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authorSusant Sahani <susant@redhat.com>2017-02-28 16:53:58 +0530
committerSusant Sahani <susant@redhat.com>2017-02-28 16:53:58 +0530
commit2680894816b49b9e55f0a42a420d0540892e9b61 (patch)
tree8eceadd279594adddcd93c733825cc54dbce732b /src
parentccdda9556ee67a6b1c12e2a33cc309ad8fb06996 (diff)
socket-util: introduce address_label_valid
Diffstat (limited to 'src')
-rw-r--r--src/basic/socket-util.c20
-rw-r--r--src/basic/socket-util.h1
2 files changed, 21 insertions, 0 deletions
diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c
index 17e90a8994..e5847dce00 100644
--- a/src/basic/socket-util.c
+++ b/src/basic/socket-util.c
@@ -900,6 +900,26 @@ bool ifname_valid(const char *p) {
return true;
}
+bool address_label_valid(const char *p) {
+
+ if (isempty(p))
+ return false;
+
+ if (strlen(p) >= IFNAMSIZ)
+ return false;
+
+ while (*p) {
+ if ((uint8_t) *p >= 127U)
+ return false;
+
+ if ((uint8_t) *p <= 31U)
+ return false;
+ p++;
+ }
+
+ return true;
+}
+
int getpeercred(int fd, struct ucred *ucred) {
socklen_t n = sizeof(struct ucred);
struct ucred u;
diff --git a/src/basic/socket-util.h b/src/basic/socket-util.h
index 3c42e220e5..73c3a339fc 100644
--- a/src/basic/socket-util.h
+++ b/src/basic/socket-util.h
@@ -126,6 +126,7 @@ int ip_tos_to_string_alloc(int i, char **s);
int ip_tos_from_string(const char *s);
bool ifname_valid(const char *p);
+bool address_label_valid(const char *p);
int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret);