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tree-wide: use __fsetlocking() instead of fxyz_unlocked()

Browse Source 
Let's replace usage of fputc_unlocked() and friends by __fsetlocking(f,
FSETLOCKING_BYCALLER). This turns off locking for the entire FILE*,
instead of doing individual per-call decision whether to use normal
calls or _unlocked() calls.

This has various benefits:

1. It's easier to read and easier not to forget

2. It's more comprehensive, as fprintf() and friends are covered too
   (as these functions have no _unlocked() counterpart)

3. Philosophically, it's a bit more correct, because it's more a
   property of the file handle really whether we ever pass it on to another
   thread, not of the operations we then apply to it.

This patch reworks all pieces of codes that so far used fxyz_unlocked()
calls to use __fsetlocking() instead. It also reworks all places that
use open_memstream(), i.e. use stdio FILE* for string manipulations.

Note that this in some way a revert of 4b61c87511.
This commit is contained in:
Lennart Poettering 2017-12-11 19:50:30 +01:00
parent 966c04cf01
commit 0d53667334
26 changed files with 287 additions and 200 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/basic/calendarspec.c
View File

@ -24,6 +24,7 @@
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
@ -261,19 +262,19 @@ static void format_weekdays(FILE *f, const CalendarSpec *c) {
if (l < 0) {
if (need_comma)
fputc_unlocked(',', f);
fputc(',', f);
else
need_comma = true;
fputs_unlocked(days[x], f);
fputs(days[x], f);
l = x;
}
} else if (l >= 0) {
if (x > l + 1) {
fputs_unlocked(x > l + 2 ? ".." : ",", f);
fputs_unlocked(days[x-1], f);
fputs(x > l + 2 ? ".." : ",", f);
fputs(days[x-1], f);
}
l = -1;
@ -281,8 +282,8 @@ static void format_weekdays(FILE *f, const CalendarSpec *c) {
}
if (l >= 0 && x > l + 1) {
fputs_unlocked(x > l + 2 ? ".." : ",", f);
fputs_unlocked(days[x-1], f);
fputs(x > l + 2 ? ".." : ",", f);
fputs(days[x-1], f);
}
}
@ -292,12 +293,12 @@ static void format_chain(FILE *f, int space, const CalendarComponent *c, bool us
assert(f);
if (!c) {
fputc_unlocked('*', f);
fputc('*', f);
return;
}
if (usec && c->start == 0 && c->repeat == USEC_PER_SEC && !c->next) {
fputc_unlocked('*', f);
fputc('*', f);
return;
}
@ -318,7 +319,7 @@ static void format_chain(FILE *f, int space, const CalendarComponent *c, bool us
fprintf(f, ".%06i", c->repeat % d);
if (c->next) {
fputc_unlocked(',', f);
fputc(',', f);
format_chain(f, space, c->next, usec);
}
}
@ -336,28 +337,30 @@ int calendar_spec_to_string(const CalendarSpec *c, char **p) {
if (!f)
return -ENOMEM;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
if (c->weekdays_bits > 0 && c->weekdays_bits <= BITS_WEEKDAYS) {
format_weekdays(f, c);
fputc_unlocked(' ', f);
fputc(' ', f);
}
format_chain(f, 4, c->year, false);
fputc_unlocked('-', f);
fputc('-', f);
format_chain(f, 2, c->month, false);
fputc_unlocked(c->end_of_month ? '~' : '-', f);
fputc(c->end_of_month ? '~' : '-', f);
format_chain(f, 2, c->day, false);
fputc_unlocked(' ', f);
fputc(' ', f);
format_chain(f, 2, c->hour, false);
fputc_unlocked(':', f);
fputc(':', f);
format_chain(f, 2, c->minute, false);
fputc_unlocked(':', f);
fputc(':', f);
format_chain(f, 2, c->microsecond, true);
if (c->utc)
fputs_unlocked(" UTC", f);
fputs(" UTC", f);
else if (c->timezone != NULL) {
fputc_unlocked(' ', f);
fputs_unlocked(c->timezone, f);
fputc(' ', f);
fputs(c->timezone, f);
} else if (IN_SET(c->dst, 0, 1)) {
/* If daylight saving is explicitly on or off, let's show the used timezone. */
@ -365,8 +368,8 @@ int calendar_spec_to_string(const CalendarSpec *c, char **p) {
tzset();
if (!isempty(tzname[c->dst])) {
fputc_unlocked(' ', f);
fputs_unlocked(tzname[c->dst], f);
fputc(' ', f);
fputs(tzname[c->dst], f);
}
}

23
src/basic/string-util.c
View File

@ -22,6 +22,7 @@
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
@ -669,10 +670,10 @@ char *strip_tab_ansi(char **ibuf, size_t *_isz) {
if (!f)
return NULL;
/* Note we use the _unlocked() stdio variants on f for performance
* reasons. It's safe to do so since we created f here and it
* doesn't leave our scope.
*/
/* Note we turn off internal locking on f for performance reasons. It's safe to do so since we created f here
* and it doesn't leave our scope. */
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
for (i = *ibuf; i < *ibuf + isz + 1; i++) {
@ -684,21 +685,21 @@ char *strip_tab_ansi(char **ibuf, size_t *_isz) {
else if (*i == '\x1B')
state = STATE_ESCAPE;
else if (*i == '\t')
fputs_unlocked(" ", f);
fputs(" ", f);
else
fputc_unlocked(*i, f);
fputc(*i, f);
break;
case STATE_ESCAPE:
if (i >= *ibuf + isz) { /* EOT */
fputc_unlocked('\x1B', f);
fputc('\x1B', f);
break;
} else if (*i == '[') {
state = STATE_BRACKET;
begin = i + 1;
} else {
fputc_unlocked('\x1B', f);
fputc_unlocked(*i, f);
fputc('\x1B', f);
fputc(*i, f);
state = STATE_OTHER;
}
@ -708,8 +709,8 @@ char *strip_tab_ansi(char **ibuf, size_t *_isz) {
if (i >= *ibuf + isz || /* EOT */
(!(*i >= '0' && *i <= '9') && !IN_SET(*i, ';', 'm'))) {
fputc_unlocked('\x1B', f);
fputc_unlocked('[', f);
fputc('\x1B', f);
fputc('[', f);
state = STATE_OTHER;
i = begin-1;
} else if (*i == 'm')

3
src/busctl/busctl.c
View File

@ -19,6 +19,7 @@
***/
#include <getopt.h>
#include <stdio_ext.h>
#include "sd-bus.h"
@ -949,6 +950,8 @@ static int introspect(sd_bus *bus, char **argv) {
if (!mf)
return log_oom();
(void) __fsetlocking(mf, FSETLOCKING_BYCALLER);
r = format_cmdline(reply, mf, false);
if (r < 0)
return bus_log_parse_error(r);

27
src/core/dbus-cgroup.c
View File

@ -19,6 +19,7 @@
***/
#include <arpa/inet.h>
#include <stdio_ext.h>
#include "af-list.h"
#include "alloc-util.h"
@ -687,6 +688,8 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fprintf(f, "%s=\n", name);
LIST_FOREACH(device_limits, a, c->io_device_limits)
if (a->limits[iol_type] != cgroup_io_limit_defaults[iol_type])
@ -764,7 +767,9 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
fputs_unlocked("IODeviceWeight=\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("IODeviceWeight=\n", f);
LIST_FOREACH(device_weights, a, c->io_device_weights)
fprintf(f, "IODeviceWeight=%s %" PRIu64 "\n", a->path, a->weight);
@ -912,13 +917,15 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
if (read) {
fputs_unlocked("BlockIOReadBandwidth=\n", f);
fputs("BlockIOReadBandwidth=\n", f);
LIST_FOREACH(device_bandwidths, a, c->blockio_device_bandwidths)
if (a->rbps != CGROUP_LIMIT_MAX)
fprintf(f, "BlockIOReadBandwidth=%s %" PRIu64 "\n", a->path, a->rbps);
} else {
fputs_unlocked("BlockIOWriteBandwidth=\n", f);
fputs("BlockIOWriteBandwidth=\n", f);
LIST_FOREACH(device_bandwidths, a, c->blockio_device_bandwidths)
if (a->wbps != CGROUP_LIMIT_MAX)
fprintf(f, "BlockIOWriteBandwidth=%s %" PRIu64 "\n", a->path, a->wbps);
@ -997,7 +1004,9 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
fputs_unlocked("BlockIODeviceWeight=\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("BlockIODeviceWeight=\n", f);
LIST_FOREACH(device_weights, a, c->blockio_device_weights)
fprintf(f, "BlockIODeviceWeight=%s %" PRIu64 "\n", a->path, a->weight);
@ -1229,7 +1238,9 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
fputs_unlocked("DeviceAllow=\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("DeviceAllow=\n", f);
LIST_FOREACH(device_allow, a, c->device_allow)
fprintf(f, "DeviceAllow=%s %s%s%s\n", a->path, a->r ? "r" : "", a->w ? "w" : "", a->m ? "m" : "");
@ -1399,8 +1410,10 @@ int bus_cgroup_set_property(
if (!f)
return -ENOMEM;
fputs_unlocked(name, f);
fputs_unlocked("=\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs(name, f);
fputs("=\n", f);
LIST_FOREACH(items, item, *list) {
char buffer[CONST_MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)];

3
src/core/dbus-execute.c
View File

@ -19,6 +19,7 @@
***/
#include <sys/prctl.h>
#include <stdio_ext.h>
#if HAVE_SECCOMP
#include <seccomp.h>
@ -2202,6 +2203,8 @@ int bus_exec_context_set_transient_property(
if (!f)
return -ENOMEM;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("EnvironmentFile=\n", f);
STRV_FOREACH(i, c->environment_files) {

6
src/core/dbus-service.c
View File

@ -18,6 +18,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio_ext.h>
#include "alloc-util.h"
#include "async.h"
#include "bus-util.h"
@ -313,7 +315,9 @@ static int bus_service_set_transient_property(
if (!f)
return -ENOMEM;
fputs_unlocked("ExecStart=\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("ExecStart=\n", f);
LIST_FOREACH(command, c, s->exec_command[ci]) {
_cleanup_free_ char *a = NULL, *t = NULL;

8
src/core/manager.c
View File

@ -1754,7 +1754,7 @@ int manager_get_dump_string(Manager *m, char **ret) {
if (!f)
return -errno;
__fsetlocking(f, FSETLOCKING_BYCALLER);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
manager_dump(m, f, NULL);
@ -2704,15 +2704,15 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
manager_serialize_uid_refs(m, f);
manager_serialize_gid_refs(m, f);
fputc_unlocked('\n', f);
(void) fputc('\n', f);
HASHMAP_FOREACH_KEY(u, t, m->units, i) {
if (u->id != t)
continue;
/* Start marker */
fputs_unlocked(u->id, f);
fputc_unlocked('\n', f);
fputs(u->id, f);
fputc('\n', f);
r = unit_serialize(u, f, fds, !switching_root);
if (r < 0) {

18
src/core/smack-setup.c
View File

@ -24,6 +24,7 @@
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
@ -243,20 +244,25 @@ static int write_netlabel_rules(const char* srcdir) {
continue;
}
(void) __fsetlocking(policy, FSETLOCKING_BYCALLER);
/* load2 write rules in the kernel require a line buffered stream */
FOREACH_LINE(buf, policy,
log_error_errno(errno, "Failed to read line from %s: %m",
entry->d_name)) {
if (!fputs_unlocked(buf, dst)) {
log_error_errno(errno, "Failed to read line from %s: %m", entry->d_name)) {
int q;
if (!fputs(buf, dst)) {
if (r == 0)
r = -EINVAL;
log_error_errno(errno, "Failed to write line to /sys/fs/smackfs/netlabel");
break;
}
if (fflush(dst)) {
q = fflush_and_check(dst);
if (q < 0) {
if (r == 0)
r = -errno;
log_error_errno(errno, "Failed to flush writes to /sys/fs/smackfs/netlabel: %m");
r = q;
log_error_errno(q, "Failed to flush writes to /sys/fs/smackfs/netlabel: %m");
break;
}
}

7
src/coredump/coredump.c
View File

@ -20,6 +20,7 @@
#include <errno.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <sys/prctl.h>
#include <sys/xattr.h>
#include <unistd.h>
@ -540,6 +541,8 @@ static int compose_open_fds(pid_t pid, char **open_fds) {
if (!stream)
return -ENOMEM;
(void) __fsetlocking(stream, FSETLOCKING_BYCALLER);
FOREACH_DIRENT(dent, proc_fd_dir, return -errno) {
_cleanup_fclose_ FILE *fdinfo = NULL;
_cleanup_free_ char *fdname = NULL;
@ -560,12 +563,12 @@ static int compose_open_fds(pid_t pid, char **open_fds) {
fdinfo = fdopen(fd, "re");
if (!fdinfo) {
close(fd);
safe_close(fd);
continue;
}
FOREACH_LINE(line, fdinfo, break) {
fputs_unlocked(line, stream);
fputs(line, stream);
if (!endswith(line, "\n"))
fputc('\n', stream);
}

5
src/coredump/stacktrace.c
View File

@ -20,6 +20,7 @@
#include <dwarf.h>
#include <elfutils/libdwfl.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "fd-util.h"
@ -108,7 +109,7 @@ static int thread_callback(Dwfl_Thread *thread, void *userdata) {
return DWARF_CB_ABORT;
if (c->n_thread != 0)
fputc_unlocked('\n', c->f);
fputc('\n', c->f);
c->n_frame = 0;
@ -145,6 +146,8 @@ int coredump_make_stack_trace(int fd, const char *executable, char **ret) {
if (!c.f)
return -ENOMEM;
(void) __fsetlocking(c.f, FSETLOCKING_BYCALLER);
elf_version(EV_CURRENT);
c.elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);

11
src/cryptsetup/cryptsetup-generator.c
View File

@ -19,6 +19,7 @@
***/
#include <errno.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "dropin.h"
@ -117,6 +118,8 @@ static int create_disk(
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", p);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fprintf(f,
"# Automatically generated by systemd-cryptsetup-generator\n\n"
"[Unit]\n"
@ -136,7 +139,7 @@ static int create_disk(
if (password) {
if (STR_IN_SET(password, "/dev/urandom", "/dev/random", "/dev/hw_random"))
fputs_unlocked("After=systemd-random-seed.service\n", f);
fputs("After=systemd-random-seed.service\n", f);
else if (!STR_IN_SET(password, "-", "none")) {
_cleanup_free_ char *uu;
@ -168,8 +171,8 @@ static int create_disk(
d, d);
if (swap)
fputs_unlocked("Before=dev-mapper-%i.swap\n",
f);
fputs("Before=dev-mapper-%i.swap\n",
f);
} else
fprintf(f,
"RequiresMountsFor=%s\n",
@ -372,6 +375,8 @@ static int add_crypttab_devices(void) {
return 0;
}
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
if (fstat(fileno(f), &st) < 0) {
log_error_errno(errno, "Failed to stat /etc/crypttab: %m");
return 0;

17
src/fstab-generator/fstab-generator.c
View File

@ -23,6 +23,7 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "fd-util.h"
@ -134,11 +135,13 @@ static int add_swap(
"Failed to create unit file %s: %m",
unit);
fputs_unlocked("# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"
"SourcePath=/etc/fstab\n"
"Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
"[Swap]\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"
"SourcePath=/etc/fstab\n"
"Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
"[Swap]\n", f);
r = write_what(f, what);
if (r < 0)
@ -370,6 +373,8 @@ static int add_mount(
"Failed to create unit file %s: %m",
unit);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fprintf(f,
"# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"
@ -491,6 +496,8 @@ static int add_mount(
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", automount_unit);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fprintf(f,
"# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"

7
src/journal/journal-qrcode.c
View File

@ -22,6 +22,7 @@
#include <qrencode.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include "journal-qrcode.h"
@ -66,11 +67,13 @@ int print_qr_code(
if (!f)
return -ENOMEM;
fputs_unlocked("fss://", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
fputs("fss://", f);
for (i = 0; i < seed_size; i++) {
if (i > 0 && i % 3 == 0)
fputc_unlocked('-', f);
fputc('-', f);
fprintf(f, "%02x", ((uint8_t*) seed)[i]);
}

16
src/libsystemd-network/sd-dhcp-lease.c
View File

@ -22,6 +22,7 @@
#include <arpa/inet.h>
#include <errno.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
@ -876,7 +877,8 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
if (r < 0)
goto fail;
fchmod(fileno(f), 0644);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
"# This is private data. Do not parse.\n");
@ -923,16 +925,16 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
r = sd_dhcp_lease_get_dns(lease, &addresses);
if (r > 0) {
fputs_unlocked("DNS=", f);
fputs("DNS=", f);
serialize_in_addrs(f, addresses, r);
fputs_unlocked("\n", f);
fputs("\n", f);
}
r = sd_dhcp_lease_get_ntp(lease, &addresses);
if (r > 0) {
fputs_unlocked("NTP=", f);
fputs("NTP=", f);
serialize_in_addrs(f, addresses, r);
fputs_unlocked("\n", f);
fputs("\n", f);
}
r = sd_dhcp_lease_get_domainname(lease, &string);
@ -941,9 +943,9 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
r = sd_dhcp_lease_get_search_domains(lease, &search_domains);
if (r > 0) {
fputs_unlocked("DOMAIN_SEARCH_LIST=", f);
fputs("DOMAIN_SEARCH_LIST=", f);
fputstrv(f, search_domains, NULL, NULL);
fputs_unlocked("\n", f);
fputs("\n", f);
}
r = sd_dhcp_lease_get_hostname(lease, &string);

42
src/libsystemd/sd-bus/bus-introspect.c
View File

@ -18,6 +18,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio_ext.h>
#include "bus-internal.h"
#include "bus-introspect.h"
#include "bus-protocol.h"
@ -37,8 +39,10 @@ int introspect_begin(struct introspect *i, bool trusted) {
if (!i->f)
return -ENOMEM;
fputs_unlocked(BUS_INTROSPECT_DOCTYPE
"<node>\n", i->f);
(void) __fsetlocking(i->f, FSETLOCKING_BYCALLER);
fputs(BUS_INTROSPECT_DOCTYPE
"<node>\n", i->f);
return 0;
}
@ -46,12 +50,12 @@ int introspect_begin(struct introspect *i, bool trusted) {
int introspect_write_default_interfaces(struct introspect *i, bool object_manager) {
assert(i);
fputs_unlocked(BUS_INTROSPECT_INTERFACE_PEER
BUS_INTROSPECT_INTERFACE_INTROSPECTABLE
BUS_INTROSPECT_INTERFACE_PROPERTIES, i->f);
fputs(BUS_INTROSPECT_INTERFACE_PEER
BUS_INTROSPECT_INTERFACE_INTROSPECTABLE
BUS_INTROSPECT_INTERFACE_PROPERTIES, i->f);
if (object_manager)
fputs_unlocked(BUS_INTROSPECT_INTERFACE_OBJECT_MANAGER, i->f);
fputs(BUS_INTROSPECT_INTERFACE_OBJECT_MANAGER, i->f);
return 0;
}
@ -77,27 +81,27 @@ int introspect_write_child_nodes(struct introspect *i, Set *s, const char *prefi
static void introspect_write_flags(struct introspect *i, int type, int flags) {
if (flags & SD_BUS_VTABLE_DEPRECATED)
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Deprecated\" value=\"true\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Deprecated\" value=\"true\"/>\n", i->f);
if (type == _SD_BUS_VTABLE_METHOD && (flags & SD_BUS_VTABLE_METHOD_NO_REPLY))
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Method.NoReply\" value=\"true\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Method.NoReply\" value=\"true\"/>\n", i->f);
if (IN_SET(type, _SD_BUS_VTABLE_PROPERTY, _SD_BUS_VTABLE_WRITABLE_PROPERTY)) {
if (flags & SD_BUS_VTABLE_PROPERTY_EXPLICIT)
fputs_unlocked(" <annotation name=\"org.freedesktop.systemd1.Explicit\" value=\"true\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.systemd1.Explicit\" value=\"true\"/>\n", i->f);
if (flags & SD_BUS_VTABLE_PROPERTY_CONST)
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"const\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"const\"/>\n", i->f);
else if (flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION)
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"invalidates\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"invalidates\"/>\n", i->f);
else if (!(flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE))
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"false\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Property.EmitsChangedSignal\" value=\"false\"/>\n", i->f);
}
if (!i->trusted &&
IN_SET(type, _SD_BUS_VTABLE_METHOD, _SD_BUS_VTABLE_WRITABLE_PROPERTY) &&
!(flags & SD_BUS_VTABLE_UNPRIVILEGED))
fputs_unlocked(" <annotation name=\"org.freedesktop.systemd1.Privileged\" value=\"true\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.systemd1.Privileged\" value=\"true\"/>\n", i->f);
}
static int introspect_write_arguments(struct introspect *i, const char *signature, const char *direction) {
@ -118,7 +122,7 @@ static int introspect_write_arguments(struct introspect *i, const char *signatur
if (direction)
fprintf(i->f, " direction=\"%s\"/>\n", direction);
else
fputs_unlocked("/>\n", i->f);
fputs("/>\n", i->f);
signature += l;
}
@ -141,7 +145,7 @@ int introspect_write_interface(struct introspect *i, const sd_bus_vtable *v) {
case _SD_BUS_VTABLE_START:
if (v->flags & SD_BUS_VTABLE_DEPRECATED)
fputs_unlocked(" <annotation name=\"org.freedesktop.DBus.Deprecated\" value=\"true\"/>\n", i->f);
fputs(" <annotation name=\"org.freedesktop.DBus.Deprecated\" value=\"true\"/>\n", i->f);
break;
case _SD_BUS_VTABLE_METHOD:
@ -149,7 +153,7 @@ int introspect_write_interface(struct introspect *i, const sd_bus_vtable *v) {
introspect_write_arguments(i, strempty(v->x.method.signature), "in");
introspect_write_arguments(i, strempty(v->x.method.result), "out");
introspect_write_flags(i, v->type, v->flags);
fputs_unlocked(" </method>\n", i->f);
fputs(" </method>\n", i->f);
break;
case _SD_BUS_VTABLE_PROPERTY:
@ -159,14 +163,14 @@ int introspect_write_interface(struct introspect *i, const sd_bus_vtable *v) {
v->x.property.signature,
v->type == _SD_BUS_VTABLE_WRITABLE_PROPERTY ? "readwrite" : "read");
introspect_write_flags(i, v->type, v->flags);
fputs_unlocked(" </property>\n", i->f);
fputs(" </property>\n", i->f);
break;
case _SD_BUS_VTABLE_SIGNAL:
fprintf(i->f, " <signal name=\"%s\">\n", v->x.signal.member);
introspect_write_arguments(i, strempty(v->x.signal.signature), NULL);
introspect_write_flags(i, v->type, v->flags);
fputs_unlocked(" </signal>\n", i->f);
fputs(" </signal>\n", i->f);
break;
}
@ -183,7 +187,7 @@ int introspect_finish(struct introspect *i, sd_bus *bus, sd_bus_message *m, sd_b
assert(m);
assert(reply);
fputs_unlocked("</node>\n", i->f);
fputs("</node>\n", i->f);
r = fflush_and_check(i->f);
if (r < 0)

18
src/libsystemd/sd-bus/bus-match.c
View File

@ -18,6 +18,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio_ext.h>
#include "alloc-util.h"
#include "bus-internal.h"
#include "bus-match.h"
@ -954,22 +956,24 @@ char *bus_match_to_string(struct bus_match_component *components, unsigned n_com
if (!f)
return NULL;
__fsetlocking(f, FSETLOCKING_BYCALLER);
for (i = 0; i < n_components; i++) {
char buf[32];
if (i != 0)
fputc_unlocked(',', f);
fputc(',', f);
fputs_unlocked(bus_match_node_type_to_string(components[i].type, buf, sizeof(buf)), f);
fputc_unlocked('=', f);
fputc_unlocked('\'', f);
fputs(bus_match_node_type_to_string(components[i].type, buf, sizeof(buf)), f);
fputc('=', f);
fputc('\'', f);
if (components[i].type == BUS_MATCH_MESSAGE_TYPE)
fputs_unlocked(bus_message_type_to_string(components[i].value_u8), f);
fputs(bus_message_type_to_string(components[i].value_u8), f);
else
fputs_unlocked(components[i].value_str, f);
fputs(components[i].value_str, f);
fputc_unlocked('\'', f);
fputc('\'', f);
}
r = fflush_and_check(f);

4
src/libsystemd/sd-bus/bus-objects.c
View File

@ -960,7 +960,7 @@ static int process_introspect(
if (!streq_ptr(previous_interface, c->interface)) {
if (previous_interface)
fputs_unlocked(" </interface>\n", intro.f);
fputs(" </interface>\n", intro.f);
fprintf(intro.f, " <interface name=\"%s\">\n", c->interface);
}
@ -973,7 +973,7 @@ static int process_introspect(
}
if (previous_interface)
fputs_unlocked(" </interface>\n", intro.f);
fputs(" </interface>\n", intro.f);
if (empty) {
/* Nothing?, let's see if we exist at all, and if not

18
src/locale/keymap-util.c
View File

@ -20,6 +20,7 @@
***/
#include <errno.h>
#include <stdio_ext.h>
#include <string.h>
#include <unistd.h>
@ -358,14 +359,15 @@ int x11_write_data(Context *c) {
if (r < 0)
return r;
fchmod(fileno(f), 0644);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fputs_unlocked("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
"# probably wise not to edit this file manually. Use localectl(1) to\n"
"# instruct systemd-localed to update it.\n"
"Section \"InputClass\"\n"
" Identifier \"system-keyboard\"\n"
" MatchIsKeyboard \"on\"\n", f);
fputs("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
"# probably wise not to edit this file manually. Use localectl(1) to\n"
"# instruct systemd-localed to update it.\n"
"Section \"InputClass\"\n"
" Identifier \"system-keyboard\"\n"
" MatchIsKeyboard \"on\"\n", f);
if (!isempty(c->x11_layout))
fprintf(f, " Option \"XkbLayout\" \"%s\"\n", c->x11_layout);
@ -379,7 +381,7 @@ int x11_write_data(Context *c) {
if (!isempty(c->x11_options))
fprintf(f, " Option \"XkbOptions\" \"%s\"\n", c->x11_options);
fputs_unlocked("EndSection\n", f);
fputs("EndSection\n", f);
r = fflush_sync_and_check(f);
if (r < 0)

8
src/login/logind-seat.c
View File

@ -20,6 +20,7 @@
#include <errno.h>
#include <fcntl.h>
#include <stdio_ext.h>
#include <string.h>
#include <unistd.h>
@ -102,7 +103,8 @@ int seat_save(Seat *s) {
if (r < 0)
goto fail;
fchmod(fileno(f), 0644);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
"# This is private data. Do not parse.\n"
@ -128,7 +130,7 @@ int seat_save(Seat *s) {
if (s->sessions) {
Session *i;
fputs_unlocked("SESSIONS=", f);
fputs("SESSIONS=", f);
LIST_FOREACH(sessions_by_seat, i, s->sessions) {
fprintf(f,
"%s%c",
@ -136,7 +138,7 @@ int seat_save(Seat *s) {
i->sessions_by_seat_next ? ' ' : '\n');
}
fputs_unlocked("UIDS=", f);
fputs("UIDS=", f);
LIST_FOREACH(sessions_by_seat, i, s->sessions)
fprintf(f,
UID_FMT"%c",

42
src/login/logind-user.c
View File

@ -22,6 +22,7 @@
#include <string.h>
#include <sys/mount.h>
#include <unistd.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "bus-common-errors.h"
@ -150,7 +151,8 @@ static int user_save_internal(User *u) {
if (r < 0)
goto fail;
fchmod(fileno(f), 0644);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
"# This is private data. Do not parse.\n"
@ -183,18 +185,18 @@ static int user_save_internal(User *u) {
Session *i;
bool first;
fputs_unlocked("SESSIONS=", f);
fputs("SESSIONS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->id, f);
fputs(i->id, f);
}
fputs_unlocked("\nSEATS=", f);
fputs("\nSEATS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (!i->seat)
@ -203,12 +205,12 @@ static int user_save_internal(User *u) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->seat->id, f);
fputs(i->seat->id, f);
}
fputs_unlocked("\nACTIVE_SESSIONS=", f);
fputs("\nACTIVE_SESSIONS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (!session_is_active(i))
@ -217,12 +219,12 @@ static int user_save_internal(User *u) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->id, f);
fputs(i->id, f);
}
fputs_unlocked("\nONLINE_SESSIONS=", f);
fputs("\nONLINE_SESSIONS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (session_get_state(i) == SESSION_CLOSING)
@ -231,12 +233,12 @@ static int user_save_internal(User *u) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->id, f);
fputs(i->id, f);
}
fputs_unlocked("\nACTIVE_SEATS=", f);
fputs("\nACTIVE_SEATS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (!session_is_active(i) || !i->seat)
@ -245,12 +247,12 @@ static int user_save_internal(User *u) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->seat->id, f);
fputs(i->seat->id, f);
}
fputs_unlocked("\nONLINE_SEATS=", f);
fputs("\nONLINE_SEATS=", f);
first = true;
LIST_FOREACH(sessions_by_user, i, u->sessions) {
if (session_get_state(i) == SESSION_CLOSING || !i->seat)
@ -259,11 +261,11 @@ static int user_save_internal(User *u) {
if (first)
first = false;
else
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(i->seat->id, f);
fputs(i->seat->id, f);
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
r = fflush_and_check(f);

8
src/machine/machine.c
View File

@ -21,6 +21,7 @@
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdio_ext.h>
#include "sd-messages.h"
@ -138,6 +139,7 @@ int machine_save(Machine *m) {
if (r < 0)
goto fail;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
@ -201,16 +203,16 @@ int machine_save(Machine *m) {
if (m->n_netif > 0) {
unsigned i;
fputs_unlocked("NETIF=", f);
fputs("NETIF=", f);
for (i = 0; i < m->n_netif; i++) {
if (i != 0)
fputc_unlocked(' ', f);
fputc(' ', f);
fprintf(f, "%i", m->netif[i]);
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
r = fflush_and_check(f);

58
src/network/networkd-link.c
View File

@ -21,6 +21,7 @@
#include <netinet/ether.h>
#include <linux/if.h>
#include <unistd.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "bus-util.h"
@ -3360,16 +3361,16 @@ static void print_link_hashmap(FILE *f, const char *prefix, Hashmap* h) {
if (hashmap_isempty(h))
return;
fputs_unlocked(prefix, f);
fputs(prefix, f);
HASHMAP_FOREACH(link, h, i) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
fprintf(f, "%i", link->ifindex);
space = true;
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
int link_save(Link *link) {
@ -3403,6 +3404,7 @@ int link_save(Link *link) {
if (r < 0)
goto fail;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
@ -3430,7 +3432,7 @@ int link_save(Link *link) {
fprintf(f, "NETWORK_FILE=%s\n", link->network->filename);
fputs_unlocked("DNS=", f);
fputs("DNS=", f);
space = false;
for (j = 0; j < link->network->n_dns; j++) {
@ -3444,8 +3446,8 @@ int link_save(Link *link) {
}
if (space)
fputc_unlocked(' ', f);
fputs_unlocked(b, f);
fputc(' ', f);
fputs(b, f);
space = true;
}
@ -3456,7 +3458,7 @@ int link_save(Link *link) {
r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
if (r > 0) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
serialize_in_addrs(f, addresses, r);
space = true;
}
@ -3468,7 +3470,7 @@ int link_save(Link *link) {
r = sd_dhcp6_lease_get_dns(dhcp6_lease, &in6_addrs);
if (r > 0) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
serialize_in6_addrs(f, in6_addrs, r);
space = true;
}
@ -3482,16 +3484,16 @@ int link_save(Link *link) {
SET_FOREACH(dd, link->ndisc_rdnss, i) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
serialize_in6_addrs(f, &dd->address, 1);
space = true;
}
}
fputc_unlocked('\n', f);
fputc('\n', f);
fputs_unlocked("NTP=", f);
fputs("NTP=", f);
space = false;
fputstrv(f, link->network->ntp, NULL, &space);
@ -3502,7 +3504,7 @@ int link_save(Link *link) {
r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
if (r > 0) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
serialize_in_addrs(f, addresses, r);
space = true;
}
@ -3516,7 +3518,7 @@ int link_save(Link *link) {
&in6_addrs);
if (r > 0) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
serialize_in6_addrs(f, in6_addrs, r);
space = true;
}
@ -3526,7 +3528,7 @@ int link_save(Link *link) {
fputstrv(f, hosts, NULL, &space);
}
fputc_unlocked('\n', f);
fputc('\n', f);
if (link->network->dhcp_use_domains != DHCP_USE_DOMAINS_NO) {
if (link->dhcp_lease) {
@ -3537,7 +3539,7 @@ int link_save(Link *link) {
(void) sd_dhcp6_lease_get_domains(dhcp6_lease, &dhcp6_domains);
}
fputs_unlocked("DOMAINS=", f);
fputs("DOMAINS=", f);
space = false;
fputstrv(f, link->network->search_domains, NULL, &space);
@ -3555,9 +3557,9 @@ int link_save(Link *link) {
fputs_with_space(f, NDISC_DNSSL_DOMAIN(dd), NULL, &space);
}
fputc_unlocked('\n', f);
fputc('\n', f);
fputs_unlocked("ROUTE_DOMAINS=", f);
fputs("ROUTE_DOMAINS=", f);
space = false;
fputstrv(f, link->network->route_domains, NULL, &space);
@ -3575,7 +3577,7 @@ int link_save(Link *link) {
fputs_with_space(f, NDISC_DNSSL_DOMAIN(dd), NULL, &space);
}
fputc_unlocked('\n', f);
fputc('\n', f);
fprintf(f, "LLMNR=%s\n",
resolve_support_to_string(link->network->llmnr));
@ -3589,14 +3591,14 @@ int link_save(Link *link) {
if (!set_isempty(link->network->dnssec_negative_trust_anchors)) {
const char *n;
fputs_unlocked("DNSSEC_NTA=", f);
fputs("DNSSEC_NTA=", f);
space = false;
SET_FOREACH(n, link->network->dnssec_negative_trust_anchors, i)
fputs_with_space(f, n, NULL, &space);
fputc_unlocked('\n', f);
fputc('\n', f);
}
fputs_unlocked("ADDRESSES=", f);
fputs("ADDRESSES=", f);
space = false;
SET_FOREACH(a, link->addresses, i) {
_cleanup_free_ char *address_str = NULL;
@ -3608,9 +3610,9 @@ int link_save(Link *link) {
fprintf(f, "%s%s/%u", space ? " " : "", address_str, a->prefixlen);
space = true;
}
fputc_unlocked('\n', f);
fputc('\n', f);
fputs_unlocked("ROUTES=", f);
fputs("ROUTES=", f);
space = false;
SET_FOREACH(route, link->routes, i) {
_cleanup_free_ char *route_str = NULL;
@ -3625,7 +3627,7 @@ int link_save(Link *link) {
space = true;
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
print_link_hashmap(f, "CARRIER_BOUND_TO=", link->bound_to_links);
@ -3643,9 +3645,9 @@ int link_save(Link *link) {
r = sd_dhcp_lease_get_address(link->dhcp_lease, &address);
if (r >= 0) {
fputs_unlocked("DHCP4_ADDRESS=", f);
fputs("DHCP4_ADDRESS=", f);
serialize_in_addrs(f, &address, 1);
fputc_unlocked('\n', f);
fputc('\n', f);
}
r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
@ -3663,9 +3665,9 @@ int link_save(Link *link) {
r = sd_ipv4ll_get_address(link->ipv4ll, &address);
if (r >= 0) {
fputs_unlocked("IPV4LL_ADDRESS=", f);
fputs("IPV4LL_ADDRESS=", f);
serialize_in_addrs(f, &address, 1);
fputc_unlocked('\n', f);
fputc('\n', f);
}
}

6
src/network/networkd-manager.c
View File

@ -21,6 +21,7 @@
#include <sys/socket.h>
#include <linux/if.h>
#include <linux/fib_rules.h>
#include <stdio_ext.h>
#include "sd-daemon.h"
#include "sd-netlink.h"
@ -991,12 +992,12 @@ static void print_string_set(FILE *f, const char *field, OrderedSet *s) {
if (ordered_set_isempty(s))
return;
fputs_unlocked(field, f);
fputs(field, f);
ORDERED_SET_FOREACH(p, s, i)
fputs_with_space(f, p, NULL, &space);
fputc_unlocked('\n', f);
fputc('\n', f);
}
static int manager_save(Manager *m) {
@ -1114,6 +1115,7 @@ static int manager_save(Manager *m) {
if (r < 0)
return r;
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,

32
src/resolve/resolved-link.c
View File

@ -19,6 +19,7 @@
***/
#include <net/if.h>
#include <stdio_ext.h>
#include "sd-network.h"
@ -1100,7 +1101,10 @@ int link_save_user(Link *l) {
if (r < 0)
goto fail;
fputs_unlocked("# This is private data. Do not parse.\n", f);
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fputs("# This is private data. Do not parse.\n", f);
v = resolve_support_to_string(l->llmnr_support);
if (v)
@ -1117,11 +1121,11 @@ int link_save_user(Link *l) {
if (l->dns_servers) {
DnsServer *server;
fputs_unlocked("SERVERS=", f);
fputs("SERVERS=", f);
LIST_FOREACH(servers, server, l->dns_servers) {
if (server != l->dns_servers)
fputc_unlocked(' ', f);
fputc(' ', f);
v = dns_server_string(server);
if (!v) {
@ -1129,26 +1133,26 @@ int link_save_user(Link *l) {
goto fail;
}
fputs_unlocked(v, f);
fputs(v, f);
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
if (l->search_domains) {
DnsSearchDomain *domain;
fputs_unlocked("DOMAINS=", f);
fputs("DOMAINS=", f);
LIST_FOREACH(domains, domain, l->search_domains) {
if (domain != l->search_domains)
fputc_unlocked(' ', f);
fputc(' ', f);
if (domain->route_only)
fputc_unlocked('~', f);
fputc('~', f);
fputs_unlocked(DNS_SEARCH_DOMAIN_NAME(domain), f);
fputs(DNS_SEARCH_DOMAIN_NAME(domain), f);
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
if (!set_isempty(l->dnssec_negative_trust_anchors)) {
@ -1156,16 +1160,16 @@ int link_save_user(Link *l) {
Iterator i;
char *nta;
fputs_unlocked("NTAS=", f);
fputs("NTAS=", f);
SET_FOREACH(nta, l->dnssec_negative_trust_anchors, i) {
if (space)
fputc_unlocked(' ', f);
fputc(' ', f);
fputs_unlocked(nta, f);
fputs(nta, f);
space = true;
}
fputc_unlocked('\n', f);
fputc('\n', f);
}
r = fflush_and_check(f);

3
src/resolve/resolved-manager.c
View File

@ -20,6 +20,7 @@
#include <netinet/in.h>
#include <poll.h>
#include <stdio_ext.h>
#include <sys/ioctl.h>
#if HAVE_LIBIDN2
@ -535,6 +536,8 @@ static int manager_sigusr1(sd_event_source *s, const struct signalfd_siginfo *si
if (!f)
return log_oom();
(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
LIST_FOREACH(scopes, scope, m->dns_scopes)
dns_scope_dump(scope, f);

54
src/resolve/resolved-resolv-conf.c
View File

@ -19,6 +19,7 @@
***/
#include <resolv.h>
#include <stdio_ext.h>
#include "alloc-util.h"
#include "dns-domain.h"
@ -201,7 +202,7 @@ static void write_resolv_conf_server(DnsServer *s, FILE *f, unsigned *count) {
}
if (*count == MAXNS)
fputs_unlocked("# Too many DNS servers configured, the following entries may be ignored.\n", f);
fputs("# Too many DNS servers configured, the following entries may be ignored.\n", f);
(*count)++;
fprintf(f, "nameserver %s\n", dns_server_string(s));
@ -217,43 +218,43 @@ static void write_resolv_conf_search(
assert(domains);
assert(f);
fputs_unlocked("search", f);
fputs("search", f);
ORDERED_SET_FOREACH(domain, domains, i) {
if (++count > MAXDNSRCH) {
fputs_unlocked("\n# Too many search domains configured, remaining ones ignored.", f);
fputs("\n# Too many search domains configured, remaining ones ignored.", f);
break;
}
length += strlen(domain) + 1;
if (length > 256) {
fputs_unlocked("\n# Total length of all search domains is too long, remaining ones ignored.", f);
fputs("\n# Total length of all search domains is too long, remaining ones ignored.", f);
break;
}
fputc_unlocked(' ', f);
fputs_unlocked(domain, f);
fputc(' ', f);
fputs(domain, f);
}
fputs_unlocked("\n", f);
fputs("\n", f);
}
static int write_uplink_resolv_conf_contents(FILE *f, OrderedSet *dns, OrderedSet *domains) {
Iterator i;
fputs_unlocked("# This file is managed by man:systemd-resolved(8). Do not edit.\n"
"#\n"
"# This is a dynamic resolv.conf file for connecting local clients directly to\n"
"# all known uplink DNS servers. This file lists all configured search domains.\n"
"#\n"
"# Third party programs must not access this file directly, but only through the\n"
"# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,\n"
"# replace this symlink by a static file or a different symlink.\n"
"#\n"
"# See man:systemd-resolved.service(8) for details about the supported modes of\n"
"# operation for /etc/resolv.conf.\n"
"\n", f);
fputs("# This file is managed by man:systemd-resolved(8). Do not edit.\n"
"#\n"
"# This is a dynamic resolv.conf file for connecting local clients directly to\n"
"# all known uplink DNS servers. This file lists all configured search domains.\n"
"#\n"
"# Third party programs must not access this file directly, but only through the\n"
"# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,\n"
"# replace this symlink by a static file or a different symlink.\n"
"#\n"
"# See man:systemd-resolved.service(8) for details about the supported modes of\n"
"# operation for /etc/resolv.conf.\n"
"\n", f);
if (ordered_set_isempty(dns))
fputs_unlocked("# No DNS servers known.\n", f);
fputs("# No DNS servers known.\n", f);
else {
unsigned count = 0;
DnsServer *s;
@ -296,10 +297,8 @@ static int write_stub_resolv_conf_contents(FILE *f, OrderedSet *dns, OrderedSet
int manager_write_resolv_conf(Manager *m) {
_cleanup_ordered_set_free_ OrderedSet *dns = NULL, *domains = NULL;
_cleanup_free_ char *temp_path_uplink = NULL;
_cleanup_free_ char *temp_path_stub = NULL;
_cleanup_fclose_ FILE *f_uplink = NULL;
_cleanup_fclose_ FILE *f_stub = NULL;
_cleanup_free_ char *temp_path_uplink = NULL, *temp_path_stub = NULL;
_cleanup_fclose_ FILE *f_uplink = NULL, *f_stub = NULL;
int r;
assert(m);
@ -319,10 +318,15 @@ int manager_write_resolv_conf(Manager *m) {
r = fopen_temporary_label(PRIVATE_UPLINK_RESOLV_CONF, PRIVATE_UPLINK_RESOLV_CONF, &f_uplink, &temp_path_uplink);
if (r < 0)
return log_warning_errno(r, "Failed to open private resolv.conf file for writing: %m");
(void) __fsetlocking(f_uplink, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f_uplink), 0644);
r = fopen_temporary_label(PRIVATE_STUB_RESOLV_CONF, PRIVATE_STUB_RESOLV_CONF, &f_stub, &temp_path_stub);
if (r < 0)
return log_warning_errno(r, "Failed to open private stub-resolv.conf file for writing: %m");
(void) fchmod(fileno(f_uplink), 0644);
(void) __fsetlocking(f_stub, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f_stub), 0644);
r = write_uplink_resolv_conf_contents(f_uplink, dns, domains);