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-rw-r--r--coccinelle/safe_fclose.cocci27
-rw-r--r--src/basic/util.c27
-rw-r--r--src/basic/util.h8
-rw-r--r--src/bootchart/bootchart.c5
-rw-r--r--src/core/main.c21
-rw-r--r--src/core/mount.c5
-rw-r--r--src/core/swap.c5
-rw-r--r--src/dbus1-generator/dbus1-generator.c3
-rw-r--r--src/journal-remote/journal-gatewayd.c3
-rw-r--r--src/journal/coredump.c3
-rw-r--r--src/journal/stacktrace.c6
-rw-r--r--src/libsystemd/sd-bus/bus-introspect.c3
-rw-r--r--src/libsystemd/sd-hwdb/sd-hwdb.c3
-rw-r--r--src/shared/pager.c9
14 files changed, 79 insertions, 49 deletions
diff --git a/coccinelle/safe_fclose.cocci b/coccinelle/safe_fclose.cocci
new file mode 100644
index 0000000000..6961cd0164
--- /dev/null
+++ b/coccinelle/safe_fclose.cocci
@@ -0,0 +1,27 @@
+@@
+expression p;
+@@
+- if (p) {
+- fclose(p);
+- p = NULL;
+- }
++ p = safe_fclose(p);
+@@
+expression p;
+@@
+- if (p)
+- fclose(p);
+- p = NULL;
++ p = safe_fclose(p);
+@@
+expression p;
+@@
+- fclose(p);
+- p = NULL;
++ p = safe_fclose(p);
+@@
+expression p;
+@@
+- if (p)
+- fclose(p);
++ safe_fclose(p);
diff --git a/src/basic/util.c b/src/basic/util.c
index 3e41e6ad41..f7b2edf88c 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -327,6 +327,33 @@ void close_many(const int fds[], unsigned n_fd) {
safe_close(fds[i]);
}
+int fclose_nointr(FILE *f) {
+ assert(f);
+
+ /* Same as close_nointr(), but for fclose() */
+
+ if (fclose(f) == 0)
+ return 0;
+
+ if (errno == EINTR)
+ return 0;
+
+ return -errno;
+}
+
+FILE* safe_fclose(FILE *f) {
+
+ /* Same as safe_close(), but for fclose() */
+
+ if (f) {
+ PROTECT_ERRNO;
+
+ assert_se(fclose_nointr(f) != EBADF);
+ }
+
+ return NULL;
+}
+
int unlink_noerrno(const char *path) {
PROTECT_ERRNO;
int r;
diff --git a/src/basic/util.h b/src/basic/util.h
index 0fafebd52d..48567756b9 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -149,6 +149,9 @@ void safe_close_pair(int p[]);
void close_many(const int fds[], unsigned n_fd);
+int fclose_nointr(FILE *f);
+FILE* safe_fclose(FILE *f);
+
int parse_size(const char *t, off_t base, off_t *size);
int parse_boolean(const char *v) _pure_;
@@ -514,7 +517,10 @@ static inline void close_pairp(int (*p)[2]) {
safe_close_pair(*p);
}
-DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose);
+static inline void fclosep(FILE **f) {
+ safe_fclose(*f);
+}
+
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index e61b58b5e5..14b630c6f9 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -458,10 +458,7 @@ int main(int argc, char *argv[]) {
ps = ps->next_ps;
ps->schedstat = safe_close(ps->schedstat);
ps->sched = safe_close(ps->sched);
- if (ps->smaps) {
- fclose(ps->smaps);
- ps->smaps = NULL;
- }
+ ps->smaps = safe_fclose(ps->smaps);
}
if (!of) {
diff --git a/src/core/main.c b/src/core/main.c
index 9aaf244e71..6577a06621 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -918,8 +918,7 @@ static int parse_argv(int argc, char *argv[]) {
if (!f)
return log_error_errno(errno, "Failed to open serialization fd: %m");
- if (arg_serialization)
- fclose(arg_serialization);
+ safe_fclose(arg_serialization);
arg_serialization = f;
@@ -1059,8 +1058,7 @@ static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching
fail:
fdset_free(fds);
- if (f)
- fclose(f);
+ safe_fclose(f);
return r;
}
@@ -1678,10 +1676,7 @@ int main(int argc, char *argv[]) {
fdset_free(fds);
fds = NULL;
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
if (queue_default_job) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
@@ -1923,10 +1918,7 @@ finish:
* getopt() in argv[], and some cleanups in envp[],
* but let's hope that doesn't matter.) */
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
if (fds) {
fdset_free(fds);
@@ -1966,10 +1958,7 @@ finish:
log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m");
}
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
if (fds) {
fdset_free(fds);
diff --git a/src/core/mount.c b/src/core/mount.c
index 83746ca412..1f02aa5566 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1540,10 +1540,7 @@ static void mount_shutdown(Manager *m) {
m->mount_event_source = sd_event_source_unref(m->mount_event_source);
m->mount_utab_event_source = sd_event_source_unref(m->mount_utab_event_source);
- if (m->proc_self_mountinfo) {
- fclose(m->proc_self_mountinfo);
- m->proc_self_mountinfo = NULL;
- }
+ m->proc_self_mountinfo = safe_fclose(m->proc_self_mountinfo);
m->utab_inotify_fd = safe_close(m->utab_inotify_fd);
}
diff --git a/src/core/swap.c b/src/core/swap.c
index a26bc58cfc..311ce7ee04 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -1252,10 +1252,7 @@ static void swap_shutdown(Manager *m) {
m->swap_event_source = sd_event_source_unref(m->swap_event_source);
- if (m->proc_swaps) {
- fclose(m->proc_swaps);
- m->proc_swaps = NULL;
- }
+ m->proc_swaps = safe_fclose(m->proc_swaps);
hashmap_free(m->swaps_by_devnode);
m->swaps_by_devnode = NULL;
diff --git a/src/dbus1-generator/dbus1-generator.c b/src/dbus1-generator/dbus1-generator.c
index 4980fccc31..7bbec5467e 100644
--- a/src/dbus1-generator/dbus1-generator.c
+++ b/src/dbus1-generator/dbus1-generator.c
@@ -103,8 +103,7 @@ static int create_dbus_files(
if (r < 0)
return log_error_errno(r, "Failed to write %s: %m", a);
- fclose(f);
- f = NULL;
+ f = safe_fclose(f);
service = s;
}
diff --git a/src/journal-remote/journal-gatewayd.c b/src/journal-remote/journal-gatewayd.c
index bb762c8832..4e5572db0b 100644
--- a/src/journal-remote/journal-gatewayd.c
+++ b/src/journal-remote/journal-gatewayd.c
@@ -105,8 +105,7 @@ static void request_meta_free(
sd_journal_close(m->journal);
- if (m->tmp)
- fclose(m->tmp);
+ safe_fclose(m->tmp);
free(m->cursor);
free(m);
diff --git a/src/journal/coredump.c b/src/journal/coredump.c
index 62483a2a05..7d94b145c9 100644
--- a/src/journal/coredump.c
+++ b/src/journal/coredump.c
@@ -512,8 +512,7 @@ static int compose_open_fds(pid_t pid, char **open_fds) {
}
errno = 0;
- fclose(stream);
- stream = NULL;
+ stream = safe_fclose(stream);
if (errno != 0)
return -errno;
diff --git a/src/journal/stacktrace.c b/src/journal/stacktrace.c
index 706c08eac7..98a54ff269 100644
--- a/src/journal/stacktrace.c
+++ b/src/journal/stacktrace.c
@@ -177,8 +177,7 @@ int coredump_make_stack_trace(int fd, const char *executable, char **ret) {
goto finish;
}
- fclose(c.f);
- c.f = NULL;
+ c.f = safe_fclose(c.f);
*ret = buf;
buf = NULL;
@@ -192,8 +191,7 @@ finish:
if (c.elf)
elf_end(c.elf);
- if (c.f)
- fclose(c.f);
+ safe_fclose(c.f);
free(buf);
diff --git a/src/libsystemd/sd-bus/bus-introspect.c b/src/libsystemd/sd-bus/bus-introspect.c
index 3107d00092..3149a56397 100644
--- a/src/libsystemd/sd-bus/bus-introspect.c
+++ b/src/libsystemd/sd-bus/bus-introspect.c
@@ -204,8 +204,7 @@ int introspect_finish(struct introspect *i, sd_bus *bus, sd_bus_message *m, sd_b
void introspect_free(struct introspect *i) {
assert(i);
- if (i->f)
- fclose(i->f);
+ safe_fclose(i->f);
free(i->introspection);
zero(*i);
diff --git a/src/libsystemd/sd-hwdb/sd-hwdb.c b/src/libsystemd/sd-hwdb/sd-hwdb.c
index 06c98314e8..f0316be659 100644
--- a/src/libsystemd/sd-hwdb/sd-hwdb.c
+++ b/src/libsystemd/sd-hwdb/sd-hwdb.c
@@ -344,8 +344,7 @@ _public_ sd_hwdb *sd_hwdb_unref(sd_hwdb *hwdb) {
if (hwdb && REFCNT_DEC(hwdb->n_ref) == 0) {
if (hwdb->map)
munmap((void *)hwdb->map, hwdb->st.st_size);
- if (hwdb->f)
- fclose(hwdb->f);
+ safe_fclose(hwdb->f);
free(hwdb->modalias);
ordered_hashmap_free(hwdb->properties);
free(hwdb);
diff --git a/src/shared/pager.c b/src/shared/pager.c
index 55fd5cb79e..479a9d5e8d 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -151,13 +151,10 @@ void pager_close(void) {
return;
/* Inform pager that we are done */
- fclose(stdout);
- stdout = NULL;
+ stdout = safe_fclose(stdout);
+ stderr = safe_fclose(stderr);
- fclose(stderr);
- stderr = NULL;
-
- kill(pager_pid, SIGCONT);
+ (void) kill(pager_pid, SIGCONT);
(void) wait_for_terminate(pager_pid, NULL);
pager_pid = 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-09 21:42:29 +0000