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unzip-6.0/qdos/qdos.c  view on Meta::CPAN

/*
  Copyright (c) 1990-2007 Info-ZIP.  All rights reserved.

  See the accompanying file LICENSE, version 2000-Apr-09 or later
  (the contents of which are also included in unzip.h) for terms of use.
  If, for some reason, these files are missing, the Info-ZIP license
  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------

  qdos.c

  QDOS-specific routines for use with Info-ZIP's UnZip 5.3 and later.

  Contains:  Qstrfix()
             QFilename()
             QMatch()
             chowner()
             Qgetch()
             QReturn()
             LastDir()
             screensize()
             do_wild()           <-- generic enough to put in file_io.c?
             mapattr()
             mapname()
             checkdir()
             qfix()
             close_outfile()
             stamp_file()
             getp()
             version()

  ---------------------------------------------------------------------------*/

#define UNZIP_INTERNAL

#include "unzip.h"
#include "crypt.h"
#include "ttyio.h"
#include <dirent.h>
#include "izqdos.h"
#include "unzvers.h"

#ifndef SFX
char _prog_name[] = "UnZip";
#else
char _prog_name[] = "??Special Flag for unzipsfx hack  ??";
#endif
/* sorrid hack at request of GRR follows; hope the compiler stays kind to us */
char _version[] = {UZ_MAJORVER+'0','.',UZ_MINORVER+'0',UZ_PATCHLEVEL+'0'};
char _extra[] = " " UZ_BETALEVEL;
char _copyright[] = "(c) Info-ZIP Group";
char *  _endmsg = NULL;
long _stack = 16*1024;         /* huge stack (for qdos) */

extern void consetup_title(chanid_t,struct WINDOWDEF *);
void (*_consetup)(chanid_t,struct WINDOWDEF *) = consetup_title;

struct WINDOWDEF _condetails =
{
    2,
    1,
    0,
    7,
    500,
    220,
    2,
    30
};


static jobid_t chowner(chanid_t chan)
{
    extern char *_sys_var;
    char *scht;
    long *cdb;
    long jid;

    scht = *((char **)(_sys_var + 0x78));
    cdb = *(long **)((long *)scht  + (chan & 0xffff));
    jid = *(cdb + 2);
    return jid;
}

int QReturn(int err)
{
    jobid_t me,you;

    me = getpid();
    you = chowner(getchid(0));

    if((me == you) && ((qlflag & 4) == 0))
    {
        if(isatty(0) && isatty(2) && qlwait)
        {
            char c = 0;
            fputs("Press a key to exit", stderr);
            if((io_fbyte(getchid(0), qlwait, &c) == 0) && c == 27)
            {
                io_fbyte(getchid(0), -1, &c);
            }
        }
    }
    if(err > 0) err = -err;     /* We like -ve err nos (exclusively, alas) */
    exit(err);
}

#ifndef FUNZIP

static int created_dir;        /* used in mapname(), checkdir() */
static int renamed_fullpath;   /* ditto */

char *Qstrfix (char *p)
{
    char *q;
    for (q = p; (q = strstr(q, ".zip"));)
    {
        *q = '_';
        q += 4;
    }
    return p;
}

void QFilename(char *f)
{
    char *o,*p,*q = strdup(f);
    p = q;

    if(*q == '.' && *(q+1) == '/') q += 2;
    o = q;

    for(;*q;q++)
    {
        if(*q == '/') *q = '_';
        if((qlflag & 1) == 0)
        {
            if(*q == '.') *q = '_';
        }
    }
    strcpy(f,o);
    free(p);
}

int QMatch(uch c1, uch c2)
{
    int m =0;

    if(c1 != c2)
    {
        if(c1 == '_' && (c2 == '.' || c2 == '/'))