inetd: make it NOMMU-capable and IPv6-friendly. Lots of renames

of variable/function names

Total: -2474 bytes
   text    data     bss     dec     hex filename
 802215     661    7452  810328   c5d58 busybox_old
 800120     661    7428  808209   c5511 busybox_unstripped

3 files changed, 28 insertions, 19 deletions

diff --git a/libbb/create_icmp6_socket.c b/libbb/create_icmp6_socket.c
index 51899cdc5..a22ac5d02 100644
--- a/libbb/create_icmp6_socket.c
+++ b/libbb/create_icmp6_socket.c
@@ -2,27 +2,26 @@
 /*
  * Utility routines.
  *
- * create raw socket for icmp (IPv6 version) protocol test permission
+ * create raw socket for icmp (IPv6 version) protocol
  * and drop root privileges if running setuid
- *
  */
 
-//#include <sys/types.h>
-//#include <netdb.h>
-//#include <sys/socket.h>
 #include "libbb.h"
 
 #if ENABLE_FEATURE_IPV6
 int create_icmp6_socket(void)
 {
-        struct protoent *proto;
         int sock;
-
+#if 0
+        struct protoent *proto;
         proto = getprotobyname("ipv6-icmp");
         /* if getprotobyname failed, just silently force
          * proto->p_proto to have the correct value for "ipv6-icmp" */
         sock = socket(AF_INET6, SOCK_RAW,
                         (proto ? proto->p_proto : IPPROTO_ICMPV6));
+#else
+        sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
+#endif
         if (sock < 0) {
                 if (errno == EPERM)
                         bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
diff --git a/libbb/create_icmp_socket.c b/libbb/create_icmp_socket.c
index 3a4655885..64beba82b 100644
--- a/libbb/create_icmp_socket.c
+++ b/libbb/create_icmp_socket.c
@@ -2,26 +2,25 @@
 /*
  * Utility routines.
  *
- * create raw socket for icmp protocol test permission
+ * create raw socket for icmp protocol
  * and drop root privileges if running setuid
- *
  */
 
-//#include <sys/types.h>
-//#include <netdb.h>
-//#include <sys/socket.h>
 #include "libbb.h"
 
 int create_icmp_socket(void)
 {
-        struct protoent *proto;
         int sock;
-
+#if 0
+        struct protoent *proto;
         proto = getprotobyname("icmp");
         /* if getprotobyname failed, just silently force
          * proto->p_proto to have the correct value for "icmp" */
         sock = socket(AF_INET, SOCK_RAW,
                         (proto ? proto->p_proto : 1)); /* 1 == ICMP */
+#else
+        sock = socket(AF_INET, SOCK_RAW, 1); /* 1 == ICMP */
+#endif
         if (sock < 0) {
                 if (errno == EPERM)
                         bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
diff --git a/libbb/xconnect.c b/libbb/xconnect.c
index 03ae77329..950aee826 100644
--- a/libbb/xconnect.c
+++ b/libbb/xconnect.c
@@ -132,11 +132,15 @@ USE_FEATURE_IPV6(sa_family_t af,)
 
         /* Ugly parsing of host:addr */
         if (ENABLE_FEATURE_IPV6 && host[0] == '[') {
+                /* Even uglier parsing of [xx]:nn */
                 host++;
                 cp = strchr(host, ']');
-                if (!cp || cp[1] != ':') /* Malformed: must have [xx]:nn */
-                        bb_error_msg_and_die("bad address '%s'", org_host);
-                        //return r; /* return NULL */
+                if (!cp || cp[1] != ':') { /* Malformed: must have [xx]:nn */
+                        bb_error_msg("bad address '%s'", org_host);
+                        if (ai_flags & DIE_ON_ERROR)
+                                xfunc_die();
+                        return NULL;
+                }
         } else {
                 cp = strrchr(host, ':');
                 if (ENABLE_FEATURE_IPV6 && cp && strchr(host, ':') != cp) {
@@ -144,13 +148,19 @@ USE_FEATURE_IPV6(sa_family_t af,)
                         cp = NULL; /* it's not a port spec */
                 }
         }
-        if (cp) {
+        if (cp) { /* points to ":" or "]:" */
                 int sz = cp - host + 1;
                 host = safe_strncpy(alloca(sz), host, sz);
                 if (ENABLE_FEATURE_IPV6 && *cp != ':')
                         cp++; /* skip ']' */
                 cp++; /* skip ':' */
-                port = xatou16(cp);
+                port = bb_strtou(cp, NULL, 10);
+                if (errno || (unsigned)port > 0xffff) {
+                        bb_error_msg("bad port spec '%s'", org_host);
+                        if (ai_flags & DIE_ON_ERROR)
+                                xfunc_die();
+                        return NULL;
+                }
         }
 
         memset(&hint, 0 , sizeof(hint));
@@ -221,6 +231,7 @@ len_and_sockaddr* xdotted2sockaddr(const char *host, int port)
         return str2sockaddr(host, port, AF_UNSPEC, AI_NUMERICHOST | DIE_ON_ERROR);
 }
 
+#undef xsocket_type
 int xsocket_type(len_and_sockaddr **lsap, USE_FEATURE_IPV6(int family,) int sock_type)
 {
         SKIP_FEATURE_IPV6(enum { family = AF_INET };)