From 51fac37bb20c9440a9a4e0a20846c139364d6d13 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 25 Apr 2024 04:54:52 +0200 Subject: Adding upstream version 255.5. Signed-off-by: Daniel Baumann --- src/basic/stat-util.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) (limited to 'src/basic/stat-util.c') diff --git a/src/basic/stat-util.c b/src/basic/stat-util.c index c54374b..581370d 100644 --- a/src/basic/stat-util.c +++ b/src/basic/stat-util.c @@ -262,11 +262,31 @@ int path_is_network_fs(const char *path) { return is_network_fs(&s); } +int stat_verify_linked(const struct stat *st) { + assert(st); + + if (st->st_nlink <= 0) + return -EIDRM; /* recognizable error. */ + + return 0; +} + +int fd_verify_linked(int fd) { + struct stat st; + + assert(fd >= 0); + + if (fstat(fd, &st) < 0) + return -errno; + + return stat_verify_linked(&st); +} + int stat_verify_regular(const struct stat *st) { assert(st); - /* Checks whether the specified stat() structure refers to a regular file. If not returns an appropriate error - * code. */ + /* Checks whether the specified stat() structure refers to a regular file. If not returns an + * appropriate error code. */ if (S_ISDIR(st->st_mode)) return -EISDIR; @@ -470,7 +490,7 @@ int xstatfsat(int dir_fd, const char *path, struct statfs *ret) { assert(dir_fd >= 0 || dir_fd == AT_FDCWD); assert(ret); - fd = xopenat(dir_fd, path, O_PATH|O_CLOEXEC|O_NOCTTY, /* xopen_flags = */ 0, /* mode = */ 0); + fd = xopenat(dir_fd, path, O_PATH|O_CLOEXEC|O_NOCTTY); if (fd < 0) return fd; -- cgit v1.2.3