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-rw-r--r--src/core/ima-setup.c17
-rw-r--r--src/core/machine-id-setup.c5
-rw-r--r--src/journal/compress.c11
-rw-r--r--src/journal/journal-send.c5
-rw-r--r--src/journal/journalctl.c14
-rw-r--r--src/libsystemd-terminal/subterm.c8
-rw-r--r--src/random-seed/random-seed.c15
-rw-r--r--src/shared/copy.c11
-rw-r--r--src/shared/util.c9
-rw-r--r--src/shared/util.h2
-rw-r--r--src/systemctl/systemctl.c9
-rw-r--r--src/tty-ask-password-agent/tty-ask-password-agent.c12
-rw-r--r--src/vconsole/vconsole-setup.c10
13 files changed, 51 insertions, 77 deletions
diff --git a/src/core/ima-setup.c b/src/core/ima-setup.c
index 3416802bcb..3470ca1768 100644
--- a/src/core/ima-setup.c
+++ b/src/core/ima-setup.c
@@ -42,13 +42,13 @@
#define IMA_POLICY_PATH "/etc/ima/ima-policy"
int ima_setup(void) {
+ int r = 0;
#ifdef HAVE_IMA
struct stat st;
- ssize_t policy_size = 0, written = 0;
+ ssize_t policy_size = 0;
char *policy;
_cleanup_close_ int policyfd = -1, imafd = -1;
- int result = 0;
if (stat(IMA_POLICY_PATH, &st) < 0)
return 0;
@@ -81,13 +81,13 @@ int ima_setup(void) {
policy = mmap(NULL, policy_size, PROT_READ, MAP_PRIVATE, policyfd, 0);
if (policy == MAP_FAILED) {
log_error_errno(errno, "mmap() failed (%m), freezing");
- result = -errno;
+ r = -errno;
goto out;
}
- written = loop_write(imafd, policy, (size_t)policy_size, false);
- if (written != policy_size) {
- log_error_errno(errno, "Failed to load the IMA custom policy file %s (%m), ignoring.",
+ r = loop_write(imafd, policy, (size_t)policy_size, false);
+ if (r < 0) {
+ log_error_errno(r, "Failed to load the IMA custom policy file %s (%m), ignoring.",
IMA_POLICY_PATH);
goto out_mmap;
}
@@ -97,9 +97,6 @@ int ima_setup(void) {
out_mmap:
munmap(policy, policy_size);
out:
- if (result)
- return result;
#endif /* HAVE_IMA */
-
- return 0;
+ return r;
}
diff --git a/src/core/machine-id-setup.c b/src/core/machine-id-setup.c
index 74582a5dcd..d91a02cf15 100644
--- a/src/core/machine-id-setup.c
+++ b/src/core/machine-id-setup.c
@@ -182,7 +182,7 @@ static int write_machine_id(int fd, char id[34]) {
assert(id);
lseek(fd, 0, SEEK_SET);
- if (loop_write(fd, id, 33, false) == 33)
+ if (loop_write(fd, id, 33, false) == 0)
return 0;
return -errno;
@@ -329,10 +329,9 @@ int machine_id_setup(const char *root) {
if (r < 0)
return r;
- if (S_ISREG(st.st_mode) && writable) {
+ if (S_ISREG(st.st_mode) && writable)
if (write_machine_id(fd, id) == 0)
return 0;
- }
fd = safe_close(fd);
diff --git a/src/journal/compress.c b/src/journal/compress.c
index c4c715be2f..9440fcd60e 100644
--- a/src/journal/compress.c
+++ b/src/journal/compress.c
@@ -400,12 +400,9 @@ int compress_stream_xz(int fdf, int fdt, off_t max_bytes) {
n = sizeof(out) - s.avail_out;
- errno = 0;
k = loop_write(fdt, out, n, false);
if (k < 0)
return k;
- if (k != n)
- return errno ? -errno : -EIO;
if (ret == LZMA_STREAM_END) {
log_debug("XZ compression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)",
@@ -478,8 +475,6 @@ int compress_stream_lz4(int fdf, int fdt, off_t max_bytes) {
n = loop_write(fdt, out, r, false);
if (n < 0)
return n;
- if (n != r)
- return errno ? -errno : -EIO;
total_out += sizeof(header) + r;
@@ -559,12 +554,9 @@ int decompress_stream_xz(int fdf, int fdt, off_t max_bytes) {
max_bytes -= n;
}
- errno = 0;
k = loop_write(fdt, out, n, false);
if (k < 0)
return k;
- if (k != n)
- return errno ? -errno : -EIO;
if (ret == LZMA_STREAM_END) {
log_debug("XZ decompression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)",
@@ -645,12 +637,9 @@ int decompress_stream_lz4(int fdf, int fdt, off_t max_bytes) {
return -EFBIG;
}
- errno = 0;
n = loop_write(fdt, out, r, false);
if (n < 0)
return n;
- if (n != r)
- return errno ? -errno : -EIO;
}
log_debug("LZ4 decompression finished (%zu -> %zu bytes, %.1f%%)",
diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c
index 887b957c4d..56a96c55dd 100644
--- a/src/journal/journal-send.c
+++ b/src/journal/journal-send.c
@@ -453,13 +453,10 @@ _public_ int sd_journal_stream_fd(const char *identifier, int priority, int leve
header[l++] = '0';
header[l++] = '\n';
- r = (int) loop_write(fd, header, l, false);
+ r = loop_write(fd, header, l, false);
if (r < 0)
return r;
- if ((size_t) r != l)
- return -errno;
-
r = fd;
fd = -1;
return r;
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 3cec9a0c84..b2f6966fca 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -1406,17 +1406,15 @@ static int setup_keys(void) {
h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
h.fsprg_state_size = htole64(state_size);
- l = loop_write(fd, &h, sizeof(h), false);
- if (l < 0 || (size_t) l != sizeof(h)) {
- log_error_errno(EIO, "Failed to write header: %m");
- r = -EIO;
+ r = loop_write(fd, &h, sizeof(h), false);
+ if (r < 0) {
+ log_error_errno(r, "Failed to write header: %m");
goto finish;
}
- l = loop_write(fd, state, state_size, false);
- if (l < 0 || (size_t) l != state_size) {
- log_error_errno(EIO, "Failed to write state: %m");
- r = -EIO;
+ r = loop_write(fd, state, state_size, false);
+ if (r < 0) {
+ log_error_errno(r, "Failed to write state: %m");
goto finish;
}
diff --git a/src/libsystemd-terminal/subterm.c b/src/libsystemd-terminal/subterm.c
index 75a25e5590..78efc9d7c0 100644
--- a/src/libsystemd-terminal/subterm.c
+++ b/src/libsystemd-terminal/subterm.c
@@ -117,14 +117,14 @@ static int output_winch(Output *o) {
}
static int output_flush(Output *o) {
- ssize_t len;
+ int r;
if (o->n_obuf < 1)
return 0;
- len = loop_write(o->fd, o->obuf, o->n_obuf, false);
- if (len < 0)
- return log_error_errno(len, "error: cannot write to TTY (%zd): %m", len);
+ r = loop_write(o->fd, o->obuf, o->n_obuf, false);
+ if (r < 0)
+ return log_error_errno(r, "error: cannot write to TTY: %m");
o->n_obuf = 0;
diff --git a/src/random-seed/random-seed.c b/src/random-seed/random-seed.c
index 40eaaf46d9..06c1239601 100644
--- a/src/random-seed/random-seed.c
+++ b/src/random-seed/random-seed.c
@@ -113,12 +113,9 @@ int main(int argc, char *argv[]) {
} else {
lseek(seed_fd, 0, SEEK_SET);
- k = loop_write(random_fd, buf, (size_t) k, false);
- if (k <= 0) {
- log_error("Failed to write seed to /dev/urandom: %s", r < 0 ? strerror(-r) : "short write");
-
- r = k == 0 ? -EIO : (int) k;
- }
+ r = loop_write(random_fd, buf, (size_t) k, false);
+ if (r < 0)
+ log_error_errno(r, "Failed to write seed to /dev/urandom: %m");
}
} else if (streq(argv[1], "save")) {
@@ -155,10 +152,8 @@ int main(int argc, char *argv[]) {
r = k == 0 ? -EIO : (int) k;
} else {
r = loop_write(seed_fd, buf, (size_t) k, false);
- if (r <= 0) {
- log_error("Failed to write new random seed file: %s", r < 0 ? strerror(-r) : "short write");
- r = r == 0 ? -EIO : r;
- }
+ if (r < 0)
+ log_error_errno(r, "Failed to write new random seed file: %m");
}
finish:
diff --git a/src/shared/copy.c b/src/shared/copy.c
index abb7fbc52b..b8b1ba1866 100644
--- a/src/shared/copy.c
+++ b/src/shared/copy.c
@@ -63,7 +63,7 @@ int copy_bytes(int fdf, int fdt, off_t max_bytes) {
/* As a fallback just copy bits by hand */
{
char buf[m];
- ssize_t k;
+ int r;
n = read(fdf, buf, m);
if (n < 0)
@@ -71,12 +71,9 @@ int copy_bytes(int fdf, int fdt, off_t max_bytes) {
if (n == 0) /* EOF */
break;
- errno = 0;
- k = loop_write(fdt, buf, n, false);
- if (k < 0)
- return k;
- if (k != n)
- return errno ? -errno : -EIO;
+ r = loop_write(fdt, buf, n, false);
+ if (r < 0)
+ return r;
}
diff --git a/src/shared/util.c b/src/shared/util.c
index ff8835b72d..26a4f72b43 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -2292,13 +2292,15 @@ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) {
return n;
}
-ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
+int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
const uint8_t *p = buf;
ssize_t n = 0;
assert(fd >= 0);
assert(buf);
+ errno = 0;
+
while (nbytes > 0) {
ssize_t k;
@@ -2317,14 +2319,15 @@ ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
}
if (k <= 0)
- return n > 0 ? n : (k < 0 ? -errno : 0);
+ /* We were not done yet, and a write error occured. */
+ return errno ? -errno : -EIO;
p += k;
nbytes -= k;
n += k;
}
- return n;
+ return 0;
}
int parse_size(const char *t, off_t base, off_t *size) {
diff --git a/src/shared/util.h b/src/shared/util.h
index 61094cca2f..73bd9012fd 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -425,7 +425,7 @@ int sigaction_many(const struct sigaction *sa, ...);
int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
-ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
+int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
bool is_device_path(const char *path);
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index d356686f78..6e48671ee6 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -7246,12 +7246,9 @@ static int talk_initctl(void) {
return -errno;
}
- errno = 0;
- r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
- if (r) {
- log_error_errno(errno, "Failed to write to "INIT_FIFO": %m");
- return errno > 0 ? -errno : -EIO;
- }
+ r = loop_write(fd, &request, sizeof(request), false);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write to "INIT_FIFO": %m");
return 1;
}
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 fa8448cfae..5fc27f9ae5 100644
--- a/src/tty-ask-password-agent/tty-ask-password-agent.c
+++ b/src/tty-ask-password-agent/tty-ask-password-agent.c
@@ -103,9 +103,9 @@ static int ask_password_plymouth(
if (!packet)
return log_oom();
- k = loop_write(fd, packet, n + 1, true);
- if (k != n + 1)
- return k < 0 ? (int) k : -EIO;
+ r = loop_write(fd, packet, n + 1, true);
+ if (r < 0)
+ return r;
pollfd[POLL_SOCKET].fd = fd;
pollfd[POLL_SOCKET].events = POLLIN;
@@ -165,9 +165,9 @@ static int ask_password_plymouth(
if (asprintf(&packet, "*\002%c%s%n", (int) (strlen(message) + 1), message, &n) < 0)
return -ENOMEM;
- k = loop_write(fd, packet, n+1, true);
- if (k != n + 1)
- return k < 0 ? (int) k : -EIO;
+ r = loop_write(fd, packet, n+1, true);
+ if (r < 0)
+ return r;
accept_cached = false;
p = 0;
diff --git a/src/vconsole/vconsole-setup.c b/src/vconsole/vconsole-setup.c
index b7a536b983..28371711b6 100644
--- a/src/vconsole/vconsole-setup.c
+++ b/src/vconsole/vconsole-setup.c
@@ -54,8 +54,9 @@ static int disable_utf8(int fd) {
if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
r = -errno;
- if (loop_write(fd, "\033%@", 3, false) < 0)
- r = -errno;
+ k = loop_write(fd, "\033%@", 3, false);
+ if (k < 0)
+ r = k;
k = write_string_file("/sys/module/vt/parameters/default_utf8", "0");
if (k < 0)
@@ -86,8 +87,9 @@ static int enable_utf8(int fd) {
r = -errno;
}
- if (loop_write(fd, "\033%G", 3, false) < 0)
- r = -errno;
+ k = loop_write(fd, "\033%G", 3, false);
+ if (k < 0)
+ r = k;
k = write_string_file("/sys/module/vt/parameters/default_utf8", "1");
if (k < 0)
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-06 01:22:30 +0000