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 }