fbthrift libevent check

check.c

#include <sys/types.h>
#include <event.h>
#include <stdio.h>

int main (){

          const char* lib_version = event_get_version();
          const char* wnt_version = "2.0";
          int lib_digits;
          int wnt_digits;
	  printf("%s",lib_version);
          for (;;) {
            /* If we reached the end of the want version.  We have it. */
            if (*wnt_version == '\0' || *wnt_version == '-') {
              return 0;
            }
            /* If the want version continues but the lib version does not, */
            /* we are missing a letter.  We don't have it. */
            if (*lib_version == '\0' || *lib_version == '-') {
              return 1;
            }
            /* In the 1.4 version numbering style, if there are more digits */
            /* in one version than the other, that one is higher. */
            for (lib_digits = 0;
                lib_version[lib_digits] >= '0' &&
                lib_version[lib_digits] <= '9';
                lib_digits++)
              ;
            for (wnt_digits = 0;
                wnt_version[wnt_digits] >= '0' &&
                wnt_version[wnt_digits] <= '9';
                wnt_digits++)
              ;
            if (lib_digits > wnt_digits) {
              return 0;
            }
            if (lib_digits < wnt_digits) {
              return 1;
            }
            /* If we have greater than what we want.  We have it. */
            if (*lib_version > *wnt_version) {
              return 0;
            }
            /* If we have less, we don't. */
            if (*lib_version < *wnt_version) {
              return 1;
            }
            lib_version++;
            wnt_version++;
          }
          
          return 0;

  ;
  return 0;
}