source/libs/zziplib/zziplib-0.13.62/bins/unzzipcat-seeko.c

   1 /*
   2  *      Copyright (c) 2003 Guido Draheim <guidod@gmx.de>
   3  *      Use freely under the restrictions of the ZLIB license.
   4  *
   5  *      This file is used as an example to clarify zzipfseeko api usage.
   6  */
   7
   8 #include <zzip/fseeko.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 #ifdef ZZIP_HAVE_FNMATCH_H
  13 #include <fnmatch.h>
  14 #else
  15 #define fnmatch(x,y,z) strcmp(x,y)
  16 #endif
  17
  18 #ifndef O_BINARY
  19 #define O_BINARY 0
  20 #endif
  21
  22 static const char usage[] =
  23 {
  24     "unzzipcat-seeko <zip> [names].. \n"
  25     "  - unzzip data content of files contained in a zip archive.\n"
  26 };
  27
  28 static void zzip_entry_fprint(ZZIP_ENTRY* entry, FILE* out)
  29 {
  30     ZZIP_ENTRY_FILE* file = zzip_entry_fopen (entry, 0);
  31     if (file)
  32     {
  33         char buffer[1024]; int len;
  34         while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
  35             fwrite (buffer, len, 1, out);
  36
  37         zzip_entry_fclose (file);
  38     }
  39 }
  40
  41 static void zzip_cat_file(FILE* disk, char* name, FILE* out)
  42 {
  43     ZZIP_ENTRY_FILE* file = zzip_entry_ffile (disk, name);
  44     if (file)
  45     {
  46         char buffer[1024]; int len;
  47         while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
  48             fwrite (buffer, len, 1, out);
  49
  50         zzip_entry_fclose (file);
  51     }
  52 }
  53
  54 int
  55 main (int argc, char ** argv)
  56 {
  57     int argn;
  58     FILE* disk;
  59
  60     if (argc <= 1 || ! strcmp (argv[1], "--help"))
  61     {
  62         printf (usage);
  63         return 0;
  64     }
  65     if (! strcmp (argv[1], "--version"))
  66     {
  67         printf (__FILE__" version "ZZIP_PACKAGE" "ZZIP_VERSION"\n");
  68         return 0;
  69     }
  70
  71     disk = fopen (argv[1], "r");
  72     if (! disk) {
  73         perror(argv[1]);
  74         return -1;
  75     }
  76
  77     if (argc == 2)
  78     {  /* print directory list */
  79         ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
  80         if (! entry) puts("no first entry!\n");
  81         for (; entry ; entry = zzip_entry_findnext(entry))
  82         {
  83             char* name = zzip_entry_strdup_name (entry);
  84             printf ("%s\n", name);
  85             free (name);
  86         }
  87         return 0;
  88     }
  89
  90     if (argc == 3)
  91     {  /* list from one spec */
  92         ZZIP_ENTRY* entry = 0;
  93         while ((entry = zzip_entry_findmatch(disk, argv[2], entry, 0, 0)))
  94              zzip_entry_fprint (entry, stdout);
  95
  96         return 0;
  97     }
  98
  99     for (argn=1; argn < argc; argn++)
 100     {   /* list only the matching entries - each in order of commandline */
 101         ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
 102         for (; entry ; entry = zzip_entry_findnext(entry))
 103         {
 104             char* name = zzip_entry_strdup_name (entry);
 105             if (! fnmatch (argv[argn], name,
 106                            FNM_NOESCAPE|FNM_PATHNAME|FNM_PERIOD))
 107                 zzip_cat_file (disk, name, stdout);
 108             free (name);
 109         }
 110     }
 111     return 0;
 112 }
 113
 114 /*
 115  * Local variables:
 116  * c-file-style: "stroustrup"
 117  * End:
 118  */