buildnum/buildnum.c

   1
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <string.h>
   5
   6 // LordHavoc: wait for a key press so the window doesn't disappear immediately
   7 #if _DEBUG && WIN32
   8 #define ERROR fprintf(stderr, "press any key\n");getchar();return -1;
   9 #else
  10 #define ERROR return -1;
  11 #endif
  12
  13 // version template:
  14 #define BUILDNUMBER 1
  15
  16 int main(int argc, char **argv)
  17 {
  18         FILE *file;
  19         unsigned int insize, outsize, sizedifference, inbuildsize, outbuildsize, writtensize;
  20         unsigned char *data, *in, *out, *buildstring, *endofbuildstring, outbuildstring[32];
  21         int inbuildnumber, outbuildnumber, remainder;
  22         if (argc != 2)
  23         {
  24                 fprintf(stderr, "usage: buildnum <filename.c or .h>\npurpose: increments build number in version string for darkplaces engine\n");
  25                 ERROR
  26         }
  27
  28         file = fopen(argv[1], "rb");
  29         if (!file)
  30         {
  31                 fprintf(stderr, "buildnum: unable to open file \"%s\" for reading\n", argv[1]);
  32                 ERROR
  33         }
  34
  35         fseek(file, 0, SEEK_END);
  36         insize = ftell(file);
  37         data = calloc(1, insize+20);
  38         fseek(file, 0, SEEK_SET);
  39         if (fread(data, 1, insize, file) < insize)
  40         {
  41                 fprintf(stderr, "buildnum: unable to read file \"%s\"\n", argv[1]);
  42                 ERROR
  43         }
  44         fclose(file);
  45         buildstring = strstr(data, "#define BUILDNUMBER ");
  46         if (!buildstring)
  47         {
  48                 fprintf(stderr, "buildnum: unable to find \"#define BUILDNUMBER \"\n");
  49                 ERROR
  50         }
  51         buildstring += strlen("#define BUILDNUMBER ");
  52         endofbuildstring = buildstring;
  53         while (*endofbuildstring && *endofbuildstring != '\r' && *endofbuildstring != '\n')
  54                 endofbuildstring++;
  55         inbuildnumber = atoi(buildstring);
  56         outbuildnumber = inbuildnumber + 1;
  57         printf("incrementing build number %d to %d\n", inbuildnumber, outbuildnumber);
  58         sprintf(outbuildstring, "%d", outbuildnumber);
  59         inbuildsize = endofbuildstring - buildstring;
  60         outbuildsize = strlen(outbuildstring);
  61         sizedifference = outbuildsize-inbuildsize;
  62         remainder = (data + insize) - buildstring;
  63         outsize = insize + sizedifference;
  64         memmove(buildstring + sizedifference, buildstring, remainder);
  65         in = outbuildstring;
  66         out = buildstring;
  67         while (*in)
  68                 *out++ = *in++;
  69
  70         file = fopen(argv[1], "wb");
  71         if (!file)
  72         {
  73                 fprintf(stderr, "buildnum: unable to open file \"%s\" for writing\n", argv[1]);
  74                 ERROR
  75         }
  76
  77         writtensize = fwrite(data, 1, outsize, file);
  78         fclose(file);
  79         if (writtensize < outsize)
  80         {
  81                 fprintf(stderr, "buildnum: error writing file \"%s\", emergency code trying to save to buildnum.dmp\n", argv[1]);
  82                 file = fopen("buildnum.dmp", "wb");
  83                 if (!file)
  84                 {
  85                         fprintf(stderr, "buildnum: unable to open file for writing\n");
  86                         ERROR
  87                 }
  88
  89                 writtensize = fwrite(data, 1, outsize, file);
  90                 fclose(file);
  91                 if (writtensize < outsize)
  92                 {
  93                         fprintf(stderr, "buildnum: error writing emergency dump file!\n");
  94                         ERROR
  95                 }
  96         }
  97
  98         return 0;
  99 }
 100