/* strerror_r.c --- POSIX compatible system error routine
- Copyright (C) 2010-2016 Free Software Foundation, Inc.
+ Copyright (C) 2010-2019 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
+#if !HAVE_SNPRINTF
+# include <stdarg.h>
+#endif
#include "strerror-override.h"
#endif
int __xpg_strerror_r (int errnum, char *buf, size_t buflen);
-#elif HAVE_DECL_STRERROR_R_ORIG && !(__GLIBC__ >= 2 || defined __UCLIBC__ || defined __CYGWIN__)
+#elif HAVE_DECL_STRERROR_R && !(__GLIBC__ >= 2 || defined __UCLIBC__ || defined __CYGWIN__)
/* The system's strerror_r function is OK, except that its third argument
is 'int', not 'size_t', or its return type is wrong. */
# define USE_SYSTEM_STRERROR 1
-# if defined __NetBSD__ || defined __hpux || ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) || defined __sgi || (defined __sun && !defined _LP64) || defined __CYGWIN__
+# if defined __NetBSD__ || defined __hpux || (defined _WIN32 && !defined __CYGWIN__) || defined __sgi || (defined __sun && !defined _LP64) || defined __CYGWIN__
/* No locking needed. */
safe_copy (char *buf, size_t buflen, const char *msg)
{
size_t len = strlen (msg);
- int ret;
+ size_t moved = len < buflen ? len : buflen - 1;
- if (len < buflen)
- {
- /* Although POSIX allows memcpy() to corrupt errno, we don't
- know of any implementation where this is a real problem. */
- memcpy (buf, msg, len + 1);
- ret = 0;
- }
- else
- {
- memcpy (buf, msg, buflen - 1);
- buf[buflen - 1] = '\0';
- ret = ERANGE;
- }
- return ret;
+ /* Although POSIX lets memmove corrupt errno, we don't
+ know of any implementation where this is a real problem. */
+ memmove (buf, msg, moved);
+ buf[moved] = '\0';
+ return len < buflen ? 0 : ERANGE;
}
# else
ret = strerror_r (errnum, buf, buflen);
- /* Some old implementations may return (-1, EINVAL) instead of EINVAL. */
+ /* Some old implementations may return (-1, EINVAL) instead of EINVAL.
+ But on Haiku, valid error numbers are negative. */
+# if !defined __HAIKU__
if (ret < 0)
ret = errno;
+# endif
# endif
-# ifdef _AIX
- /* AIX returns 0 rather than ERANGE when truncating strings; try
+# if defined _AIX || defined __HAIKU__
+ /* AIX and Haiku return 0 rather than ERANGE when truncating strings; try
again until we are sure we got the entire string. */
if (!ret && strlen (buf) == buflen - 1)
{
/* Try to do what strerror (errnum) does, but without clobbering the
buffer used by strerror(). */
-# if defined __NetBSD__ || defined __hpux || ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) || defined __CYGWIN__ /* NetBSD, HP-UX, native Windows, Cygwin */
+# if defined __NetBSD__ || defined __hpux || (defined _WIN32 && !defined __CYGWIN__) || defined __CYGWIN__ /* NetBSD, HP-UX, native Windows, Cygwin */
/* NetBSD: sys_nerr, sys_errlist are declared through _NETBSD_SOURCE
and <errno.h> above.
# endif
+#endif
+
+#if defined _WIN32 && !defined __CYGWIN__
+ /* MSVC 14 defines names for many error codes in the range 100..140,
+ but _sys_errlist contains strings only for the error codes
+ < _sys_nerr = 43. */
+ if (ret == EINVAL)
+ {
+ const char *errmsg;
+
+ switch (errnum)
+ {
+ case 100 /* EADDRINUSE */:
+ errmsg = "Address already in use";
+ break;
+ case 101 /* EADDRNOTAVAIL */:
+ errmsg = "Cannot assign requested address";
+ break;
+ case 102 /* EAFNOSUPPORT */:
+ errmsg = "Address family not supported by protocol";
+ break;
+ case 103 /* EALREADY */:
+ errmsg = "Operation already in progress";
+ break;
+ case 105 /* ECANCELED */:
+ errmsg = "Operation canceled";
+ break;
+ case 106 /* ECONNABORTED */:
+ errmsg = "Software caused connection abort";
+ break;
+ case 107 /* ECONNREFUSED */:
+ errmsg = "Connection refused";
+ break;
+ case 108 /* ECONNRESET */:
+ errmsg = "Connection reset by peer";
+ break;
+ case 109 /* EDESTADDRREQ */:
+ errmsg = "Destination address required";
+ break;
+ case 110 /* EHOSTUNREACH */:
+ errmsg = "No route to host";
+ break;
+ case 112 /* EINPROGRESS */:
+ errmsg = "Operation now in progress";
+ break;
+ case 113 /* EISCONN */:
+ errmsg = "Transport endpoint is already connected";
+ break;
+ case 114 /* ELOOP */:
+ errmsg = "Too many levels of symbolic links";
+ break;
+ case 115 /* EMSGSIZE */:
+ errmsg = "Message too long";
+ break;
+ case 116 /* ENETDOWN */:
+ errmsg = "Network is down";
+ break;
+ case 117 /* ENETRESET */:
+ errmsg = "Network dropped connection on reset";
+ break;
+ case 118 /* ENETUNREACH */:
+ errmsg = "Network is unreachable";
+ break;
+ case 119 /* ENOBUFS */:
+ errmsg = "No buffer space available";
+ break;
+ case 123 /* ENOPROTOOPT */:
+ errmsg = "Protocol not available";
+ break;
+ case 126 /* ENOTCONN */:
+ errmsg = "Transport endpoint is not connected";
+ break;
+ case 128 /* ENOTSOCK */:
+ errmsg = "Socket operation on non-socket";
+ break;
+ case 129 /* ENOTSUP */:
+ errmsg = "Not supported";
+ break;
+ case 130 /* EOPNOTSUPP */:
+ errmsg = "Operation not supported";
+ break;
+ case 132 /* EOVERFLOW */:
+ errmsg = "Value too large for defined data type";
+ break;
+ case 133 /* EOWNERDEAD */:
+ errmsg = "Owner died";
+ break;
+ case 134 /* EPROTO */:
+ errmsg = "Protocol error";
+ break;
+ case 135 /* EPROTONOSUPPORT */:
+ errmsg = "Protocol not supported";
+ break;
+ case 136 /* EPROTOTYPE */:
+ errmsg = "Protocol wrong type for socket";
+ break;
+ case 138 /* ETIMEDOUT */:
+ errmsg = "Connection timed out";
+ break;
+ case 140 /* EWOULDBLOCK */:
+ errmsg = "Operation would block";
+ break;
+ default:
+ errmsg = NULL;
+ break;
+ }
+ if (errmsg != NULL)
+ ret = safe_copy (buf, buflen, errmsg);
+ }
#endif
if (ret == EINVAL && !*buf)
- snprintf (buf, buflen, "Unknown error %d", errnum);
+ {
+#if defined __HAIKU__
+ /* For consistency with perror(). */
+ snprintf (buf, buflen, "Unknown Application Error (%d)", errnum);
+#else
+ snprintf (buf, buflen, "Unknown error %d", errnum);
+#endif
+ }
errno = saved_errno;
return ret;
projects / deliverable / binutils-gdb.git / blobdiff