From 2c1dec428c6e1d1bb6675847a5046a4fabdfe4c4 Mon Sep 17 00:00:00 2001
From: Stef Walter <stef@memberwebs.com>
Date: Thu, 29 Apr 2004 03:55:57 +0000
Subject: - Added documentation - Fixed bugs - Added support for dns to
 sock_any

---
 common/sock_any.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 92 insertions(+), 7 deletions(-)

(limited to 'common/sock_any.c')

diff --git a/common/sock_any.c b/common/sock_any.c
index b2bde01..f01933b 100644
--- a/common/sock_any.c
+++ b/common/sock_any.c
@@ -3,6 +3,7 @@
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <netdb.h>
 
 #include "sock_any.h"
 
@@ -11,20 +12,47 @@
 int sock_any_pton(const char* addr, struct sockaddr_any* any, int defport)
 {
   size_t l;
-  const char* t;
+  char buf[256];   /* TODO: Use a constant */
+  char* t;
+  char* t2;
 
   memset(any, 0, sizeof(*any));
 
+  /* Just a port? */
+  do
+  {
+    #define PORT_CHARS "0123456789"
+    #define PORT_MIN 1
+    #define PORT_MAX 5
+
+    int port = 0;
+
+    l = strspn(addr, PORT_CHARS);
+    if(l < PORT_MIN || l > PORT_MAX || addr[l] != 0)
+      break;
+
+    port = strtol(t, &t2, 10);
+    if(*t2 || port <= 0 || port >= 65536)
+      break;
+
+    any->s.in.sin_family = AF_INET;
+    any->s.in.sin_port = htons((unsigned short)(port <= 0 ? defport : port));
+    any->s.in.sin_addr.s_addr = 0;
+
+    any->namelen = sizeof(any->s.in);
+    return AF_INET;
+  }
+  while(0);
+
   /* Look and see if we can parse an ipv4 address */
   do
   {
+    #define IPV4_PORT_CHARS
     #define IPV4_CHARS  "0123456789."
     #define IPV4_MIN    3
     #define IPV4_MAX    18
 
     int port = 0;
-    char buf[IPV4_MAX + 1];
-
     t = NULL;
 
     l = strlen(addr);
@@ -51,7 +79,6 @@ int sock_any_pton(const char* addr, struct sockaddr_any* any, int defport)
 
     if(t)
     {
-      char* t2;
       port = strtol(t, &t2, 10);
       if(*t2 || port <= 0 || port >= 65536)
         break;
@@ -76,8 +103,6 @@ int sock_any_pton(const char* addr, struct sockaddr_any* any, int defport)
     #define IPV6_MAX    48
 
     int port = -1;
-    char buf[IPV6_MAX + 1];
-
     t = NULL;
 
     l = strlen(addr);
@@ -131,9 +156,11 @@ int sock_any_pton(const char* addr, struct sockaddr_any* any, int defport)
   while(0);
 #endif
 
+  /* A unix socket path */
   do
   {
-    if(strchr(addr, ':'))
+    /* No colon and must have a path component */
+    if(strchr(addr, ':') || !strchr(addr, '/'))
       break;
 
     l = strlen(addr);
@@ -148,6 +175,64 @@ int sock_any_pton(const char* addr, struct sockaddr_any* any, int defport)
   }
   while(0);
 
+  /* A DNS name and a port? */
+  do
+  {
+    struct addrinfo* res;
+    int port = 0;
+    t = NULL;
+
+    l = strlen(addr);
+    if(l < 255 && isalpha(addr[0]))
+      break;
+
+    /* Some basic illegal character checks */
+    if(strspn(addr, " /\\") != l)
+      break;
+
+    strcpy(buf, addr);
+
+    /* Find the last set that contains just numbers */
+    t = strchr(buf, ':');
+    if(t)
+    {
+      *t = 0;
+      t++;
+    }
+
+    if(t)
+    {
+      port = strtol(t, &t2, 10);
+      if(*t2 || port <= 0 || port >= 65536)
+        break;
+    }
+
+    /* Try and resolve the domain name */
+    if(getaddrinfo(buf, NULL, NULL, &res) != 0 || !res)
+      break;
+
+    memcpy(&(any->s.a), res->ai_addr, sizeof(struct sockaddr));
+    any->namelen = res->ai_addrlen;
+    freeaddrinfo(res);
+
+    port = htons((unsigned short)(port <= 0 ? defport : port));
+
+    switch(any->s.a.sa_family)
+    {
+    case PF_INET:
+      any->s.in.sin_port = port;
+      break;
+#ifdef HAVE_INET6
+    case PF_INET6:
+      any->s.in6.sin6_port = port;
+      break;
+#endif
+    };
+
+    return any->s.a.sa_family;
+  }
+  while(0);
+
   return -1;
 }
 
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