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/*
* Copyright (C) 2002 Manuel Novoa III
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <features.h>
#include <errno.h>
#include <string.h>
#include "_syserrmsg.h"
libc_hidden_proto(__xpg_strerror_r)
libc_hidden_proto(memcpy)
libc_hidden_proto(strlen)
#ifdef __UCLIBC_HAS_ERRNO_MESSAGES__
extern const char _string_syserrmsgs[] attribute_hidden;
#if defined(__alpha__) || defined(__mips__) || defined(__sparc__)
static const unsigned char estridx[] = {
0, /* success is always 0 */
EPERM,
ENOENT,
ESRCH,
EINTR,
EIO,
ENXIO,
E2BIG,
ENOEXEC,
EBADF,
ECHILD,
EAGAIN,
ENOMEM,
EACCES,
EFAULT,
ENOTBLK,
EBUSY,
EEXIST,
EXDEV,
ENODEV,
ENOTDIR,
EISDIR,
EINVAL,
ENFILE,
EMFILE,
ENOTTY,
ETXTBSY,
EFBIG,
ENOSPC,
ESPIPE,
EROFS,
EMLINK,
EPIPE,
EDOM,
ERANGE,
EDEADLK,
ENAMETOOLONG,
ENOLCK,
ENOSYS,
ENOTEMPTY,
ELOOP,
0,
ENOMSG,
EIDRM,
ECHRNG,
EL2NSYNC,
EL3HLT,
EL3RST,
ELNRNG,
EUNATCH,
ENOCSI,
EL2HLT,
EBADE,
EBADR,
EXFULL,
ENOANO,
EBADRQC,
EBADSLT,
0,
EBFONT,
ENOSTR,
ENODATA,
ETIME,
ENOSR,
ENONET,
ENOPKG,
EREMOTE,
ENOLINK,
EADV,
ESRMNT,
ECOMM,
EPROTO,
EMULTIHOP,
EDOTDOT,
EBADMSG,
EOVERFLOW,
ENOTUNIQ,
EBADFD,
EREMCHG,
ELIBACC,
ELIBBAD,
ELIBSCN,
ELIBMAX,
ELIBEXEC,
EILSEQ,
ERESTART,
ESTRPIPE,
EUSERS,
ENOTSOCK,
EDESTADDRREQ,
EMSGSIZE,
EPROTOTYPE,
ENOPROTOOPT,
EPROTONOSUPPORT,
ESOCKTNOSUPPORT,
EOPNOTSUPP,
EPFNOSUPPORT,
EAFNOSUPPORT,
EADDRINUSE,
EADDRNOTAVAIL,
ENETDOWN,
ENETUNREACH,
ENETRESET,
ECONNABORTED,
ECONNRESET,
ENOBUFS,
EISCONN,
ENOTCONN,
ESHUTDOWN,
ETOOMANYREFS,
ETIMEDOUT,
ECONNREFUSED,
EHOSTDOWN,
EHOSTUNREACH,
EALREADY,
EINPROGRESS,
ESTALE,
EUCLEAN,
ENOTNAM,
ENAVAIL,
EISNAM,
EREMOTEIO,
#if EDQUOT > 200 /* mips has an outrageous value for this... */
0,
#else
EDQUOT,
#endif
ENOMEDIUM,
EMEDIUMTYPE,
#if EDEADLOCK != EDEADLK
EDEADLOCK,
#endif
};
#endif
int __xpg_strerror_r(int errnum, char *strerrbuf, size_t buflen)
{
register char *s;
int i, retval;
char buf[_STRERROR_BUFSIZE];
static const char unknown[] = {
'U', 'n', 'k', 'n', 'o', 'w', 'n', ' ', 'e', 'r', 'r', 'o', 'r', ' '
};
retval = EINVAL;
#ifdef __UCLIBC_HAS_ERRNO_MESSAGES__
#if defined(__alpha__) || defined(__mips__) || defined(__sparc__)
/* Need to translate errno to string index. */
for (i = 0 ; i < sizeof(estridx)/sizeof(estridx[0]) ; i++) {
if (estridx[i] == errnum) {
goto GOT_ESTRIDX;
}
}
i = INT_MAX; /* Failed, but may need to check mips special case. */
#if EDQUOT > 200 /* Deal with large EDQUOT value on mips */
if (errnum == EDQUOT)
i = 122;
#endif
GOT_ESTRIDX:
#else
/* No errno to string index translation needed. */
i = errnum;
#endif
if (((unsigned int) i) < _SYS_NERR) {
/* Trade time for space. This function should rarely be called
* so rather than keeping an array of pointers for the different
* messages, just run through the buffer until we find the
* correct string. */
for (s = (char *) _string_syserrmsgs ; i ; ++s) {
if (!*s) {
--i;
}
}
if (*s) { /* Make sure we have an actual message. */
retval = 0;
goto GOT_MESG;
}
}
#endif /* __UCLIBC_HAS_ERRNO_MESSAGES__ */
s = _int10tostr(buf+sizeof(buf)-1, errnum) - sizeof(unknown);
memcpy(s, unknown, sizeof(unknown));
GOT_MESG:
if (!strerrbuf) { /* SUSv3 */
buflen = 0;
}
i = strlen(s) + 1;
if (i > buflen) {
i = buflen;
retval = ERANGE;
}
if (i) {
memcpy(strerrbuf, s, i);
strerrbuf[i-1] = 0; /* In case buf was too small. */
}
if (retval) {
__set_errno(retval);
}
return retval;
}
#else /* __UCLIBC_HAS_ERRNO_MESSAGES__ */
int __xpg_strerror_r(int errnum, char *strerrbuf, size_t buflen)
{
register char *s;
int i, retval;
char buf[_STRERROR_BUFSIZE];
static const char unknown[] = {
'U', 'n', 'k', 'n', 'o', 'w', 'n', ' ', 'e', 'r', 'r', 'o', 'r', ' '
};
s = _int10tostr(buf+sizeof(buf)-1, errnum) - sizeof(unknown);
memcpy(s, unknown, sizeof(unknown));
if (!strerrbuf) { /* SUSv3 */
buflen = 0;
}
retval = EINVAL;
i = buf + sizeof(buf) - s;
if (i > buflen) {
i = buflen;
retval = ERANGE;
}
if (i) {
memcpy(strerrbuf, s, i);
strerrbuf[i-1] = 0; /* In case buf was too small. */
}
__set_errno(retval);
return retval;
}
#endif /* __UCLIBC_HAS_ERRNO_MESSAGES__ */
libc_hidden_def(__xpg_strerror_r)
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