diff options
Diffstat (limited to 'lib/link.c')
| -rw-r--r-- | lib/link.c | 18 |
1 files changed, 13 insertions, 5 deletions
@@ -1,6 +1,6 @@ /* Emulate link on platforms that lack it, namely native Windows platforms. - Copyright (C) 2009-2020 Free Software Foundation, Inc. + Copyright (C) 2009-2021 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 @@ -85,16 +85,24 @@ link (const char *file1, const char *file2) errno = EPERM; return -1; } - /* Reject trailing slashes on non-directories; mingw does not + /* Reject trailing slashes on non-directories; native Windows does not support hard-linking directories. */ if ((len1 && (file1[len1 - 1] == '/' || file1[len1 - 1] == '\\')) || (len2 && (file2[len2 - 1] == '/' || file2[len2 - 1] == '\\'))) { + /* If stat() fails, then link() should fail for the same reason. */ struct stat st; - if (stat (file1, &st) == 0 && S_ISDIR (st.st_mode)) - errno = EPERM; - else + if (stat (file1, &st)) + { + if (errno == EOVERFLOW) + /* It's surely a file, not a directory (see stat-w32.c). */ + errno = ENOTDIR; + return -1; + } + if (!S_ISDIR (st.st_mode)) errno = ENOTDIR; + else + errno = EPERM; return -1; } /* CreateHardLink("b/.","a",NULL) creates file "b", so we must check |