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socket-util: introduce address_label_valid

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This commit is contained in:
Susant Sahani 2017-02-28 16:53:58 +05:30
parent ccdda9556e
commit 2680894816
2 changed files with 21 additions and 0 deletions
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20
src/basic/socket-util.c
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@ -900,6 +900,26 @@ bool ifname_valid(const char *p) {
return true; 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) { int getpeercred(int fd, struct ucred *ucred) {
socklen_t n = sizeof(struct ucred); socklen_t n = sizeof(struct ucred);
struct ucred u; struct ucred u;

1
src/basic/socket-util.h
View File

@ -126,6 +126,7 @@ int ip_tos_to_string_alloc(int i, char **s);
int ip_tos_from_string(const char *s); int ip_tos_from_string(const char *s);
bool ifname_valid(const char *p); bool ifname_valid(const char *p);
bool address_label_valid(const char *p);
int getpeercred(int fd, struct ucred *ucred); int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret); int getpeersec(int fd, char **ret);