diff options
Diffstat (limited to 'src/ipcpd/udp/main.c')
| -rw-r--r-- | src/ipcpd/udp/main.c | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/src/ipcpd/udp/main.c b/src/ipcpd/udp/main.c index 26f993ce..8341aac1 100644 --- a/src/ipcpd/udp/main.c +++ b/src/ipcpd/udp/main.c @@ -788,7 +788,11 @@ static int ipcp_udp_reg(const uint8_t * hash) uint32_t dns_addr; uint32_t ip_addr; #endif - char hashstr[ipcp_dir_hash_strlen() + 1]; + char * hashstr; + + hashstr = malloc(ipcp_dir_hash_strlen() + 1); + if (hashstr == NULL) + return -1; assert(hash); @@ -797,6 +801,7 @@ static int ipcp_udp_reg(const uint8_t * hash) if (shim_data_reg_add_entry(udp_data.shim_data, hash)) { log_err("Failed to add " HASH_FMT " to local registry.", HASH_VAL(hash)); + free(hashstr); return -1; } @@ -810,11 +815,13 @@ static int ipcp_udp_reg(const uint8_t * hash) if (inet_ntop(AF_INET, &ip_addr, ipstr, INET_ADDRSTRLEN) == NULL) { + free(hashstr); return -1; } if (inet_ntop(AF_INET, &dns_addr, dnsstr, INET_ADDRSTRLEN) == NULL) { + free(hashstr); return -1; } @@ -823,12 +830,15 @@ static int ipcp_udp_reg(const uint8_t * hash) if (ddns_send(cmd)) { shim_data_reg_del_entry(udp_data.shim_data, hash); + free(hashstr); return -1; } } #endif log_dbg("Registered " HASH_FMT ".", HASH_VAL(hash)); + free(hashstr); + return 0; } @@ -840,10 +850,14 @@ static int ipcp_udp_unreg(const uint8_t * hash) char cmd[100]; uint32_t dns_addr; #endif - char hashstr[ipcp_dir_hash_strlen() + 1]; + char * hashstr; assert(hash); + hashstr = malloc(ipcp_dir_hash_strlen() + 1); + if (hashstr == NULL) + return -1; + ipcp_hash_str(hashstr, hash); #ifdef HAVE_DDNS @@ -854,6 +868,7 @@ static int ipcp_udp_unreg(const uint8_t * hash) if (dns_addr != 0) { if (inet_ntop(AF_INET, &dns_addr, dnsstr, INET_ADDRSTRLEN) == NULL) { + free(hashstr); return -1; } sprintf(cmd, "server %s\nupdate delete %s A\nsend\nquit\n", @@ -867,24 +882,32 @@ static int ipcp_udp_unreg(const uint8_t * hash) log_dbg("Unregistered " HASH_FMT ".", HASH_VAL(hash)); + free(hashstr); + return 0; } static int ipcp_udp_query(const uint8_t * hash) { uint32_t ip_addr = 0; + char * hashstr; struct hostent * h; #ifdef HAVE_DDNS uint32_t dns_addr = 0; #endif - char hashstr[ipcp_dir_hash_strlen() + 1]; assert(hash); + hashstr = malloc(ipcp_dir_hash_strlen() + 1); + if (hashstr == NULL) + return -ENOMEM; + ipcp_hash_str(hashstr, hash); - if (shim_data_dir_has(udp_data.shim_data, hash)) + if (shim_data_dir_has(udp_data.shim_data, hash)) { + free(hashstr); return 0; + } #ifdef HAVE_DDNS dns_addr = udp_data.dns_addr; @@ -893,6 +916,7 @@ static int ipcp_udp_query(const uint8_t * hash) ip_addr = ddns_resolve(hashstr, dns_addr); if (ip_addr == 0) { log_dbg("Could not resolve %s.", hashstr); + free(hashstr); return -1; } } else { @@ -900,6 +924,7 @@ static int ipcp_udp_query(const uint8_t * hash) h = gethostbyname(hashstr); if (h == NULL) { log_dbg("Could not resolve %s.", hashstr); + free(hashstr); return -1; } @@ -910,9 +935,12 @@ static int ipcp_udp_query(const uint8_t * hash) if (shim_data_dir_add_entry(udp_data.shim_data, hash, ip_addr)) { log_err("Failed to add directory entry."); + free(hashstr); return -1; } + free(hashstr); + return 0; } |