| 1 |
#ifdef HAVE_CONFIG_H |
| 2 |
#include "config.h" |
| 3 |
#endif |
| 4 |
|
| 5 |
#include <stdio.h> |
| 6 |
#include <stdlib.h> |
| 7 |
#ifdef HAVE_STDBOOL_H |
| 8 |
#include <stdbool.h> |
| 9 |
#else |
| 10 |
typedef enum { FALSE = 0, TRUE = 1 } bool; |
| 11 |
#endif |
| 12 |
#ifdef HAVE_GETOPT_H |
| 13 |
#include <getopt.h> |
| 14 |
#else |
| 15 |
#include "getopt.h" |
| 16 |
#endif |
| 17 |
|
| 18 |
#include <string.h> |
| 19 |
#include <errno.h> |
| 20 |
|
| 21 |
static u32 fgetu32 (FILE *f) |
| 22 |
{ |
| 23 |
register u32 r; |
| 24 |
|
| 25 |
r = fgetc(f) << 0; |
| 26 |
r |= fgetc(f) << 8; |
| 27 |
r |= fgetc(f) << 16; |
| 28 |
r |= fgetc(f) << 24; |
| 29 |
|
| 30 |
return r; |
| 31 |
} |
| 32 |
|
| 33 |
static u32 fgetu16 (FILE *f) |
| 34 |
{ |
| 35 |
register u32 r; |
| 36 |
|
| 37 |
r = fgetc(f) << 0; |
| 38 |
r |= fgetc(f) << 8; |
| 39 |
|
| 40 |
return r; |
| 41 |
} |
| 42 |
|
| 43 |
static void parse_zip (char *path) |
| 44 |
{ |
| 45 |
FILE *f = fopen (path, "rb"); |
| 46 |
|
| 47 |
if (!f) |
| 48 |
{ |
| 49 |
fprintf (stderr, "skipping '%s': %s\n", path, strerror (errno)); |
| 50 |
goto out; |
| 51 |
} |
| 52 |
|
| 53 |
while (!feof (f)) |
| 54 |
{ |
| 55 |
u32 id = fgetu32 (f); |
| 56 |
|
| 57 |
if (id == 0x04034b50UL) |
| 58 |
{ |
| 59 |
u16 version = fgetu16 (f); |
| 60 |
u16 flags = fgetu16 (f); |
| 61 |
u16 compression_method = fgetu16 (f); |
| 62 |
u16 lastmodtime = fgetu16 (f); |
| 63 |
u16 lastmoddate = fgetu16 (f); |
| 64 |
u32 crc32 = fgetu32 (f); |
| 65 |
u32 compr_size = fgetu32 (f); |
| 66 |
u32 uncompr_size = fgetu32 (f); |
| 67 |
u16 name_len = fgetu16 (f); |
| 68 |
u16 extra_field_len = fgetu16 (f); |
| 69 |
|
| 70 |
char zip_path [1024]; |
| 71 |
|
| 72 |
(void)crc32; /* suppress warning */ |
| 73 |
|
| 74 |
/* these are unused. */ |
| 75 |
(void) lastmoddate; |
| 76 |
(void) lastmodtime; |
| 77 |
(void) compression_method; |
| 78 |
(void) version; |
| 79 |
|
| 80 |
if (name_len < 1024) |
| 81 |
{ |
| 82 |
fread (zip_path, name_len, 1, f); |
| 83 |
zip_path [name_len] = 0; |
| 84 |
} |
| 85 |
else |
| 86 |
{ |
| 87 |
fprintf (stderr, "filename too long (>1023 bytes), skipping zipfile\n"); |
| 88 |
goto out; |
| 89 |
} |
| 90 |
|
| 91 |
fseek (f, extra_field_len, SEEK_CUR); |
| 92 |
|
| 93 |
printf ("found file '%s', size %ld (%ld)", zip_path, (long)uncompr_size, (long)compr_size); |
| 94 |
|
| 95 |
if (flags & 1) |
| 96 |
printf (", encrypted"); |
| 97 |
|
| 98 |
if (compr_size >= 23) |
| 99 |
{ |
| 100 |
u8 file[24]; |
| 101 |
fread (file, 24, 1, f); |
| 102 |
|
| 103 |
printf ("\n%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x", |
| 104 |
file[0], file[1], file[ 2], file[ 3], |
| 105 |
file[4], file[5], file[ 6], file[ 7], |
| 106 |
file[8], file[9], file[10], file[11]); |
| 107 |
|
| 108 |
printf (" : %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x", |
| 109 |
file[12], file[13], file[14], file[15], |
| 110 |
file[16], file[17], file[18], file[19], |
| 111 |
file[20], file[21], file[22], file[23]); |
| 112 |
|
| 113 |
compr_size -= 24; |
| 114 |
} |
| 115 |
|
| 116 |
printf ("\n"); |
| 117 |
|
| 118 |
fseek (f, compr_size, SEEK_CUR); |
| 119 |
} |
| 120 |
else if (id == 0x08074b50UL) /* extended local sig (?) */ |
| 121 |
{ |
| 122 |
fseek (f, 12, SEEK_CUR); |
| 123 |
} |
| 124 |
else if (id == 0x30304b50UL) |
| 125 |
{ |
| 126 |
/* ignore */ |
| 127 |
} |
| 128 |
else if (id == 0x02014b50UL || id == 0x06054b50UL) |
| 129 |
{ |
| 130 |
goto out; |
| 131 |
} |
| 132 |
else |
| 133 |
{ |
| 134 |
fprintf (stderr, "found id %08lx, '%s' is not a zipfile ver 2.xx, skipping\n", |
| 135 |
(unsigned long)id, path); |
| 136 |
goto out; |
| 137 |
} |
| 138 |
} |
| 139 |
|
| 140 |
out: |
| 141 |
fclose (f); |
| 142 |
} |
| 143 |
|
| 144 |
static void usage (int ec) |
| 145 |
{ |
| 146 |
printf ("\n" |
| 147 |
PACKAGE " version " VERSION ", zipinfo - tell me about a zip file\n" |
| 148 |
"written by Marc Lehmann <pcg@goof.com> You can find more info on\n" |
| 149 |
"http://www.goof.com/pcg/marc/\n" |
| 150 |
"\n" |
| 151 |
"USAGE: zipinfo file... the zipfiles to parse\n" |
| 152 |
"\n" |
| 153 |
); |
| 154 |
|
| 155 |
exit (ec); |
| 156 |
} |
| 157 |
|
| 158 |
static struct option options[] = { |
| 159 |
{ "help" , no_argument , 0, 'h' }, |
| 160 |
{ "version" , no_argument , 0, 'R' }, |
| 161 |
{ 0 , 0 , 0, 0 }, |
| 162 |
}; |
| 163 |
|
| 164 |
int main (int argc, char *argv[]) |
| 165 |
{ |
| 166 |
int option_index = 0; |
| 167 |
int c; |
| 168 |
|
| 169 |
while ((c = getopt_long (argc, argv, "", options, &option_index)) != -1) |
| 170 |
switch (c) |
| 171 |
{ |
| 172 |
case 'h': |
| 173 |
usage (0); |
| 174 |
break; |
| 175 |
case 'R': |
| 176 |
printf ("zipinfo version " VERSION "\n"); |
| 177 |
exit (0); |
| 178 |
} |
| 179 |
|
| 180 |
if (optind >= argc) |
| 181 |
{ |
| 182 |
fprintf (stderr, "you have to specify one or more zip files (try --help)\n"); |
| 183 |
exit (1); |
| 184 |
} |
| 185 |
|
| 186 |
for (; optind < argc; optind++) |
| 187 |
parse_zip (argv[optind]); |
| 188 |
|
| 189 |
return 0; |
| 190 |
} |
