diff options
Diffstat (limited to 'shared/nm-utils/nm-errno.c')
| -rw-r--r-- | shared/nm-utils/nm-errno.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/shared/nm-utils/nm-errno.c b/shared/nm-utils/nm-errno.c deleted file mode 100644 index 30eb9a8e..00000000 --- a/shared/nm-utils/nm-errno.c +++ /dev/null @@ -1,198 +0,0 @@ -/* NetworkManager -- Network link manager - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301 USA. - * - * Copyright 2018 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include "nm-errno.h" - -#include <pthread.h> - -/*****************************************************************************/ - -NM_UTILS_LOOKUP_STR_DEFINE_STATIC (_geterror, -#if 0 - enum _NMErrno, -#else - int, -#endif - NM_UTILS_LOOKUP_DEFAULT (NULL), - - NM_UTILS_LOOKUP_STR_ITEM (NME_ERRNO_SUCCESS, "NME_ERRNO_SUCCESS"), - NM_UTILS_LOOKUP_STR_ITEM (NME_ERRNO_OUT_OF_RANGE, "NME_ERRNO_OUT_OF_RANGE"), - - NM_UTILS_LOOKUP_STR_ITEM (NME_UNSPEC, "NME_UNSPEC"), - NM_UTILS_LOOKUP_STR_ITEM (NME_BUG, "NME_BUG"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NATIVE_ERRNO, "NME_NATIVE_ERRNO"), - - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_ATTRSIZE, "NME_NL_ATTRSIZE"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_BAD_SOCK, "NME_NL_BAD_SOCK"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_DUMP_INTR, "NME_NL_DUMP_INTR"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_MSG_OVERFLOW, "NME_NL_MSG_OVERFLOW"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_MSG_TOOSHORT, "NME_NL_MSG_TOOSHORT"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_MSG_TRUNC, "NME_NL_MSG_TRUNC"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_SEQ_MISMATCH, "NME_NL_SEQ_MISMATCH"), - NM_UTILS_LOOKUP_STR_ITEM (NME_NL_NOADDR, "NME_NL_NOADDR"), - - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_NOT_FOUND, "not-found"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_EXISTS, "exists"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_WRONG_TYPE, "wrong-type"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_NOT_SLAVE, "not-slave"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_NO_FIRMWARE, "no-firmware"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_OPNOTSUPP, "not-supported"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_NETLINK, "netlink"), - NM_UTILS_LOOKUP_STR_ITEM (NME_PL_CANT_SET_MTU, "cant-set-mtu"), - - NM_UTILS_LOOKUP_ITEM_IGNORE (_NM_ERRNO_MININT), - NM_UTILS_LOOKUP_ITEM_IGNORE (_NM_ERRNO_RESERVED_LAST_PLUS_1), -); - -/** - * nm_strerror(): - * @nmerr: the NetworkManager specific errno to be converted - * to string. - * - * NetworkManager specific error numbers reserve a range in "errno.h" with - * our own defines. For numbers that don't fall into this range, the numbers - * are identical to the common error numbers. - * - * Idential to strerror(), g_strerror(), nm_strerror_native() for error numbers - * that are not in the reserved range of NetworkManager specific errors. - * - * Returns: (transfer none): the string representation of the error number. - */ -const char * -nm_strerror (int nmerr) -{ - const char *s; - - nmerr = nm_errno (nmerr); - - if (nmerr >= _NM_ERRNO_RESERVED_FIRST) { - s = _geterror (nmerr); - if (s) - return s; - } - return nm_strerror_native (nmerr); -} - -/*****************************************************************************/ - -/** - * nm_strerror_native_r: - * @errsv: the errno to convert to string. - * @buf: the output buffer where to write the string to. - * @buf_size: the length of buffer. - * - * This is like strerror_r(), with one difference: depending on the - * locale, the returned string is guaranteed to be valid UTF-8. - * Also, there is some confusion as to whether to use glibc's - * strerror_r() or the POXIX/XSI variant. This is abstracted - * by the function. - * - * Note that the returned buffer may also be a statically allocated - * buffer, and not the input buffer @buf. Consequently, the returned - * string may be longer than @buf_size. - * - * Returns: (transfer none): a NUL terminated error message. This is either a static - * string (that is never freed), or the provided @buf argumnt. - */ -const char * -nm_strerror_native_r (int errsv, char *buf, gsize buf_size) -{ - char *buf2; - - nm_assert (buf); - nm_assert (buf_size > 0); - -#if (_POSIX_C_SOURCE >= 200112L) && ! _GNU_SOURCE - /* XSI-compliant */ - { - int errno_saved = errno; - - if (strerror_r (errsv, buf, buf_size) != 0) { - g_snprintf (buf, buf_size, "Unspecified errno %d", errsv); - errno = errno_saved; - } - buf2 = buf; - } -#else - /* GNU-specific */ - buf2 = strerror_r (errsv, buf, buf_size); -#endif - - /* like g_strerror(), ensure that the error message is UTF-8. */ - if ( !g_get_charset (NULL) - && !g_utf8_validate (buf2, -1, NULL)) { - gs_free char *msg = NULL; - - msg = g_locale_to_utf8 (buf2, -1, NULL, NULL, NULL); - if (msg) { - g_strlcpy (buf, msg, buf_size); - buf2 = buf; - } - } - - return buf2; -} - -/** - * nm_strerror_native: - * @errsv: the errno integer from <errno.h> - * - * Like strerror(), but strerror() is not thread-safe and not guaranteed - * to be UTF-8. - * - * g_strerror() is a thread-safe variant of strerror(), however it caches - * all returned strings in a dictionary. That means, using this on untrusted - * error numbers can result in this cache to grow without limits. - * - * Instead, return a tread-local buffer. This way, it's thread-safe. - * - * There is a downside to this: subsequent calls of nm_strerror_native() - * overwrite the error message. - * - * Returns: (transfer none): the text representation of the error number. - */ -const char * -nm_strerror_native (int errsv) -{ - static _nm_thread_local char *buf_static = NULL; - char *buf; - - buf = buf_static; - if (G_UNLIKELY (!buf)) { - int errno_saved = errno; - pthread_key_t key; - - buf = g_malloc (NM_STRERROR_BUFSIZE); - buf_static = buf; - - if ( pthread_key_create (&key, g_free) != 0 - || pthread_setspecific (key, buf) != 0) { - /* Failure. We will leak the buffer when the thread exits. - * - * Nothing we can do about it really. For Debug builds we fail with an assertion. */ - nm_assert_not_reached (); - } - errno = errno_saved; - } - - return nm_strerror_native_r (errsv, buf, NM_STRERROR_BUFSIZE); -} |