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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#else
typedef enum { FALSE = 0, TRUE = 1 } bool;
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
#include "getopt.h"
#endif
#include <string.h>
#include <errno.h>
static u32 fgetu32 (FILE *f)
{
register u32 r;
r = fgetc(f) << 0;
r |= fgetc(f) << 8;
r |= fgetc(f) << 16;
r |= fgetc(f) << 24;
return r;
}
static u32 fgetu16 (FILE *f)
{
register u32 r;
r = fgetc(f) << 0;
r |= fgetc(f) << 8;
return r;
}
static void parse_zip (char *path)
{
FILE *f = fopen (path, "rb");
if (!f)
{
fprintf (stderr, "skipping '%s': %s\n", path, strerror (errno));
return;
}
while (!feof (f))
{
u32 id = fgetu32 (f);
if (id == 0x04034b50UL)
{
u16 version = fgetu16 (f);
u16 flags = fgetu16 (f);
u16 compression_method = fgetu16 (f);
u16 lastmodtime = fgetu16 (f);
u16 lastmoddate = fgetu16 (f);
u32 crc32 = fgetu32 (f);
u32 compr_size = fgetu32 (f);
u32 uncompr_size = fgetu32 (f);
u16 name_len = fgetu16 (f);
u16 extra_field_len = fgetu16 (f);
char zip_path [1024];
(void)crc32; /* suppress warning */
/* these are unused. */
(void) lastmoddate;
(void) lastmodtime;
(void) compression_method;
(void) version;
if (name_len < 1024)
{
fread (zip_path, name_len, 1, f);
zip_path [name_len] = 0;
}
else
{
fprintf (stderr, "filename too long (>1023 bytes), skipping zipfile\n");
goto out;
}
fseek (f, extra_field_len, SEEK_CUR);
printf ("found file '%s', size %ld (%ld)", zip_path, (long)uncompr_size, (long)compr_size);
if (flags & 1)
printf (", encrypted");
if (compr_size >= 23)
{
u8 file[24];
fread (file, 24, 1, f);
printf ("\n%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
file[0], file[1], file[ 2], file[ 3],
file[4], file[5], file[ 6], file[ 7],
file[8], file[9], file[10], file[11]);
printf (" : %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
file[12], file[13], file[14], file[15],
file[16], file[17], file[18], file[19],
file[20], file[21], file[22], file[23]);
compr_size -= 24;
}
printf ("\n");
fseek (f, compr_size, SEEK_CUR);
}
else if (id == 0x08074b50UL) /* extended local sig (?) */
{
fseek (f, 12, SEEK_CUR);
}
else if (id == 0x30304b50UL)
{
/* ignore */
}
else if (id == 0x02014b50UL || id == 0x06054b50UL)
{
goto out;
}
else
{
fprintf (stderr, "found id %08lx, '%s' is not a zipfile ver 2.xx, skipping\n",
(unsigned long)id, path);
goto out;
}
}
out:
fclose (f);
}
static void usage (int ec)
{
printf ("\n"
PACKAGE " version " VERSION ", zipinfo - tell me about a zip file\n"
"written by Marc Lehmann <pcg@goof.com> You can find more info on\n"
"http://www.goof.com/pcg/marc/\n"
"\n"
"USAGE: zipinfo file... the zipfiles to parse\n"
"\n"
);
exit (ec);
}
static struct option options[] = {
{ "help" , no_argument , 0, 'h' },
{ "version" , no_argument , 0, 'R' },
{ 0 , 0 , 0, 0 },
};
int main (int argc, char *argv[])
{
int option_index = 0;
int c;
while ((c = getopt_long (argc, argv, "", options, &option_index)) != -1)
switch (c)
{
case 'h':
usage (0);
break;
case 'R':
printf ("zipinfo version " VERSION "\n");
exit (0);
}
if (optind >= argc)
{
fprintf (stderr, "you have to specify one or more zip files (try --help)\n");
exit (1);
}
for (; optind < argc; optind++)
parse_zip (argv[optind]);
return 0;
}
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