return 0;
}
+static char *sun_prep(struct sockaddr_un *sun) {
+ const char *dir=getenv("UDP_PRELOAD_DIR");
+ if (!dir) { errno=ECHILD; return 0; }
+
+ memset(sun,0,sizeof(*sun));
+ sun->sun_family=AF_UNIX;
+ int dl = strlen(dir);
+ if (dl + 1 + ADDRPORTSTRLEN + 1 > sizeof(sun->sun_path)) {
+ errno=ENAMETOOLONG; return 0;
+ }
+ strcpy(sun->sun_path,dir);
+ char *p=sun->sun_path+dl;
+ *p++='/';
+ return p;
+}
+
WRAP(socket) {
if (!((domain==AF_INET || domain==AF_INET6) &&
type==SOCK_DGRAM))
WRAP(bind) {
fdinfo *ent=lookup(fd);
if (!ent) return old_bind(fd,addr,addrlen);
- const char *dir = getenv("UDP_PRELOAD_DIR");
- if (!dir) { errno=ECHILD; return -1; }
struct sockaddr_un sun;
- memset(&sun,0,sizeof(sun));
- sun.sun_family=AF_UNIX;
- int dl = strlen(dir);
- if (dl + 1 + ADDRPORTSTRLEN + 1 > sizeof(sun.sun_path)) {
- errno=ENAMETOOLONG; return -1;
- }
- strcpy(sun.sun_path,dir);
- char *p=sun.sun_path+dl;
- *p++='/';
+ char *p=sun_prep(&sun);
if (addrport2str(p,addr,addrlen)) return -1;
//fprintf(stderr,"binding %s\n",sun.sun_path);
if (unlink(sun.sun_path) && errno!=ENOENT) return -1;