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-rw-r--r--src/libsystemd/sd-network/sd-network.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/src/libsystemd/sd-network/sd-network.c b/src/libsystemd/sd-network/sd-network.c
index 037ffb6e75..580047d3ab 100644
--- a/src/libsystemd/sd-network/sd-network.c
+++ b/src/libsystemd/sd-network/sd-network.c
@@ -31,6 +31,7 @@
#include "fs-util.h"
#include "macro.h"
#include "parse-util.h"
+#include "stdio-util.h"
#include "string-util.h"
#include "strv.h"
#include "util.h"
@@ -102,16 +103,16 @@ _public_ int sd_network_get_route_domains(char ***ret) {
}
static int network_link_get_string(int ifindex, const char *field, char **ret) {
- _cleanup_free_ char *s = NULL, *p = NULL;
+ char path[strlen("/run/systemd/netif/links/") + DECIMAL_STR_MAX(ifindex) + 1];
+ _cleanup_free_ char *s = NULL;
int r;
assert_return(ifindex > 0, -EINVAL);
assert_return(ret, -EINVAL);
- if (asprintf(&p, "/run/systemd/netif/links/%i", ifindex) < 0)
- return -ENOMEM;
+ xsprintf(path, "/run/systemd/netif/links/%i", ifindex);
- r = parse_env_file(p, NEWLINE, field, &s, NULL);
+ r = parse_env_file(path, NEWLINE, field, &s, NULL);
if (r == -ENOENT)
return -ENODATA;
if (r < 0)
@@ -126,17 +127,16 @@ static int network_link_get_string(int ifindex, const char *field, char **ret) {
}
static int network_link_get_strv(int ifindex, const char *key, char ***ret) {
- _cleanup_free_ char *p = NULL, *s = NULL;
+ char path[strlen("/run/systemd/netif/links/") + DECIMAL_STR_MAX(ifindex) + 1];
_cleanup_strv_free_ char **a = NULL;
+ _cleanup_free_ char *s = NULL;
int r;
assert_return(ifindex > 0, -EINVAL);
assert_return(ret, -EINVAL);
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, key, &s, NULL);
+ xsprintf(path, "/run/systemd/netif/links/%i", ifindex);
+ r = parse_env_file(path, NEWLINE, key, &s, NULL);
if (r == -ENOENT)
return -ENODATA;
if (r < 0)
@@ -208,9 +208,10 @@ _public_ int sd_network_link_get_route_domains(int ifindex, char ***ret) {
}
static int network_link_get_ifindexes(int ifindex, const char *key, int **ret) {
- _cleanup_free_ char *p = NULL, *s = NULL;
+ char path[strlen("/run/systemd/netif/links/") + DECIMAL_STR_MAX(ifindex) + 1];
_cleanup_strv_free_ char **a = NULL;
_cleanup_free_ int *ifis = NULL;
+ _cleanup_free_ char *s = NULL;
size_t allocated = 0, c = 0;
const char *x;
int r;
@@ -218,10 +219,8 @@ static int network_link_get_ifindexes(int ifindex, const char *key, int **ret) {
assert_return(ifindex > 0, -EINVAL);
assert_return(ret, -EINVAL);
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, key, &s, NULL);
+ xsprintf(path, "/run/systemd/netif/links/%i", ifindex);
+ r = parse_env_file(path, NEWLINE, key, &s, NULL);
if (r == -ENOENT)
return -ENODATA;
if (r < 0)