Modify bb_lookup_port to allow the protocol to be specified, allowing

/etc/services support for inetd, netcat and tftp.

diff --git a/include/libbb.h b/include/libbb.h
index b2592c8..86e4fbe 100644 (file)
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -297,7 +297,7 @@ extern struct hostent *xgethostbyname2(const char *name, int af);
 extern int create_icmp_socket(void);
 extern int create_icmp6_socket(void);
 extern int xconnect(struct sockaddr_in *s_addr);
-extern unsigned short bb_lookup_port(const char *port, unsigned short default_port);
+extern unsigned short bb_lookup_port(const char *port, const char *protocol, unsigned short default_port);
 extern void bb_lookup_host(struct sockaddr_in *s_in, const char *host);
 
 //#warning wrap this?

diff --git a/libbb/xconnect.c b/libbb/xconnect.c
index 29b9847..2443bb2 100644 (file)
--- a/libbb/xconnect.c
+++ b/libbb/xconnect.c
@@ -23,7 +23,7 @@
  * If "port" is a name it is looked up in /etc/services, if it isnt found return
  * default_port
  */
-unsigned short bb_lookup_port(const char *port, unsigned short default_port)
+unsigned short bb_lookup_port(const char *port, const char *protocol, unsigned short default_port)
 {
        unsigned short port_nr = htons(default_port);
        if (port) {
@@ -37,7 +37,7 @@ unsigned short bb_lookup_port(const char *port, unsigned short default_port)
                errno = 0;
                port_long = strtol(port, &endptr, 10);
                if (errno != 0 || *endptr!='\0' || endptr==port || port_long < 0 || port_long > 65535) {
-                       struct servent *tserv = getservbyname(port, "tcp");
+                       struct servent *tserv = getservbyname(port, protocol);
                        if (tserv) {
                                port_nr = tserv->s_port;
                        }

diff --git a/networking/ftpgetput.c b/networking/ftpgetput.c
index 27b272a..4f6be11 100644 (file)
--- a/networking/ftpgetput.c
+++ b/networking/ftpgetput.c
@@ -349,7 +349,7 @@ int ftpgetput_main(int argc, char **argv)
         * and we want to connect to only one IP... */
        server->s_in = &s_in;
        bb_lookup_host(&s_in, argv[optind]);
-       s_in.sin_port = bb_lookup_port(port, 21);
+       s_in.sin_port = bb_lookup_port(port, "tcp", 21);
        if (verbose_flag) {
                printf("Connecting to %s[%s]:%d\n",
                                argv[optind], inet_ntoa(s_in.sin_addr), ntohs(s_in.sin_port));

diff --git a/networking/inetd.c b/networking/inetd.c
index d225527..24415fe 100644 (file)
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -610,19 +610,13 @@ static void config(int signum)
                        sep->se_ctrladdr_in.sin_family = AF_INET;
                        sep->se_ctrladdr_size = sizeof sep->se_ctrladdr_in;
                        {
-                               u_short port = htons(atoi(sep->se_service));
-
-                               if (!port) {
-                                       struct servent *sp;
-                                       sp = getservbyname(sep->se_service,
-                                                               sep->se_proto);
-                                       if (sp == 0) {
-                                               syslog(LOG_ERR,
-                                                   "%s/%s: unknown service",
-                                                   sep->se_service, sep->se_proto);
-                                               continue;
-                                       }
-                                       port = sp->s_port;
+                               u_short port = bb_lookup_port(sep->se_service, sep->se_proto, 0);
+
+                               if (port == 0) {
+                                       syslog(LOG_ERR,
+                                           "%s/%s: unknown service",
+                                           sep->se_service, sep->se_proto);
+                                       continue;
                                }
                                if (port != sep->se_ctrladdr_in.sin_port) {
                                        sep->se_ctrladdr_in.sin_port = port;

diff --git a/networking/nc.c b/networking/nc.c
index 4888ccc..ecb4a00 100644 (file)
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -61,7 +61,7 @@ int nc_main(int argc, char **argv)
                                do_listen++;
                                break;
                        case 'p':
-                               lport = atoi(optarg);
+                               lport = bb_lookup_port(optarg, "tcp", 0);
                                break;
                        case 'i':
                                delay = atoi(optarg);
@@ -96,7 +96,7 @@ int nc_main(int argc, char **argv)
 
        if (lport != 0) {
                memset(&address.sin_addr, 0, sizeof(address.sin_addr));
-               address.sin_port = htons(lport);
+               address.sin_port = lport;
 
                if (bind(sfd, (struct sockaddr *) &address, sizeof(address)) < 0)
                        bb_perror_msg_and_die("bind");
@@ -117,7 +117,7 @@ int nc_main(int argc, char **argv)
                hostinfo = xgethostbyname(argv[optind]);
 
                address.sin_addr = *(struct in_addr *) *hostinfo->h_addr_list;
-               address.sin_port = htons(atoi(argv[optind+1]));
+               address.sin_port = bb_lookup_port(argv[optind+1], "tcp", 0);
 
                if (connect(sfd, (struct sockaddr *) &address, sizeof(address)) < 0)
                        bb_perror_msg_and_die("connect");

diff --git a/networking/telnet.c b/networking/telnet.c
index 110c9d1..1b71bf2 100644 (file)
--- a/networking/telnet.c
+++ b/networking/telnet.c
@@ -599,7 +599,7 @@ extern int telnet_main(int argc, char** argv)
                bb_show_usage();
        
        bb_lookup_host(&s_in, argv[1]);
-       s_in.sin_port = bb_lookup_port((argc == 3) ? argv[2] : "telnet", 23);
+       s_in.sin_port = bb_lookup_port((argc == 3) ? argv[2] : "telnet", "tcp", 23);
        
        G.netfd = xconnect(&s_in);
 

diff --git a/networking/tftp.c b/networking/tftp.c
index a1a79a0..1468576 100644 (file)
--- a/networking/tftp.c
+++ b/networking/tftp.c
@@ -138,7 +138,7 @@ static char *tftp_option_get(char *buf, int len, char *option)
 #endif
 
 static inline int tftp(const int cmd, const struct hostent *host,
-       const char *remotefile, int localfd, const int port, int tftp_bufsize)
+       const char *remotefile, int localfd, const unsigned short port, int tftp_bufsize)
 {
        const int cmd_get = cmd & tftp_cmd_get;
        const int cmd_put = cmd & tftp_cmd_put;
@@ -179,7 +179,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
        bind(socketfd, (struct sockaddr *)&sa, len);
 
        sa.sin_family = host->h_addrtype;
-       sa.sin_port = htons(port);
+       sa.sin_port = port;
        memcpy(&sa.sin_addr, (struct in_addr *) host->h_addr,
                   sizeof(sa.sin_addr));
 
@@ -332,7 +332,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
 
                                timeout = 0;
 
-                               if (sa.sin_port == htons(port)) {
+                               if (sa.sin_port == port) {
                                        sa.sin_port = from.sin_port;
                                }
                                if (sa.sin_port == from.sin_port) {
@@ -487,7 +487,7 @@ int tftp_main(int argc, char **argv)
        struct hostent *host = NULL;
        char *localfile = NULL;
        char *remotefile = NULL;
-       int port = 69;
+       int port;
        int cmd = 0;
        int fd = -1;
        int flags = 0;
@@ -564,10 +564,7 @@ int tftp_main(int argc, char **argv)
        }
 
        host = xgethostbyname(argv[optind]);
-
-       if (optind + 2 == argc) {
-               port = atoi(argv[optind + 1]);
-       }
+       port = bb_lookup_port(argv[optind + 1], "udp", 69);
 
 #ifdef CONFIG_FEATURE_TFTP_DEBUG
        printf("using server \"%s\", remotefile \"%s\", "

diff --git a/networking/wget.c b/networking/wget.c
index 8bed736..c92771e 100644 (file)
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -537,11 +537,11 @@ void parse_url(char *url, struct host_info *h)
        char *cp, *sp, *up, *pp;
 
        if (strncmp(url, "http://", 7) == 0) {
-               h->port = bb_lookup_port("http", 80);
+               h->port = bb_lookup_port("http", "tcp", 80);
                h->host = url + 7;
                h->is_ftp = 0;
        } else if (strncmp(url, "ftp://", 6) == 0) {
-               h->port = bb_lookup_port("ftp", 21);
+               h->port = bb_lookup_port("ftp", "tfp", 21);
                h->host = url + 6;
                h->is_ftp = 1;
        } else
@@ -834,7 +834,7 @@ progressmeter(int flag)
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *     $Id: wget.c,v 1.64 2003/12/27 00:21:47 bug1 Exp $
+ *     $Id: wget.c,v 1.65 2004/01/17 05:03:31 bug1 Exp $
  */