com32/lib/strerror.c

   1 /*
   2  * strerror.c
   3  */
   4
   5 #include <string.h>
   6
   7 char *strerror(int errnum)
   8 {
   9   static char message[32] = "error "; /* enough for error 2^63-1 */
  10
  11   char numbuf[32];
  12   char *p;
  13
  14   p = numbuf+sizeof numbuf;
  15   *--p = '\0';
  16
  17   do {
  18     *--p = (errnum % 10) + '0';
  19     errnum /= 10;
  20   } while ( errnum );
  21
  22   return (char *)memcpy(message+6, p, (numbuf+sizeof numbuf)-p);
  23 }