missing/strerror.c

   1 /* public domain rewrite of strerror(3) */
   2
   3 #include "ruby/missing.h"
   4
   5 extern int sys_nerr;
   6 extern char *sys_errlist[];
   7
   8 static char msg[50];
   9
  10 char *
  11 strerror(int error)
  12 {
  13     if (error <= sys_nerr && error > 0) {
  14         return sys_errlist[error];
  15     }
  16     snprintf(msg, sizeof(msg), "Unknown error (%d)", error);
  17     return msg;
  18 }