From: Joseph Myers Date: Thu, 22 Aug 2024 11:25:14 +0000 (+0000) Subject: Test mkdirat use of mode argument X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=55cd51d971b84fbb2cc0fe8140cc8581f98582c7;p=glibc.git Test mkdirat use of mode argument The test io/tst-mkdirat doesn't verify the permissions on the created directory (thus, doesn't verify at all anything about how mkdirat uses the mode argument). Add checks of this to the existing test. Tested for x86_64. --- diff --git a/io/tst-mkdirat.c b/io/tst-mkdirat.c index 605e51ef1e..b97bc3ca6d 100644 --- a/io/tst-mkdirat.c +++ b/io/tst-mkdirat.c @@ -53,6 +53,10 @@ prepare (void) static int do_test (void) { + /* Find the current umask. */ + mode_t mask = umask (022); + umask (mask); + /* fdopendir takes over the descriptor, make a copy. */ int dupfd = dup (dir_fd); if (dupfd == -1) @@ -107,6 +111,13 @@ do_test (void) puts ("mkdirat did not create a directory"); return 1; } + if ((st1.st_mode & 01777) != (~mask & 0777)) + { + printf ("mkdirat created directory with wrong mode %o, expected %o\n", + (unsigned int) (st1.st_mode & 01777), + (unsigned int) (~mask & 0777)); + return 1; + } dupfd = dup (dir_fd); if (dupfd == -1) @@ -156,6 +167,37 @@ do_test (void) return 1; } + /* Test again with a different mode. */ + umask (0); + e = mkdirat (dir_fd, "some-dir", 01755); + umask (mask); + if (e == -1) + { + puts ("directory creation (different mode) failed"); + return 1; + } + if (fstatat64 (dir_fd, "some-dir", &st1, 0) != 0) + { + puts ("fstat64 (different mode) failed"); + return 1; + } + if (!S_ISDIR (st1.st_mode)) + { + puts ("mkdirat (different mode) did not create a directory"); + return 1; + } + if ((st1.st_mode & 01777) != 01755) + { + printf ("mkdirat (different mode) created directory with wrong mode %o\n", + (unsigned int) (st1.st_mode & 01777)); + return 1; + } + if (unlinkat (dir_fd, "some-dir", AT_REMOVEDIR) != 0) + { + puts ("unlinkat (different mode) failed"); + return 1; + } + close (dir_fd); return 0;