fusl/src/errno/strerror.c

#include <errno.h>
#include <string.h>
#include "locale_impl.h"
#include "libc.h"

#define E(a, b) ((unsigned char)a),
static const unsigned char errid[] = {
#include "__strerror.h"
};

#undef E
#define E(a, b) b "\0"
static const char errmsg[] =
#include "__strerror.h"
    ;

char* __strerror_l(int e, locale_t loc) {
  const char* s;
  int i;
  /* mips has one error code outside of the 8-bit range due to a
   * historical typo, so we just remap it. */
  if (EDQUOT == 1133) {
    if (e == 109)
      e = -1;
    else if (e == EDQUOT)
      e = 109;
  }
  for (i = 0; errid[i] && errid[i] != e; i++)
    ;
  for (s = errmsg; i; s++, i--)
    for (; *s; s++)
      ;
  return (char*)LCTRANS(s, LC_MESSAGES, loc);
}

char* strerror(int e) {
  return __strerror_l(e, CURRENT_LOCALE);
}

weak_alias(__strerror_l, strerror_l);