| 1 | /* strerror_r.c --- POSIX compatible system error routine
|
|---|
| 2 |
|
|---|
| 3 | Copyright (C) 2010-2021 Free Software Foundation, Inc.
|
|---|
| 4 |
|
|---|
| 5 | This file is free software: you can redistribute it and/or modify
|
|---|
| 6 | it under the terms of the GNU Lesser General Public License as
|
|---|
| 7 | published by the Free Software Foundation; either version 2.1 of the
|
|---|
| 8 | License, or (at your option) any later version.
|
|---|
| 9 |
|
|---|
| 10 | This file is distributed in the hope that it will be useful,
|
|---|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 13 | GNU Lesser General Public License for more details.
|
|---|
| 14 |
|
|---|
| 15 | You should have received a copy of the GNU Lesser General Public License
|
|---|
| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|---|
| 17 |
|
|---|
| 18 | /* Written by Bruno Haible <bruno@clisp.org>, 2010. */
|
|---|
| 19 |
|
|---|
| 20 | #include <config.h>
|
|---|
| 21 |
|
|---|
| 22 | /* Enable declaration of sys_nerr and sys_errlist in <errno.h> on NetBSD. */
|
|---|
| 23 | #define _NETBSD_SOURCE 1
|
|---|
| 24 |
|
|---|
| 25 | /* Specification. */
|
|---|
| 26 | #include <string.h>
|
|---|
| 27 |
|
|---|
| 28 | #include <errno.h>
|
|---|
| 29 | #include <stdio.h>
|
|---|
| 30 | #include <stdlib.h>
|
|---|
| 31 | #if !HAVE_SNPRINTF
|
|---|
| 32 | # include <stdarg.h>
|
|---|
| 33 | #endif
|
|---|
| 34 |
|
|---|
| 35 | #include "strerror-override.h"
|
|---|
| 36 |
|
|---|
| 37 | #if (__GLIBC__ >= 2 || defined __UCLIBC__ || defined __CYGWIN__) && HAVE___XPG_STRERROR_R /* glibc >= 2.3.4, cygwin >= 1.7.9 */
|
|---|
| 38 |
|
|---|
| 39 | # define USE_XPG_STRERROR_R 1
|
|---|
| 40 | extern
|
|---|
| 41 | #ifdef __cplusplus
|
|---|
| 42 | "C"
|
|---|
| 43 | #endif
|
|---|
| 44 | int __xpg_strerror_r (int errnum, char *buf, size_t buflen);
|
|---|
| 45 |
|
|---|
| 46 | #elif HAVE_DECL_STRERROR_R && !(__GLIBC__ >= 2 || defined __UCLIBC__ || defined __CYGWIN__)
|
|---|
| 47 |
|
|---|
| 48 | /* The system's strerror_r function is OK, except that its third argument
|
|---|
| 49 | is 'int', not 'size_t', or its return type is wrong. */
|
|---|
| 50 |
|
|---|
| 51 | # include <limits.h>
|
|---|
| 52 |
|
|---|
| 53 | # define USE_SYSTEM_STRERROR_R 1
|
|---|
| 54 |
|
|---|
| 55 | #else /* (__GLIBC__ >= 2 || defined __UCLIBC__ || defined __CYGWIN__ ? !HAVE___XPG_STRERROR_R : !HAVE_DECL_STRERROR_R) */
|
|---|
| 56 |
|
|---|
| 57 | /* Use the system's strerror(). Exclude glibc and cygwin because the
|
|---|
| 58 | system strerror_r has the wrong return type, and cygwin 1.7.9
|
|---|
| 59 | strerror_r clobbers strerror. */
|
|---|
| 60 | # undef strerror
|
|---|
| 61 |
|
|---|
| 62 | # define USE_SYSTEM_STRERROR 1
|
|---|
| 63 |
|
|---|
| 64 | # if defined __NetBSD__ || defined __hpux || (defined _WIN32 && !defined __CYGWIN__) || defined __sgi || (defined __sun && !defined _LP64) || defined __CYGWIN__
|
|---|
| 65 |
|
|---|
| 66 | /* No locking needed. */
|
|---|
| 67 |
|
|---|
| 68 | /* Get catgets internationalization functions. */
|
|---|
| 69 | # if HAVE_CATGETS
|
|---|
| 70 | # include <nl_types.h>
|
|---|
| 71 | # endif
|
|---|
| 72 |
|
|---|
| 73 | #ifdef __cplusplus
|
|---|
| 74 | extern "C" {
|
|---|
| 75 | #endif
|
|---|
| 76 |
|
|---|
| 77 | /* Get sys_nerr, sys_errlist on HP-UX (otherwise only declared in C++ mode).
|
|---|
| 78 | Get sys_nerr, sys_errlist on IRIX (otherwise only declared with _SGIAPI). */
|
|---|
| 79 | # if defined __hpux || defined __sgi
|
|---|
| 80 | extern int sys_nerr;
|
|---|
| 81 | extern char *sys_errlist[];
|
|---|
| 82 | # endif
|
|---|
| 83 |
|
|---|
| 84 | /* Get sys_nerr on Solaris. */
|
|---|
| 85 | # if defined __sun && !defined _LP64
|
|---|
| 86 | extern int sys_nerr;
|
|---|
| 87 | # endif
|
|---|
| 88 |
|
|---|
| 89 | #ifdef __cplusplus
|
|---|
| 90 | }
|
|---|
| 91 | #endif
|
|---|
| 92 |
|
|---|
| 93 | # else
|
|---|
| 94 |
|
|---|
| 95 | # include "glthread/lock.h"
|
|---|
| 96 |
|
|---|
| 97 | /* This lock protects the buffer returned by strerror(). We assume that
|
|---|
| 98 | no other uses of strerror() exist in the program. */
|
|---|
| 99 | gl_lock_define_initialized(static, strerror_lock)
|
|---|
| 100 |
|
|---|
| 101 | # endif
|
|---|
| 102 |
|
|---|
| 103 | #endif
|
|---|
| 104 |
|
|---|
| 105 | /* On MSVC, there is no snprintf() function, just a _snprintf().
|
|---|
| 106 | It is of lower quality, but sufficient for the simple use here.
|
|---|
| 107 | We only have to make sure to NUL terminate the result (_snprintf
|
|---|
| 108 | does not NUL terminate, like strncpy). */
|
|---|
| 109 | #if !HAVE_SNPRINTF
|
|---|
| 110 | static int
|
|---|
| 111 | local_snprintf (char *buf, size_t buflen, const char *format, ...)
|
|---|
| 112 | {
|
|---|
| 113 | va_list args;
|
|---|
| 114 | int result;
|
|---|
| 115 |
|
|---|
| 116 | va_start (args, format);
|
|---|
| 117 | result = _vsnprintf (buf, buflen, format, args);
|
|---|
| 118 | va_end (args);
|
|---|
| 119 | if (buflen > 0 && (result < 0 || result >= buflen))
|
|---|
| 120 | buf[buflen - 1] = '\0';
|
|---|
| 121 | return result;
|
|---|
| 122 | }
|
|---|
| 123 | # undef snprintf
|
|---|
| 124 | # define snprintf local_snprintf
|
|---|
| 125 | #endif
|
|---|
| 126 |
|
|---|
| 127 | /* Copy as much of MSG into BUF as possible, without corrupting errno.
|
|---|
| 128 | Return 0 if MSG fit in BUFLEN, otherwise return ERANGE. */
|
|---|
| 129 | static int
|
|---|
| 130 | safe_copy (char *buf, size_t buflen, const char *msg)
|
|---|
| 131 | {
|
|---|
| 132 | size_t len = strlen (msg);
|
|---|
| 133 | size_t moved = len < buflen ? len : buflen - 1;
|
|---|
| 134 |
|
|---|
| 135 | /* Although POSIX lets memmove corrupt errno, we don't
|
|---|
| 136 | know of any implementation where this is a real problem. */
|
|---|
| 137 | memmove (buf, msg, moved);
|
|---|
| 138 | buf[moved] = '\0';
|
|---|
| 139 | return len < buflen ? 0 : ERANGE;
|
|---|
| 140 | }
|
|---|
| 141 |
|
|---|
| 142 |
|
|---|
| 143 | int
|
|---|
| 144 | strerror_r (int errnum, char *buf, size_t buflen)
|
|---|
| 145 | #undef strerror_r
|
|---|
| 146 | {
|
|---|
| 147 | /* Filter this out now, so that rest of this replacement knows that
|
|---|
| 148 | there is room for a non-empty message and trailing NUL. */
|
|---|
| 149 | if (buflen <= 1)
|
|---|
| 150 | {
|
|---|
| 151 | if (buflen)
|
|---|
| 152 | *buf = '\0';
|
|---|
| 153 | return ERANGE;
|
|---|
| 154 | }
|
|---|
| 155 | *buf = '\0';
|
|---|
| 156 |
|
|---|
| 157 | /* Check for gnulib overrides. */
|
|---|
| 158 | {
|
|---|
| 159 | char const *msg = strerror_override (errnum);
|
|---|
| 160 |
|
|---|
| 161 | if (msg)
|
|---|
| 162 | return safe_copy (buf, buflen, msg);
|
|---|
| 163 | }
|
|---|
| 164 |
|
|---|
| 165 | {
|
|---|
| 166 | int ret;
|
|---|
| 167 | int saved_errno = errno;
|
|---|
| 168 |
|
|---|
| 169 | #if USE_XPG_STRERROR_R
|
|---|
| 170 |
|
|---|
| 171 | {
|
|---|
| 172 | ret = __xpg_strerror_r (errnum, buf, buflen);
|
|---|
| 173 | if (ret < 0)
|
|---|
| 174 | ret = errno;
|
|---|
| 175 | if (!*buf)
|
|---|
| 176 | {
|
|---|
| 177 | /* glibc 2.13 would not touch buf on err, so we have to fall
|
|---|
| 178 | back to GNU strerror_r which always returns a thread-safe
|
|---|
| 179 | untruncated string to (partially) copy into our buf. */
|
|---|
| 180 | safe_copy (buf, buflen, strerror_r (errnum, buf, buflen));
|
|---|
| 181 | }
|
|---|
| 182 | }
|
|---|
| 183 |
|
|---|
| 184 | #elif USE_SYSTEM_STRERROR_R
|
|---|
| 185 |
|
|---|
| 186 | if (buflen > INT_MAX)
|
|---|
| 187 | buflen = INT_MAX;
|
|---|
| 188 |
|
|---|
| 189 | # ifdef __hpux
|
|---|
| 190 | /* On HP-UX 11.31, strerror_r always fails when buflen < 80; it
|
|---|
| 191 | also fails to change buf on EINVAL. */
|
|---|
| 192 | {
|
|---|
| 193 | char stackbuf[80];
|
|---|
| 194 |
|
|---|
| 195 | if (buflen < sizeof stackbuf)
|
|---|
| 196 | {
|
|---|
| 197 | ret = strerror_r (errnum, stackbuf, sizeof stackbuf);
|
|---|
| 198 | if (ret == 0)
|
|---|
| 199 | ret = safe_copy (buf, buflen, stackbuf);
|
|---|
| 200 | }
|
|---|
| 201 | else
|
|---|
| 202 | ret = strerror_r (errnum, buf, buflen);
|
|---|
| 203 | }
|
|---|
| 204 | # else
|
|---|
| 205 | ret = strerror_r (errnum, buf, buflen);
|
|---|
| 206 |
|
|---|
| 207 | /* Some old implementations may return (-1, EINVAL) instead of EINVAL.
|
|---|
| 208 | But on Haiku, valid error numbers are negative. */
|
|---|
| 209 | # if !defined __HAIKU__
|
|---|
| 210 | if (ret < 0)
|
|---|
| 211 | ret = errno;
|
|---|
| 212 | # endif
|
|---|
| 213 | # endif
|
|---|
| 214 |
|
|---|
| 215 | # if defined _AIX || defined __HAIKU__
|
|---|
| 216 | /* AIX and Haiku return 0 rather than ERANGE when truncating strings; try
|
|---|
| 217 | again until we are sure we got the entire string. */
|
|---|
| 218 | if (!ret && strlen (buf) == buflen - 1)
|
|---|
| 219 | {
|
|---|
| 220 | char stackbuf[STACKBUF_LEN];
|
|---|
| 221 | size_t len;
|
|---|
| 222 | strerror_r (errnum, stackbuf, sizeof stackbuf);
|
|---|
| 223 | len = strlen (stackbuf);
|
|---|
| 224 | /* STACKBUF_LEN should have been large enough. */
|
|---|
| 225 | if (len + 1 == sizeof stackbuf)
|
|---|
| 226 | abort ();
|
|---|
| 227 | if (buflen <= len)
|
|---|
| 228 | ret = ERANGE;
|
|---|
| 229 | }
|
|---|
| 230 | # else
|
|---|
| 231 | /* Solaris 10 does not populate buf on ERANGE. OpenBSD 4.7
|
|---|
| 232 | truncates early on ERANGE rather than return a partial integer.
|
|---|
| 233 | We prefer the maximal string. We set buf[0] earlier, and we
|
|---|
| 234 | know of no implementation that modifies buf to be an
|
|---|
| 235 | unterminated string, so this strlen should be portable in
|
|---|
| 236 | practice (rather than pulling in a safer strnlen). */
|
|---|
| 237 | if (ret == ERANGE && strlen (buf) < buflen - 1)
|
|---|
| 238 | {
|
|---|
| 239 | char stackbuf[STACKBUF_LEN];
|
|---|
| 240 |
|
|---|
| 241 | /* STACKBUF_LEN should have been large enough. */
|
|---|
| 242 | if (strerror_r (errnum, stackbuf, sizeof stackbuf) == ERANGE)
|
|---|
| 243 | abort ();
|
|---|
| 244 | safe_copy (buf, buflen, stackbuf);
|
|---|
| 245 | }
|
|---|
| 246 | # endif
|
|---|
| 247 |
|
|---|
| 248 | #else /* USE_SYSTEM_STRERROR */
|
|---|
| 249 |
|
|---|
| 250 | /* Try to do what strerror (errnum) does, but without clobbering the
|
|---|
| 251 | buffer used by strerror(). */
|
|---|
| 252 |
|
|---|
| 253 | # if defined __NetBSD__ || defined __hpux || (defined _WIN32 && !defined __CYGWIN__) || defined __CYGWIN__ /* NetBSD, HP-UX, native Windows, Cygwin */
|
|---|
| 254 |
|
|---|
| 255 | /* NetBSD: sys_nerr, sys_errlist are declared through _NETBSD_SOURCE
|
|---|
| 256 | and <errno.h> above.
|
|---|
| 257 | HP-UX: sys_nerr, sys_errlist are declared explicitly above.
|
|---|
| 258 | native Windows: sys_nerr, sys_errlist are declared in <stdlib.h>.
|
|---|
| 259 | Cygwin: sys_nerr, sys_errlist are declared in <errno.h>. */
|
|---|
| 260 | if (errnum >= 0 && errnum < sys_nerr)
|
|---|
| 261 | {
|
|---|
| 262 | # if HAVE_CATGETS && (defined __NetBSD__ || defined __hpux)
|
|---|
| 263 | # if defined __NetBSD__
|
|---|
| 264 | nl_catd catd = catopen ("libc", NL_CAT_LOCALE);
|
|---|
| 265 | const char *errmsg =
|
|---|
| 266 | (catd != (nl_catd)-1
|
|---|
| 267 | ? catgets (catd, 1, errnum, sys_errlist[errnum])
|
|---|
| 268 | : sys_errlist[errnum]);
|
|---|
| 269 | # endif
|
|---|
| 270 | # if defined __hpux
|
|---|
| 271 | nl_catd catd = catopen ("perror", NL_CAT_LOCALE);
|
|---|
| 272 | const char *errmsg =
|
|---|
| 273 | (catd != (nl_catd)-1
|
|---|
| 274 | ? catgets (catd, 1, 1 + errnum, sys_errlist[errnum])
|
|---|
| 275 | : sys_errlist[errnum]);
|
|---|
| 276 | # endif
|
|---|
| 277 | # else
|
|---|
| 278 | const char *errmsg = sys_errlist[errnum];
|
|---|
| 279 | # endif
|
|---|
| 280 | if (errmsg == NULL || *errmsg == '\0')
|
|---|
| 281 | ret = EINVAL;
|
|---|
| 282 | else
|
|---|
| 283 | ret = safe_copy (buf, buflen, errmsg);
|
|---|
| 284 | # if HAVE_CATGETS && (defined __NetBSD__ || defined __hpux)
|
|---|
| 285 | if (catd != (nl_catd)-1)
|
|---|
| 286 | catclose (catd);
|
|---|
| 287 | # endif
|
|---|
| 288 | }
|
|---|
| 289 | else
|
|---|
| 290 | ret = EINVAL;
|
|---|
| 291 |
|
|---|
| 292 | # elif defined __sgi || (defined __sun && !defined _LP64) /* IRIX, Solaris <= 9 32-bit */
|
|---|
| 293 |
|
|---|
| 294 | /* For a valid error number, the system's strerror() function returns
|
|---|
| 295 | a pointer to a not copied string, not to a buffer. */
|
|---|
| 296 | if (errnum >= 0 && errnum < sys_nerr)
|
|---|
| 297 | {
|
|---|
| 298 | char *errmsg = strerror (errnum);
|
|---|
| 299 |
|
|---|
| 300 | if (errmsg == NULL || *errmsg == '\0')
|
|---|
| 301 | ret = EINVAL;
|
|---|
| 302 | else
|
|---|
| 303 | ret = safe_copy (buf, buflen, errmsg);
|
|---|
| 304 | }
|
|---|
| 305 | else
|
|---|
| 306 | ret = EINVAL;
|
|---|
| 307 |
|
|---|
| 308 | # else
|
|---|
| 309 |
|
|---|
| 310 | gl_lock_lock (strerror_lock);
|
|---|
| 311 |
|
|---|
| 312 | {
|
|---|
| 313 | char *errmsg = strerror (errnum);
|
|---|
| 314 |
|
|---|
| 315 | /* For invalid error numbers, strerror() on
|
|---|
| 316 | - IRIX 6.5 returns NULL,
|
|---|
| 317 | - HP-UX 11 returns an empty string. */
|
|---|
| 318 | if (errmsg == NULL || *errmsg == '\0')
|
|---|
| 319 | ret = EINVAL;
|
|---|
| 320 | else
|
|---|
| 321 | ret = safe_copy (buf, buflen, errmsg);
|
|---|
| 322 | }
|
|---|
| 323 |
|
|---|
| 324 | gl_lock_unlock (strerror_lock);
|
|---|
| 325 |
|
|---|
| 326 | # endif
|
|---|
| 327 |
|
|---|
| 328 | #endif
|
|---|
| 329 |
|
|---|
| 330 | #if defined _WIN32 && !defined __CYGWIN__
|
|---|
| 331 | /* MSVC 14 defines names for many error codes in the range 100..140,
|
|---|
| 332 | but _sys_errlist contains strings only for the error codes
|
|---|
| 333 | < _sys_nerr = 43. */
|
|---|
| 334 | if (ret == EINVAL)
|
|---|
| 335 | {
|
|---|
| 336 | const char *errmsg;
|
|---|
| 337 |
|
|---|
| 338 | switch (errnum)
|
|---|
| 339 | {
|
|---|
| 340 | case 100 /* EADDRINUSE */:
|
|---|
| 341 | errmsg = "Address already in use";
|
|---|
| 342 | break;
|
|---|
| 343 | case 101 /* EADDRNOTAVAIL */:
|
|---|
| 344 | errmsg = "Cannot assign requested address";
|
|---|
| 345 | break;
|
|---|
| 346 | case 102 /* EAFNOSUPPORT */:
|
|---|
| 347 | errmsg = "Address family not supported by protocol";
|
|---|
| 348 | break;
|
|---|
| 349 | case 103 /* EALREADY */:
|
|---|
| 350 | errmsg = "Operation already in progress";
|
|---|
| 351 | break;
|
|---|
| 352 | case 105 /* ECANCELED */:
|
|---|
| 353 | errmsg = "Operation canceled";
|
|---|
| 354 | break;
|
|---|
| 355 | case 106 /* ECONNABORTED */:
|
|---|
| 356 | errmsg = "Software caused connection abort";
|
|---|
| 357 | break;
|
|---|
| 358 | case 107 /* ECONNREFUSED */:
|
|---|
| 359 | errmsg = "Connection refused";
|
|---|
| 360 | break;
|
|---|
| 361 | case 108 /* ECONNRESET */:
|
|---|
| 362 | errmsg = "Connection reset by peer";
|
|---|
| 363 | break;
|
|---|
| 364 | case 109 /* EDESTADDRREQ */:
|
|---|
| 365 | errmsg = "Destination address required";
|
|---|
| 366 | break;
|
|---|
| 367 | case 110 /* EHOSTUNREACH */:
|
|---|
| 368 | errmsg = "No route to host";
|
|---|
| 369 | break;
|
|---|
| 370 | case 112 /* EINPROGRESS */:
|
|---|
| 371 | errmsg = "Operation now in progress";
|
|---|
| 372 | break;
|
|---|
| 373 | case 113 /* EISCONN */:
|
|---|
| 374 | errmsg = "Transport endpoint is already connected";
|
|---|
| 375 | break;
|
|---|
| 376 | case 114 /* ELOOP */:
|
|---|
| 377 | errmsg = "Too many levels of symbolic links";
|
|---|
| 378 | break;
|
|---|
| 379 | case 115 /* EMSGSIZE */:
|
|---|
| 380 | errmsg = "Message too long";
|
|---|
| 381 | break;
|
|---|
| 382 | case 116 /* ENETDOWN */:
|
|---|
| 383 | errmsg = "Network is down";
|
|---|
| 384 | break;
|
|---|
| 385 | case 117 /* ENETRESET */:
|
|---|
| 386 | errmsg = "Network dropped connection on reset";
|
|---|
| 387 | break;
|
|---|
| 388 | case 118 /* ENETUNREACH */:
|
|---|
| 389 | errmsg = "Network is unreachable";
|
|---|
| 390 | break;
|
|---|
| 391 | case 119 /* ENOBUFS */:
|
|---|
| 392 | errmsg = "No buffer space available";
|
|---|
| 393 | break;
|
|---|
| 394 | case 123 /* ENOPROTOOPT */:
|
|---|
| 395 | errmsg = "Protocol not available";
|
|---|
| 396 | break;
|
|---|
| 397 | case 126 /* ENOTCONN */:
|
|---|
| 398 | errmsg = "Transport endpoint is not connected";
|
|---|
| 399 | break;
|
|---|
| 400 | case 128 /* ENOTSOCK */:
|
|---|
| 401 | errmsg = "Socket operation on non-socket";
|
|---|
| 402 | break;
|
|---|
| 403 | case 129 /* ENOTSUP */:
|
|---|
| 404 | errmsg = "Not supported";
|
|---|
| 405 | break;
|
|---|
| 406 | case 130 /* EOPNOTSUPP */:
|
|---|
| 407 | errmsg = "Operation not supported";
|
|---|
| 408 | break;
|
|---|
| 409 | case 132 /* EOVERFLOW */:
|
|---|
| 410 | errmsg = "Value too large for defined data type";
|
|---|
| 411 | break;
|
|---|
| 412 | case 133 /* EOWNERDEAD */:
|
|---|
| 413 | errmsg = "Owner died";
|
|---|
| 414 | break;
|
|---|
| 415 | case 134 /* EPROTO */:
|
|---|
| 416 | errmsg = "Protocol error";
|
|---|
| 417 | break;
|
|---|
| 418 | case 135 /* EPROTONOSUPPORT */:
|
|---|
| 419 | errmsg = "Protocol not supported";
|
|---|
| 420 | break;
|
|---|
| 421 | case 136 /* EPROTOTYPE */:
|
|---|
| 422 | errmsg = "Protocol wrong type for socket";
|
|---|
| 423 | break;
|
|---|
| 424 | case 138 /* ETIMEDOUT */:
|
|---|
| 425 | errmsg = "Connection timed out";
|
|---|
| 426 | break;
|
|---|
| 427 | case 140 /* EWOULDBLOCK */:
|
|---|
| 428 | errmsg = "Operation would block";
|
|---|
| 429 | break;
|
|---|
| 430 | default:
|
|---|
| 431 | errmsg = NULL;
|
|---|
| 432 | break;
|
|---|
| 433 | }
|
|---|
| 434 | if (errmsg != NULL)
|
|---|
| 435 | ret = safe_copy (buf, buflen, errmsg);
|
|---|
| 436 | }
|
|---|
| 437 | #endif
|
|---|
| 438 |
|
|---|
| 439 | if (ret == EINVAL && !*buf)
|
|---|
| 440 | {
|
|---|
| 441 | #if defined __HAIKU__
|
|---|
| 442 | /* For consistency with perror(). */
|
|---|
| 443 | snprintf (buf, buflen, "Unknown Application Error (%d)", errnum);
|
|---|
| 444 | #else
|
|---|
| 445 | snprintf (buf, buflen, "Unknown error %d", errnum);
|
|---|
| 446 | #endif
|
|---|
| 447 | }
|
|---|
| 448 |
|
|---|
| 449 | errno = saved_errno;
|
|---|
| 450 | return ret;
|
|---|
| 451 | }
|
|---|
| 452 | }
|
|---|
