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extraction works

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This commit is contained in:
Bill Currie 2002-03-18 21:37:39 +00:00
parent 311811bd25
commit 1757030521
3 changed files with 80 additions and 8 deletions
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38
tools/pak/pak.c
View file

@ -22,8 +22,9 @@ main (int argc, char **argv)
int c;
const char *pack_file = 0;
int verbose = 0;
int pad = 0;
while ((c = getopt_long (argc, argv, "cf:tv", long_options, 0)) != -1) {
while ((c = getopt_long (argc, argv, "cf:ptvx", long_options, 0)) != -1) {
switch (c) {
case 'f':
pack_file = optarg;
@ -34,9 +35,15 @@ main (int argc, char **argv)
case 'c':
mode = mo_create;
break;
case 'x':
mode = mo_extract;
break;
case 'v':
verbose = 1;
break;
case 'p':
pad = 1;
break;
}
}
@ -46,15 +53,32 @@ main (int argc, char **argv)
}
switch (mode) {
case mo_extract:
pack = pack_open (pack_file);
if (!pack) {
fprintf (stderr, "error opening %s\n", pack_file);
return 1;
}
for (i = 0; i < pack->numfiles; i++) {
if (verbose)
fprintf (stderr, "%s\n", pack->files[i].name);
pack_extract (pack, &pack->files[i]);
}
pack_close (pack);
break;
case mo_test:
pack = pack_open (pack_file);
if (!pack) {
fprintf (stderr, "error opening %s\n", pack_file);
return 1;
}
for (i = 0; i < pack->numfiles; i++)
printf ("%6d %s\n", pack->files[i].filelen,
pack->files[i].name);
for (i = 0; i < pack->numfiles; i++) {
if (verbose)
printf ("%6d %s\n", pack->files[i].filelen,
pack->files[i].name);
else
printf ("%s\n", pack->files[i].name);
}
pack_close (pack);
break;
case mo_create:
@ -63,8 +87,12 @@ main (int argc, char **argv)
fprintf (stderr, "error creating %s\n", pack_file);
return 1;
}
while (optind < argc)
pack->pad = pad;
while (optind < argc) {
if (verbose)
fprintf (stderr, "%s\n", argv[optind]);
pack_add (pack, argv[optind++]);
}
pack_close (pack);
break;
default:

48
tools/pak/pakfile.c
View file

@ -1,7 +1,12 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <QF/qendian.h>
@ -196,7 +201,7 @@ pack_add (pack_t *pack, const char *filename)
pf->filelen += bytes;
}
fclose (file);
if (pf->filelen & 3) {
if (pack->pad && pf->filelen & 3) {
static char buf[4];
fwrite (buf, 1, 4 - (pf->filelen & 3), pack->handle);
}
@ -204,11 +209,48 @@ pack_add (pack_t *pack, const char *filename)
return 0;
}
static int
make_parents (const char *_path)
{
char *path;
char *d, *p, t;
path = (char *) alloca (strlen (_path) + 1);
strcpy (path, _path);
for (p = path; *p && (d = strchr (p, '/')); p = d + 1) {
t = *d;
*d = 0;
if (mkdir (path, 0777) < 0)
if (errno != EEXIST)
return -1;
*d = t;
}
return 0;
}
int
pack_extract (pack_t *pack, dpackfile_t *pf)
{
//const char *name = pf->name;
const char *name = pf->name;
int count;
int len;
FILE *file;
char buffer[16384];
//fseek (pack->handle, pf->filepos, SEEK_SET);
if (make_parents (name) == -1)
return -1;
if (!(file = fopen (name, "wb")))
return -1;
fseek (pack->handle, pf->filepos, SEEK_SET);
len = pf->filelen;
while (len) {
count = len;
if (count > sizeof (buffer))
count = sizeof (buffer);
count = fread (buffer, 1, count, pack->handle);
fwrite (buffer, 1, count, file);
len -= count;
}
fclose (file);
return 0;
}

2
tools/pak/pakfile.h
View file

@ -15,6 +15,7 @@ typedef struct pack_s {
int modified;
int old_numfiles;
int pad;
} pack_t;
pack_t *pack_new (const char *name);
@ -23,3 +24,4 @@ pack_t *pack_open (const char *name);
void pack_close (pack_t *pack);
pack_t *pack_create (const char *name);
int pack_add (pack_t *pack, const char *filename);
int pack_extract (pack_t *pack, dpackfile_t *pf);