cpp.c

   1 #include <stdio.h>
   2 #include <libgen.h>
   3
   4 #include "str.h"
   5 #include "xmalloc.h"
   6
   7 int cpp_exec(char *in_file, char *out_file, size_t out_len)
   8 {
   9         char *tmp = xstrdup(in_file);
  10         char cmd[256], *base;
  11         int ret = 0;
  12
  13         base = basename(tmp);
  14
  15         slprintf(out_file, out_len, "/tmp/.tmp-%u-%s", rand(), base);
  16         slprintf(cmd, sizeof(cmd), "cpp -I" ETCDIRE_STRING " %s > %s",
  17                  in_file, out_file);
  18
  19         if (system(cmd) != 0)
  20                 ret = -1;
  21
  22         xfree(tmp);
  23         return ret;
  24 }