source/libs/zziplib/zziplib-0.13.62/test/zzipsetstub.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 static const char usage[] =
   5 {
   6     "zzipsetstub <zipfile> <zipsfxstub>... \n"
   7     " overwrite the header of the zipfile with the sfxstub code.\n"
   8     " this is usually the last step in creating a selfextract archive\n"
   9     " or an application with all its data appended as a zip.\n"
  10 };
  11
  12 int
  13 main (int argc, char ** argv)
  14 {
  15     int argn;
  16     if (argc <= 2)
  17     {
  18         printf (usage);
  19         exit (0);
  20     }
  21
  22     {
  23         char buf[17]; int n;
  24         char* zipfile = 0; FILE* zipFILE = 0;
  25         char* sfxfile = 0; FILE* sfxFILE = 0;
  26
  27         for (argn=1; argn < argc; argn++)
  28         {
  29             if (argv[argn][0] == '-') continue;
  30             if (! zipfile) { zipfile = argv[argn]; continue; }
  31             if (! sfxfile) { sfxfile = argv[argn]; continue; }
  32             /* superflous argument */
  33         }
  34
  35         zipFILE = fopen (zipfile, "r+b");
  36         if (! zipFILE) { perror (zipfile); return 1; }
  37
  38         sfxFILE = fopen (sfxfile, "rb");
  39         if (! sfxFILE) { perror (sfxfile); return 1; }
  40
  41         while (0 < (n = fread(buf, 1, 16, sfxFILE)))
  42         {
  43             buf[n] = '\0';
  44             fwrite (buf, 1, n, zipFILE);
  45         }
  46
  47         if (n == -1)
  48             perror (argv[argn]);
  49
  50         fclose (sfxFILE);
  51         fclose (zipFILE);
  52     }
  53
  54     return 0;
  55 }
  56
  57 /*
  58  * Local variables:
  59  * c-file-style: "stroustrup"
  60  * End:
  61  */