|
|
zt.t3.atime = zt.t3.mtime;
|
|
TTrace((stderr,
|
|
"\nclose_outfile: modification/access times = %ld\n",
|
|
zt.t3.mtime));
|
|
}
|
|
#else
|
|
zt.t3.atime = zt.t3.mtime
|
|
= dos_to_unix_time(G.lrec.last_mod_dos_datetime);
|
|
#endif
|
|
|
|
/* set the file's access and modification times */
|
|
if (utime(G.filename, &(zt.t2))) {
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: cannot set the time for %s\n",
|
|
FnFilter1(G.filename)));
|
|
}
|
|
}
|
|
|
|
} /* end function close_outfile() */
|
|
|
|
|
|
|
|
|
|
#ifdef TIMESTAMP
|
|
|
|
/***************************/
|
|
/* Function stamp_file() */
|
|
/***************************/
|
|
|
|
int stamp_file(fname, modtime)
|
|
ZCONST char *fname;
|
|
time_t modtime;
|
|
{
|
|
struct utimbuf tp;
|
|
|
|
tp.modtime = tp.actime = modtime;
|
|
return (utime(fname, &tp));
|
|
|
|
} /* end function stamp_file() */
|
|
|
|
#endif /* TIMESTAMP */
|
|
|
|
|
|
|
|
|
|
#ifndef SFX
|
|
|
|
/************************/
|
|
/* Function version() */
|
|
/************************/
|
|
|
|
void version(__G)
|
|
__GDEF
|
|
{
|
|
|
|
sprintf((char *)slide, LoadFarString(CompiledWith),
|
|
"c68", " v4.2x", "SMS/QDOS",
|
|
" on ", __DATE__, "","");
|
|
(*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0);
|
|
|
|
} /* end function version() */
|
|
|
|
#endif /* !SFX */
|
|
#endif /* !FUNZIP */
|
|
|
|
#if CRYPT
|
|
|
|
char *getp(__G__ m, p, n)
|
|
__GDEF
|
|
const char *m; /* prompt for password */
|
|
char *p; /* return value: line input */
|
|
int n; /* bytes available in p[] */
|
|
{
|
|
int c; /* one-byte buffer for read() to use */
|
|
int i; /* number of characters input */
|
|
char *w; /* warning on retry */
|
|
|
|
/* get password */
|
|
w = "";
|
|
sd_cure(getchid(0), -1); /* enable cursor */
|
|
do {
|
|
fputs(w, stderr); /* warning if back again */
|
|
fputs(m, stderr); /* display prompt and flush */
|
|
fflush(stderr);
|
|
i = 0;
|
|
do {
|
|
c = getch();
|
|
if (c == 0xc2) {
|
|
if (i > 0) {
|
|
i--; /* the `del' keys works */
|
|
fputs("\b \b", stderr);
|
|
}
|
|
}
|
|
else if (i < n) {
|
|
p[i++] = c; /* truncate past n */
|
|
if(c != '\n') putc('*', stderr);
|
|
}
|
|
} while (c != '\n');
|
|
|
|
putc('\n', stderr); fflush(stderr);
|
|
w = "(line too long--try again)\n";
|
|
} while (p[i-1] != '\n');
|
|
|
|
p[i-1] = 0; /* terminate at newline */
|
|
sd_curs(getchid(0), -1); /* suppress cursor */
|
|
return p; /* return pointer to password */
|
|
|
|
} /* end function getp() */
|
|
|
|
#endif /* CRYPT */
|