swapon.c

   1 /* released under the public domain, as the content is too trivial to even claim a copyright */
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #ifdef USE_LIBULZ
   6 #include <ulz/stdio-repl.h>
   7 #endif
   8
   9 __attribute__((noreturn))
  10 void usage(void) {
  11         printf("usage: swapon path-to-blockdevice\n");
  12         exit(1);
  13 }
  14
  15 extern int swapon(const char *path, int swapflags);
  16
  17 int main(int argc, char** argv) {
  18         int ret;
  19         if (argc != 2) usage();
  20         if((ret = swapon(argv[1], 0)) == -1) perror("swapon");
  21         return ret != 0;
  22 }