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-rw-r--r--src/basic/log.c6
-rw-r--r--src/basic/socket-util.h11
-rw-r--r--src/cgroups-agent/cgroups-agent.c2
-rw-r--r--src/core/dbus.c2
-rw-r--r--src/core/execute.c2
-rw-r--r--src/core/manager.c11
-rw-r--r--src/coredump/coredump.c2
-rw-r--r--src/fsck/fsck.c2
-rw-r--r--src/import/importd.c2
-rw-r--r--src/journal/journal-send.c14
-rw-r--r--src/journal/journald-native.c14
-rw-r--r--src/journal/journald-server.c2
-rw-r--r--src/journal/journald-stream.c13
-rw-r--r--src/journal/journald-syslog.c18
-rw-r--r--src/libsystemd/sd-bus/sd-bus.c2
-rw-r--r--src/libsystemd/sd-daemon/sd-daemon.c4
-rw-r--r--src/login/pam_systemd.c2
-rw-r--r--src/reply-password/reply-password.c8
-rw-r--r--src/shared/ask-password-api.c2
-rw-r--r--src/socket-proxy/socket-proxyd.c17
-rw-r--r--src/test/test-socket-util.c17
-rw-r--r--src/tty-ask-password-agent/tty-ask-password-agent.c7
-rw-r--r--src/udev/udev-ctrl.c2
23 files changed, 87 insertions, 75 deletions
diff --git a/src/basic/log.c b/src/basic/log.c
index d89e6f7274..3ea643b6e6 100644
--- a/src/basic/log.c
+++ b/src/basic/log.c
@@ -165,7 +165,7 @@ static int log_open_syslog(void) {
goto fail;
}
- if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(syslog_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
safe_close(syslog_fd);
/* Some legacy syslog systems still use stream
@@ -177,7 +177,7 @@ static int log_open_syslog(void) {
goto fail;
}
- if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(syslog_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
r = -errno;
goto fail;
}
@@ -215,7 +215,7 @@ static int log_open_journal(void) {
goto fail;
}
- if (connect(journal_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(journal_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
r = -errno;
goto fail;
}
diff --git a/src/basic/socket-util.h b/src/basic/socket-util.h
index d17a2f35f8..daa4b24a37 100644
--- a/src/basic/socket-util.h
+++ b/src/basic/socket-util.h
@@ -137,3 +137,14 @@ ssize_t next_datagram_size_fd(int fd);
#define CMSG_FOREACH(cmsg, mh) \
for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg)))
+
+/* Covers only file system and abstract AF_UNIX socket addresses, but not unnamed socket addresses. */
+#define SOCKADDR_UN_LEN(sa) \
+ ({ \
+ const struct sockaddr_un *_sa = &(sa); \
+ assert(_sa->sun_family == AF_UNIX); \
+ offsetof(struct sockaddr_un, sun_path) + \
+ (_sa->sun_path[0] == 0 ? \
+ 1 + strnlen(_sa->sun_path+1, sizeof(_sa->sun_path)-1) : \
+ strnlen(_sa->sun_path, sizeof(_sa->sun_path))); \
+ })
diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c
index 333ce110d3..d7c722ac3d 100644
--- a/src/cgroups-agent/cgroups-agent.c
+++ b/src/cgroups-agent/cgroups-agent.c
@@ -52,7 +52,7 @@ int main(int argc, char *argv[]) {
l = strlen(argv[1]);
- n = sendto(fd, argv[1], l, 0, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
+ n = sendto(fd, argv[1], l, 0, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (n < 0) {
log_debug_errno(errno, "Failed to send cgroups agent message: %m");
return EXIT_FAILURE;
diff --git a/src/core/dbus.c b/src/core/dbus.c
index c8375a0475..3422a02d68 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -975,7 +975,7 @@ static int bus_init_private(Manager *m) {
return 0;
strcpy(sa.un.sun_path, "/run/systemd/private");
- salen = offsetof(union sockaddr_union, un.sun_path) + strlen("/run/systemd/private");
+ salen = SOCKADDR_UN_LEN(sa.un);
} else {
size_t left = sizeof(sa.un.sun_path);
char *p = sa.un.sun_path;
diff --git a/src/core/execute.c b/src/core/execute.c
index ac2ac39892..5eb3f13695 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -271,7 +271,7 @@ static int connect_journal_socket(int fd, uid_t uid, gid_t gid) {
}
}
- r = connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
+ r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
r = -errno;
diff --git a/src/core/manager.c b/src/core/manager.c
index 17b940c11a..e192cd475d 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -705,7 +705,7 @@ static int manager_setup_notify(Manager *m) {
(void) unlink(m->notify_socket);
strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
- r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
+ r = bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
@@ -782,7 +782,7 @@ static int manager_setup_cgroups_agent(Manager *m) {
/* Only allow root to connect to this socket */
RUN_WITH_UMASK(0077)
- r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
+ r = bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
@@ -2245,11 +2245,10 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
}
void manager_send_unit_plymouth(Manager *m, Unit *u) {
- union sockaddr_union sa = PLYMOUTH_SOCKET;
-
- int n = 0;
+ static const union sockaddr_union sa = PLYMOUTH_SOCKET;
_cleanup_free_ char *message = NULL;
_cleanup_close_ int fd = -1;
+ int n = 0;
/* Don't generate plymouth events if the service was already
* started and we're just deserializing */
@@ -2275,7 +2274,7 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) {
return;
}
- if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
+ if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
log_error_errno(errno, "connect() failed: %m");
diff --git a/src/coredump/coredump.c b/src/coredump/coredump.c
index 41fc1993d5..01fdcfa909 100644
--- a/src/coredump/coredump.c
+++ b/src/coredump/coredump.c
@@ -847,7 +847,7 @@ static int send_iovec(const struct iovec iovec[], size_t n_iovec, int input_fd)
if (fd < 0)
return log_error_errno(errno, "Failed to create coredump socket: %m");
- if (connect(fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0)
+ if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return log_error_errno(errno, "Failed to connect to coredump service: %m");
for (i = 0; i < n_iovec; i++) {
diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
index 6f56066da8..d32e1d923e 100644
--- a/src/fsck/fsck.c
+++ b/src/fsck/fsck.c
@@ -262,7 +262,7 @@ static int fsck_progress_socket(void) {
if (fd < 0)
return log_warning_errno(errno, "socket(): %m");
- if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
r = log_full_errno(errno == ECONNREFUSED || errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
errno, "Failed to connect to progress socket %s, ignoring: %m", sa.un.sun_path);
safe_close(fd);
diff --git a/src/import/importd.c b/src/import/importd.c
index d2a5867a6e..956a82945c 100644
--- a/src/import/importd.c
+++ b/src/import/importd.c
@@ -677,7 +677,7 @@ static int manager_new(Manager **ret) {
(void) mkdir_parents_label(sa.un.sun_path, 0755);
(void) unlink(sa.un.sun_path);
- if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0)
+ if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return -errno;
if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)
diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c
index f0959b6237..5e8a3e3200 100644
--- a/src/journal/journal-send.c
+++ b/src/journal/journal-send.c
@@ -208,13 +208,13 @@ _public_ int sd_journal_sendv(const struct iovec *iov, int n) {
struct iovec *w;
uint64_t *l;
int i, j = 0;
- struct sockaddr_un sa = {
- .sun_family = AF_UNIX,
- .sun_path = "/run/systemd/journal/socket",
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/socket",
};
struct msghdr mh = {
- .msg_name = &sa,
- .msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(sa.sun_path),
+ .msg_name = (struct sockaddr*) &sa.sa,
+ .msg_namelen = SOCKADDR_UN_LEN(sa.un),
};
ssize_t k;
bool have_syslog_identifier = false;
@@ -392,7 +392,7 @@ _public_ int sd_journal_perror(const char *message) {
}
_public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) {
- union sockaddr_union sa = {
+ static const union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
.un.sun_path = "/run/systemd/journal/stdout",
};
@@ -408,7 +408,7 @@ _public_ int sd_journal_stream_fd(const char *identifier, int priority, int leve
if (fd < 0)
return -errno;
- r = connect(fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path));
+ r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return -errno;
diff --git a/src/journal/journald-native.c b/src/journal/journald-native.c
index a445291a5e..0a1ce205c2 100644
--- a/src/journal/journald-native.c
+++ b/src/journal/journald-native.c
@@ -448,24 +448,24 @@ void server_process_native_file(
}
int server_open_native_socket(Server*s) {
+
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/socket",
+ };
static const int one = 1;
int r;
assert(s);
if (s->native_fd < 0) {
- union sockaddr_union sa = {
- .un.sun_family = AF_UNIX,
- .un.sun_path = "/run/systemd/journal/socket",
- };
-
s->native_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (s->native_fd < 0)
return log_error_errno(errno, "socket() failed: %m");
- unlink(sa.un.sun_path);
+ (void) unlink(sa.un.sun_path);
- r = bind(s->native_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path));
+ r = bind(s->native_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index e14d0ad980..8f82d2a838 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -1696,7 +1696,7 @@ static int server_connect_notify(Server *s) {
if (sa.un.sun_path[0] == '@')
sa.un.sun_path[0] = 0;
- r = connect(s->notify_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(e));
+ r = connect(s->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "Failed to connect to notify socket: %m");
diff --git a/src/journal/journald-stream.c b/src/journal/journald-stream.c
index 59352bcb3f..4ad16ee41c 100644
--- a/src/journal/journald-stream.c
+++ b/src/journal/journald-stream.c
@@ -700,23 +700,22 @@ fail:
}
int server_open_stdout_socket(Server *s) {
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/stdout",
+ };
int r;
assert(s);
if (s->stdout_fd < 0) {
- union sockaddr_union sa = {
- .un.sun_family = AF_UNIX,
- .un.sun_path = "/run/systemd/journal/stdout",
- };
-
s->stdout_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (s->stdout_fd < 0)
return log_error_errno(errno, "socket() failed: %m");
- unlink(sa.un.sun_path);
+ (void) unlink(sa.un.sun_path);
- r = bind(s->stdout_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path));
+ r = bind(s->stdout_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c
index 5153fd0cce..ead47887d8 100644
--- a/src/journal/journald-syslog.c
+++ b/src/journal/journald-syslog.c
@@ -52,8 +52,7 @@ static void forward_syslog_iovec(Server *s, const struct iovec *iovec, unsigned
.msg_iov = (struct iovec *) iovec,
.msg_iovlen = n_iovec,
.msg_name = (struct sockaddr*) &sa.sa,
- .msg_namelen = offsetof(union sockaddr_union, un.sun_path)
- + strlen("/run/systemd/journal/syslog"),
+ .msg_namelen = SOCKADDR_UN_LEN(sa.un),
};
struct cmsghdr *cmsg;
union {
@@ -383,24 +382,24 @@ void server_process_syslog_message(
}
int server_open_syslog_socket(Server *s) {
+
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/dev-log",
+ };
static const int one = 1;
int r;
assert(s);
if (s->syslog_fd < 0) {
- static const union sockaddr_union sa = {
- .un.sun_family = AF_UNIX,
- .un.sun_path = "/run/systemd/journal/dev-log",
- };
-
s->syslog_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (s->syslog_fd < 0)
return log_error_errno(errno, "socket() failed: %m");
- unlink(sa.un.sun_path);
+ (void) unlink(sa.un.sun_path);
- r = bind(s->syslog_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path));
+ r = bind(s->syslog_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
@@ -437,6 +436,7 @@ int server_open_syslog_socket(Server *s) {
void server_maybe_warn_forward_syslog_missed(Server *s) {
usec_t n;
+
assert(s);
if (s->n_forward_syslog_missed <= 0)
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
index 04da94e7e3..ed5f94e136 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/sd-bus/sd-bus.c
@@ -836,7 +836,7 @@ static int parse_container_unix_address(sd_bus *b, const char **p, char **guid)
b->sockaddr.un.sun_family = AF_UNIX;
strncpy(b->sockaddr.un.sun_path, "/var/run/dbus/system_bus_socket", sizeof(b->sockaddr.un.sun_path));
- b->sockaddr_size = offsetof(struct sockaddr_un, sun_path) + strlen("/var/run/dbus/system_bus_socket");
+ b->sockaddr_size = SOCKADDR_UN_LEN(b->sockaddr.un);
return 0;
}
diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/sd-daemon/sd-daemon.c
index bd1c7f15ff..4da9dbfd63 100644
--- a/src/libsystemd/sd-daemon/sd-daemon.c
+++ b/src/libsystemd/sd-daemon/sd-daemon.c
@@ -458,9 +458,7 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char
if (sockaddr.un.sun_path[0] == '@')
sockaddr.un.sun_path[0] = 0;
- msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e);
- if (msghdr.msg_namelen > sizeof(struct sockaddr_un))
- msghdr.msg_namelen = sizeof(struct sockaddr_un);
+ msghdr.msg_namelen = SOCKADDR_UN_LEN(sockaddr.un);
have_pid = pid != 0 && pid != getpid();
diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c
index 40e246bb06..98dc201340 100644
--- a/src/login/pam_systemd.c
+++ b/src/login/pam_systemd.c
@@ -150,7 +150,7 @@ static int get_seat_from_display(const char *display, const char **seat, uint32_
if (fd < 0)
return -errno;
- if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0)
+ if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return -errno;
r = getpeercred(fd, &ucred);
diff --git a/src/reply-password/reply-password.c b/src/reply-password/reply-password.c
index e291758969..17eab9772e 100644
--- a/src/reply-password/reply-password.c
+++ b/src/reply-password/reply-password.c
@@ -26,14 +26,12 @@
#include "fd-util.h"
#include "log.h"
#include "macro.h"
+#include "socket-util.h"
#include "string-util.h"
#include "util.h"
static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) {
- union {
- struct sockaddr sa;
- struct sockaddr_un un;
- } sa = {
+ union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
};
@@ -43,7 +41,7 @@ static int send_on_socket(int fd, const char *socket_name, const void *packet, s
strncpy(sa.un.sun_path, socket_name, sizeof(sa.un.sun_path));
- if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(socket_name)) < 0)
+ if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return log_error_errno(errno, "Failed to send: %m");
return 0;
diff --git a/src/shared/ask-password-api.c b/src/shared/ask-password-api.c
index 6805873f9e..4a4bd8d3b8 100644
--- a/src/shared/ask-password-api.c
+++ b/src/shared/ask-password-api.c
@@ -431,7 +431,7 @@ static int create_socket(char **name) {
snprintf(sa.un.sun_path, sizeof(sa.un.sun_path)-1, "/run/systemd/ask-password/sck.%" PRIx64, random_u64());
RUN_WITH_UMASK(0177) {
- if (bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0)
+ if (bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return -errno;
}
diff --git a/src/socket-proxy/socket-proxyd.c b/src/socket-proxy/socket-proxyd.c
index 1157a0c72e..52b4db8875 100644
--- a/src/socket-proxy/socket-proxyd.c
+++ b/src/socket-proxy/socket-proxyd.c
@@ -400,28 +400,19 @@ static int resolve_remote(Connection *c) {
union sockaddr_union sa = {};
const char *node, *service;
- socklen_t salen;
int r;
if (path_is_absolute(arg_remote_host)) {
sa.un.sun_family = AF_UNIX;
- strncpy(sa.un.sun_path, arg_remote_host, sizeof(sa.un.sun_path)-1);
- sa.un.sun_path[sizeof(sa.un.sun_path)-1] = 0;
-
- salen = offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path);
-
- return connection_start(c, &sa.sa, salen);
+ strncpy(sa.un.sun_path, arg_remote_host, sizeof(sa.un.sun_path));
+ return connection_start(c, &sa.sa, SOCKADDR_UN_LEN(sa.un));
}
if (arg_remote_host[0] == '@') {
sa.un.sun_family = AF_UNIX;
sa.un.sun_path[0] = 0;
- strncpy(sa.un.sun_path+1, arg_remote_host+1, sizeof(sa.un.sun_path)-2);
- sa.un.sun_path[sizeof(sa.un.sun_path)-1] = 0;
-
- salen = offsetof(union sockaddr_union, un.sun_path) + 1 + strlen(sa.un.sun_path + 1);
-
- return connection_start(c, &sa.sa, salen);
+ strncpy(sa.un.sun_path+1, arg_remote_host+1, sizeof(sa.un.sun_path)-1);
+ return connection_start(c, &sa.sa, SOCKADDR_UN_LEN(sa.un));
}
service = strrchr(arg_remote_host, ':');
diff --git a/src/test/test-socket-util.c b/src/test/test-socket-util.c
index 33ff3755bc..9e01f3afd4 100644
--- a/src/test/test-socket-util.c
+++ b/src/test/test-socket-util.c
@@ -343,6 +343,21 @@ static void test_sockaddr_equal(void) {
assert_se(!sockaddr_equal(&b, &c));
}
+static void test_sockaddr_un_len(void) {
+ static const struct sockaddr_un fs = {
+ .sun_family = AF_UNIX,
+ .sun_path = "/foo/bar/waldo",
+ };
+
+ static const struct sockaddr_un abstract = {
+ .sun_family = AF_UNIX,
+ .sun_path = "\0foobar",
+ };
+
+ assert_se(SOCKADDR_UN_LEN(fs) == offsetof(struct sockaddr_un, sun_path) + strlen(fs.sun_path));
+ assert_se(SOCKADDR_UN_LEN(abstract) == offsetof(struct sockaddr_un, sun_path) + 1 + strlen(abstract.sun_path + 1));
+}
+
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
@@ -363,5 +378,7 @@ int main(int argc, char *argv[]) {
test_sockaddr_equal();
+ test_sockaddr_un_len();
+
return 0;
}
diff --git a/src/tty-ask-password-agent/tty-ask-password-agent.c b/src/tty-ask-password-agent/tty-ask-password-agent.c
index c7ded451a2..ee879c7b89 100644
--- a/src/tty-ask-password-agent/tty-ask-password-agent.c
+++ b/src/tty-ask-password-agent/tty-ask-password-agent.c
@@ -65,8 +65,8 @@ static int ask_password_plymouth(
const char *flag_file,
char ***ret) {
+ static const union sockaddr_union sa = PLYMOUTH_SOCKET;
_cleanup_close_ int fd = -1, notify = -1;
- union sockaddr_union sa = PLYMOUTH_SOCKET;
_cleanup_free_ char *packet = NULL;
ssize_t k;
int r, n;
@@ -94,7 +94,7 @@ static int ask_password_plymouth(
if (fd < 0)
return -errno;
- r = connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1));
+ r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return -errno;
@@ -269,8 +269,7 @@ static int send_passwords(const char *socket_name, char **passwords) {
strncpy(sa.un.sun_path, socket_name, sizeof(sa.un.sun_path));
- r = sendto(socket_fd, packet, packet_length, MSG_NOSIGNAL, &sa.sa,
- offsetof(struct sockaddr_un, sun_path) + strlen(socket_name));
+ r = sendto(socket_fd, packet, packet_length, MSG_NOSIGNAL, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
r = log_debug_errno(errno, "sendto(): %m");
diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c
index 962de22f43..f68a09d7a8 100644
--- a/src/udev/udev-ctrl.c
+++ b/src/udev/udev-ctrl.c
@@ -105,7 +105,7 @@ struct udev_ctrl *udev_ctrl_new_from_fd(struct udev *udev, int fd) {
uctrl->saddr.un.sun_family = AF_LOCAL;
strscpy(uctrl->saddr.un.sun_path, sizeof(uctrl->saddr.un.sun_path), "/run/udev/control");
- uctrl->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(uctrl->saddr.un.sun_path);
+ uctrl->addrlen = SOCKADDR_UN_LEN(uctrl->saddr.un);
return uctrl;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-19 15:37:58 +0000