From 72c27633c5ab6a7e5a2441b17d212ed745323f8a Mon Sep 17 00:00:00 2001
From: =?utf8?q?Fr=C3=A9d=C3=A9ric=20Marchal?=
 <fmarchal@users.sourceforge.net>
Date: Mon, 8 Mar 2010 11:34:56 +0000
Subject: [PATCH] Can resolve IPv6 addresses

---
 CMakeLists.txt      |  3 ++-
 configure.in        |  1 +
 include/config.h.in |  1 +
 include/info.h      |  2 +-
 ip2name.c           | 27 ++++++++++++++++++++++++++-
 report.c            |  6 +++++-
 6 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bcd378e..08b633d 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ PROJECT(sarg C)
 SET(sarg_VERSION 2)
 SET(sarg_REVISION "3rc1")
 SET(sarg_BUILD "")
-SET(sarg_BUILDDATE "Mar-02-2010")
+SET(sarg_BUILDDATE "Mar-08-2010")
 
 INCLUDE(AddFileDependencies)
 INCLUDE(CheckIncludeFile)
@@ -117,6 +117,7 @@ CHECK_FUNCTION_EXISTS(bzero HAVE_BZERO)
 CHECK_FUNCTION_EXISTS(backtrace HAVE_BACKTRACE)
 CHECK_FUNCTION_EXISTS(symlink HAVE_SYMLINK)
 CHECK_FUNCTION_EXISTS(lstat HAVE_LSTAT)
+CHECK_FUNCTION_EXISTS(getnameinfo HAVE_GETNAMEINFO)
 
 # Find gd
 CHECK_INCLUDE_FILE(gd.h HAVE_GD_H)
diff --git a/configure.in b/configure.in
index c7f032d..a8b86ad 100644
--- a/configure.in
+++ b/configure.in
@@ -124,6 +124,7 @@ AC_CHECK_FUNCS(bzero)
 AC_CHECK_FUNCS(backtrace)
 AC_CHECK_FUNCS(symlink)
 AC_CHECK_FUNCS(lstat)
+AC_CHECK_FUNCS(getnameinfo)
 
 dnl check for the rlim_t size
 AC_CHECK_SIZEOF(rlim_t,1,[#if HAVE_SYS_RESOURCE_H
diff --git a/include/config.h.in b/include/config.h.in
index 5fde710..1c9f739 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -54,6 +54,7 @@
 #cmakedefine HAVE_BACKTRACE
 #cmakedefine HAVE_SYMLINK
 #cmakedefine HAVE_LSTAT
+#cmakedefine HAVE_GETNAMEINFO
 
 #define RLIM_STRING "@RLIM_STRING@"
 #define ICONV_CONST @ICONV_CONST@
diff --git a/include/info.h b/include/info.h
index 914a5ab..f52b116 100755
--- a/include/info.h
+++ b/include/info.h
@@ -1,3 +1,3 @@
-#define VERSION PACKAGE_VERSION" Mar-02-2010"
+#define VERSION PACKAGE_VERSION" Mar-08-2010"
 #define PGM PACKAGE_NAME
 #define URL "http://sarg.sourceforge.net"
diff --git a/ip2name.c b/ip2name.c
index 6cd0372..d7938aa 100644
--- a/ip2name.c
+++ b/ip2name.c
@@ -29,6 +29,31 @@
 
 void ip2name(char *ip,int ip_len)
 {
+#ifdef HAVE_GETNAMEINFO
+   struct sockaddr_storage sa;
+   char host[NI_MAXHOST];
+   int n1,n2,n3,n4,next=0;
+   int error;
+
+   memset(&sa,0,sizeof(sa));
+   if (sscanf(ip,"%d.%d.%d.%d%n",&n1,&n2,&n3,&n4,&next)==4 && ip[next]=='\0') {
+      struct sockaddr_in *s4=(struct sockaddr_in *)&sa;
+      if (inet_pton(AF_INET,ip,&s4->sin_addr)!=1) return;
+      sa.ss_family=AF_INET;
+   } else {
+      struct sockaddr_in6 *s6=(struct sockaddr_in6 *)&sa;
+      if (inet_pton(AF_INET6,ip,&s6->sin6_addr)!=1) return;
+      sa.ss_family=AF_INET6;
+   }
+   error=getnameinfo((struct sockaddr *)&sa,sizeof(sa),host,sizeof(host),NULL,0,0);
+   if (error==0)
+   {
+      strncpy(ip,host,ip_len-1);
+      ip[ip_len-1]='\0';
+   } else {
+      debuga(_("IP to name resolution (getnameinfo) on IP address %s failed with error %d - %s\n"),ip,error,gai_strerror(error));
+   }
+#else
    u_long addr;
    struct hostent *hp;
    char **p;
@@ -47,7 +72,7 @@ void ip2name(char *ip,int ip_len)
       strncpy(ip,hp->h_name,ip_len-1);
       ip[ip_len-1]=0;
    }
-
+#endif
    return;
 }
 
diff --git a/report.c b/report.c
index d55ce3a..443597c 100644
--- a/report.c
+++ b/report.c
@@ -136,7 +136,11 @@ void gerarel(void)
          continue;
       }
       strcpy(u2,uinfo->id);
-      if(Ip2Name && uinfo->id_is_ip) ip2name(u2,sizeof(u2));
+      if(Ip2Name && uinfo->id_is_ip) {
+         strcpy(ipantes,u2);
+         ip2name(u2,sizeof(u2));
+         strcpy(nameantes,u2);
+      }
       user_find(uinfo->label,MAX_USER_LEN, u2);
 
       strcpy(wdirname,dirname);
-- 
2.47.2