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socket/sockaddr_un_set.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Set the sun_path member of struct sockaddr_un. Copyright (C) 2022-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C 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 2.1 of the License, or (at your option) any later version. The GNU C 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 the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <errno.h> #include <string.h> #include <sys/socket.h> #include <sys/un.h> int __sockaddr_un_set (struct sockaddr_un *addr, const char *pathname) { size_t name_length = strlen (pathname); /* The kernel supports names of exactly sizeof (addr->sun_path) bytes, without a null terminator, but userspace does not; see the SUN_LEN macro. */ if (name_length >= sizeof (addr->sun_path)) { __set_errno (EINVAL); /* Error code used by the kernel. */ return -1; } addr->sun_family = AF_UNIX; memcpy (addr->sun_path, pathname, name_length + 1); return 0; }