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added function to compare struct sockaddr's

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git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@59 8ec27952-4edc-4aab-86aa-e87bb2611832
This commit is contained in:
Steffen Vogel 2014-06-05 09:35:38 +00:00
parent 08f14a1dc7
commit 6fc85c49ab
2 changed files with 37 additions and 0 deletions
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14
include/utils.h
View file

@ -15,6 +15,7 @@
struct config;
struct sockaddr_in;
struct sockaddr;
/// The log level which is passed as first argument to print()
enum log_level
@ -55,6 +56,19 @@ int resolve_addr(const char *addr, struct sockaddr_in *sa, int flags);
*/
void init_realtime(struct config *g);
/** Compare two socket addresses based on their family and address.
*
* Only the family and the address is compared.
* Port numbers etc are ignored.
*
* @param a First address
* @param b Second address
* @return
* - 0 if the addresses are equal
* - otherwise they are not equal
*/
int sockaddr_cmp(struct sockaddr *a, struct sockaddr *b);
/// Check assertion and exit if failed.
#define assert(exp) do { \
if (!(exp)) { \

23
src/utils.c
View file

@ -90,6 +90,29 @@ int resolve_addr(const char *addr, struct sockaddr_in *sa, int flags)
return 0;
}
int sockaddr_cmp(struct sockaddr *a, struct sockaddr *b)
{
if (a->sa_family == b->sa_family) {
switch (a->sa_family) {
case AF_INET: {
struct sockaddr_in *ai = (struct sockaddr_in *) a;
struct sockaddr_in *bi = (struct sockaddr_in *) b;
return memcmp(&ai->sin_addr, &bi->sin_addr, sizeof(struct in_addr));
}
case AF_INET6: {
struct sockaddr_in6 *ai = (struct sockaddr_in6 *) a;
struct sockaddr_in6 *bi = (struct sockaddr_in6 *) b;
return memcmp(&ai->sin6_addr, &bi->sin6_addr, sizeof(struct in6_addr));
}
}
}
return -1;
}
static cpu_set_t to_cpu_set_t(int set)
{
cpu_set_t cset;