source/libs/zziplib/zziplib-0.13.62/bins/unzzipcat-mem.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 zzipmmap api usage.
   6  */
   7
   8 #include <zzip/memdisk.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12
  13 #ifdef ZZIP_HAVE_UNISTD_H
  14 #include <unistd.h>
  15 #endif
  16 #ifdef ZZIP_HAVE_IO_H
  17 #include <io.h>
  18 #endif
  19
  20 #ifdef ZZIP_HAVE_FNMATCH_H
  21 #include <fnmatch.h>
  22 #else
  23 #define fnmatch(x,y,z) strcmp(x,y)
  24 #endif
  25
  26 #ifndef O_BINARY
  27 #define O_BINARY 0
  28 #endif
  29
  30 static const char usage[] =
  31 {
  32     "unzzipdir-mem <zip> [names].. \n"
  33     "  - unzzip data content of files contained in a zip archive.\n"
  34 };
  35
  36 static void zzip_mem_entry_fprint(ZZIP_MEM_DISK* disk,
  37                                   ZZIP_MEM_ENTRY* entry, FILE* out)
  38 {
  39     ZZIP_DISK_FILE* file = zzip_mem_entry_fopen (disk, entry);
  40     if (file)
  41     {
  42         char buffer[1024]; int len;
  43         while ((len = zzip_mem_disk_fread (buffer, 1024, 1, file)))
  44             fwrite (buffer, len, 1, out);
  45
  46         zzip_mem_disk_fclose (file);
  47     }
  48 }
  49
  50 static void zzip_mem_disk_cat_file(ZZIP_MEM_DISK* disk, char* name, FILE* out)
  51 {
  52     ZZIP_DISK_FILE* file = zzip_mem_disk_fopen (disk, name);
  53     if (file)
  54     {
  55         char buffer[1024]; int len;
  56         while ((len = zzip_mem_disk_fread (buffer, 1, 1024, file)))
  57         {
  58             fwrite (buffer, 1, len, out);
  59         }
  60
  61         zzip_mem_disk_fclose (file);
  62     }
  63 }
  64
  65 int
  66 main (int argc, char ** argv)
  67 {
  68     int argn;
  69     ZZIP_MEM_DISK* disk;
  70
  71     if (argc <= 1 || ! strcmp (argv[1], "--help"))
  72     {
  73         printf (usage);
  74         return 0;
  75     }
  76     if (! strcmp (argv[1], "--version"))
  77     {
  78         printf (__FILE__" version "ZZIP_PACKAGE" "ZZIP_VERSION"\n");
  79         return 0;
  80     }
  81
  82     disk = zzip_mem_disk_open (argv[1]);
  83     if (! disk) {
  84         perror(argv[1]);
  85         return -1;
  86     }
  87
  88     if (argc == 2)
  89     {  /* print directory list */
  90         ZZIP_MEM_ENTRY* entry = zzip_mem_disk_findfirst(disk);
  91         for (; entry ; entry = zzip_mem_disk_findnext(disk, entry))
  92         {
  93             char* name = zzip_mem_entry_to_name (entry);
  94             printf ("%s\n", name);
  95         }
  96         return 0;
  97     }
  98
  99     if (argc == 3)
 100     {  /* list from one spec */
 101         ZZIP_MEM_ENTRY* entry = 0;
 102         while ((entry = zzip_mem_disk_findmatch(disk, argv[2], entry, 0, 0)))
 103         {
 104              zzip_mem_entry_fprint (disk, entry, stdout);
 105         }
 106
 107         return 0;
 108     }
 109
 110     for (argn=1; argn < argc; argn++)
 111     {   /* list only the matching entries - each in order of commandline */
 112         ZZIP_MEM_ENTRY* entry = zzip_mem_disk_findfirst(disk);
 113         for (; entry ; entry = zzip_mem_disk_findnext(disk, entry))
 114         {
 115             char* name = zzip_mem_entry_to_name (entry);
 116             if (! fnmatch (argv[argn], name,
 117                            FNM_NOESCAPE|FNM_PATHNAME|FNM_PERIOD))
 118                 zzip_mem_disk_cat_file (disk, name, stdout);
 119         }
 120     }
 121     return 0;
 122 }
 123
 124 /*
 125  * Local variables:
 126  * c-file-style: "stroustrup"
 127  * End:
 128  */