1 /* Stub for symlink(). 2 Copyright (C) 2009-2021 Free Software Foundation, Inc. 3 4 This file is free software: you can redistribute it and/or modify 5 it under the terms of the GNU Lesser General Public License as 6 published by the Free Software Foundation; either version 3 of the 7 License, or (at your option) any later version. 8 9 This file is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 #include <config.h> 18 19 /* Specification. */ 20 #include <unistd.h> 21 22 #include <errno.h> 23 #include <string.h> 24 #include <sys/stat.h> 25 26 27 #if HAVE_SYMLINK 28 29 # undef symlink 30 31 /* Create a symlink, but reject trailing slash. */ 32 int 33 rpl_symlink (char const *contents, char const *name) /* */ 34 { 35 size_t len = strlen (name); 36 if (len && name[len - 1] == '/') 37 { 38 struct stat st; 39 if (lstat (name, &st) == 0 || errno == EOVERFLOW) 40 errno = EEXIST; 41 return -1; 42 } 43 return symlink (contents, name); 44 } 45 46 #else /* !HAVE_SYMLINK */ 47 48 /* The system does not support symlinks. */ 49 int 50 symlink (_GL_UNUSED char const *contents, /* */ 51 _GL_UNUSED char const *name) 52 { 53 errno = ENOSYS; 54 return -1; 55 } 56 57 #endif /* !HAVE_SYMLINK */