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-rw-r--r--src/basic/parse-util.c19
-rw-r--r--src/basic/parse-util.h2
-rw-r--r--src/core/load-fragment.c15
-rw-r--r--src/login/logind-user.c29
-rw-r--r--src/shared/bus-unit-util.c15
-rw-r--r--src/test/test-parse-util.c19
6 files changed, 59 insertions, 40 deletions
diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 6c11b605a9..503a895731 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -532,3 +532,22 @@ int parse_fractional_part_u(const char **p, size_t digits, unsigned *res) {
return 0;
}
+
+int parse_percent(const char *p) {
+ const char *pc, *n;
+ unsigned v;
+ int r;
+
+ pc = endswith(p, "%");
+ if (!pc)
+ return -EINVAL;
+
+ n = strndupa(p, pc - p);
+ r = safe_atou(n, &v);
+ if (r < 0)
+ return r;
+ if (v > 100)
+ return -ERANGE;
+
+ return (int) v;
+}
diff --git a/src/basic/parse-util.h b/src/basic/parse-util.h
index 7dc579a159..73441bb6fd 100644
--- a/src/basic/parse-util.h
+++ b/src/basic/parse-util.h
@@ -105,3 +105,5 @@ static inline int safe_atozu(const char *s, size_t *ret_u) {
int safe_atod(const char *s, double *ret_d);
int parse_fractional_part_u(const char **s, size_t digits, unsigned *res);
+
+int parse_percent(const char *p);
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 17c72aed88..fe60bee789 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -2774,7 +2774,7 @@ int config_parse_cpu_quota(
void *userdata) {
CGroupContext *c = data;
- double percent;
+ int r;
assert(filename);
assert(lvalue);
@@ -2785,18 +2785,13 @@ int config_parse_cpu_quota(
return 0;
}
- if (!endswith(rvalue, "%")) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "CPU quota '%s' not ending in '%%'. Ignoring.", rvalue);
+ r = parse_percent(rvalue);
+ if (r <= 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "CPU quota '%s' invalid. Ignoring.", rvalue);
return 0;
}
- if (sscanf(rvalue, "%lf%%", &percent) != 1 || percent <= 0) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "CPU quota '%s' invalid. Ignoring.", rvalue);
- return 0;
- }
-
- c->cpu_quota_per_sec_usec = (usec_t) (percent * USEC_PER_SEC / 100);
-
+ c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 100U;
return 0;
}
diff --git a/src/login/logind-user.c b/src/login/logind-user.c
index a826321bf0..6d0904f5ca 100644
--- a/src/login/logind-user.c
+++ b/src/login/logind-user.c
@@ -843,7 +843,6 @@ int config_parse_tmpfs_size(
void *userdata) {
size_t *sz = data;
- const char *e;
int r;
assert(filename);
@@ -851,29 +850,17 @@ int config_parse_tmpfs_size(
assert(rvalue);
assert(data);
- e = endswith(rvalue, "%");
- if (e) {
- unsigned long ul;
- char *f;
-
- errno = 0;
- ul = strtoul(rvalue, &f, 10);
- if (errno > 0 || f != e) {
- log_syntax(unit, LOG_ERR, filename, line, errno, "Failed to parse percentage value, ignoring: %s", rvalue);
- return 0;
- }
-
- if (ul <= 0 || ul >= 100) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "Percentage value out of range, ignoring: %s", rvalue);
- return 0;
- }
-
- *sz = PAGE_ALIGN((size_t) ((physical_memory() * (uint64_t) ul) / (uint64_t) 100));
- } else {
+ /* First, try to parse as percentage */
+ r = parse_percent(rvalue);
+ if (r > 0 && r < 100)
+ *sz = PAGE_ALIGN((size_t) ((physical_memory() * (uint64_t) r) / 100U));
+ else {
uint64_t k;
+ /* If the passed argument was not a percentage, or out of range, parse as byte size */
+
r = parse_size(rvalue, 1024, &k);
- if (r < 0 || (uint64_t) (size_t) k != k) {
+ if (r < 0 || k <= 0 || (uint64_t) (size_t) k != k) {
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
return 0;
}
diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c
index 8f4f93ee0c..778c79b3cf 100644
--- a/src/shared/bus-unit-util.c
+++ b/src/shared/bus-unit-util.c
@@ -83,18 +83,14 @@ int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignmen
if (isempty(eq))
r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY);
- else if (endswith(eq, "%")) {
- double percent;
-
- if (sscanf(eq, "%lf%%", &percent) != 1 || percent <= 0) {
- log_error("CPU quota '%s' invalid.", eq);
+ else {
+ r = parse_percent(eq);
+ if (r <= 0) {
+ log_error_errno(r, "CPU quota '%s' invalid.", eq);
return -EINVAL;
}
- r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) percent * USEC_PER_SEC / 100);
- } else {
- log_error("CPU quota needs to be in percent.");
- return -EINVAL;
+ r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) r * USEC_PER_SEC / 100U);
}
goto finish;
@@ -110,6 +106,7 @@ int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignmen
char *n;
usec_t t;
size_t l;
+
r = parse_sec(eq, &t);
if (r < 0)
return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq);
diff --git a/src/test/test-parse-util.c b/src/test/test-parse-util.c
index 7d8677e17c..0a76308f72 100644
--- a/src/test/test-parse-util.c
+++ b/src/test/test-parse-util.c
@@ -475,6 +475,24 @@ static void test_safe_atod(void) {
assert_se(*e == ',');
}
+static void test_parse_percent(void) {
+ assert_se(parse_percent("") == -EINVAL);
+ assert_se(parse_percent("foo") == -EINVAL);
+ assert_se(parse_percent("0") == -EINVAL);
+ assert_se(parse_percent("50") == -EINVAL);
+ assert_se(parse_percent("100") == -EINVAL);
+ assert_se(parse_percent("-1") == -EINVAL);
+ assert_se(parse_percent("0%") == 0);
+ assert_se(parse_percent("55%") == 55);
+ assert_se(parse_percent("100%") == 100);
+ assert_se(parse_percent("-7%") == -ERANGE);
+ assert_se(parse_percent("107%") == -ERANGE);
+ assert_se(parse_percent("%") == -EINVAL);
+ assert_se(parse_percent("%%") == -EINVAL);
+ assert_se(parse_percent("%1") == -EINVAL);
+ assert_se(parse_percent("1%%") == -EINVAL);
+}
+
int main(int argc, char *argv[]) {
log_parse_environment();
log_open();
@@ -488,6 +506,7 @@ int main(int argc, char *argv[]) {
test_safe_atou16();
test_safe_atoi16();
test_safe_atod();
+ test_parse_percent();
return 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-25 09:29:42 +0000