#include <stdlib.h>
#define PATH_DELIMITERS ":"

int makeargv(const char *s, const char *delimiters, char ***argvp);

char **getpaths(void) {
   char **myargv;
   char *path;

   path = getenv("PATH");
   if (makeargv(path, PATH_DELIMITERS, &myargv) == -1)
      return NULL;
   else
      return myargv;
}