From: Jean-Marc Pigeon (Delson) <jmp@safe.ca>
Date: Sat, 21 Jun 2025 18:31:25 +0000 (-0400)
Subject: Difference between binding AND interface list now done
X-Git-Tag: tag-0.9~54
X-Git-Url: https://jmp-git.ovh.safe.ca/?a=commitdiff_plain;h=c0761c775a70a27893778a8d8a0cffa10bed19ac;p=jmp%2Fmailleur

Difference between binding AND interface list now done
---

diff --git a/lib/unitls.c b/lib/unitls.c
index f2b75e9..3cc60ea 100644
--- a/lib/unitls.c
+++ b/lib/unitls.c
@@ -11,6 +11,7 @@
 #include        <openssl/x509.h>
 #include        <openssl/x509v3.h>
 #include        <sys/socket.h>
+#include        <ifaddrs.h>
 #include        <netdb.h>
 #include        <poll.h>
 #include        <signal.h>
@@ -394,7 +395,8 @@ return proto;
 */
 /********************************************************/
 /*							*/
-/*	Procedure to parse an the SMTPPORTS env variable*/
+/*	Procedure to the system interrace and build     */
+/*      a list of local IPV4 interface available        */
 /*      and build the LISTYP structure.                 */
 /*							*/
 /********************************************************/
@@ -402,85 +404,76 @@ static void buildafns()
 
 {
 #define OPEP    "unitls.c,buildafns,"
-#define DIP     "0.0.0.0"       //listening on all PORT
-#define DPORT   "25"            //Default SMTP port
 
-char *data;
+char *localip;
+struct ifaddrs *ifaddr;
 int phase;
 _Bool proceed;
 
-data=(char *)0;
+localip=strdup("");
+afns=(AFNTYP **)0;
+ifaddr=(struct ifaddrs *)0;
 phase=0;
 proceed=true;
 while (proceed==true) {
   switch (phase) {
-    case 0      :       //Getting the SMTPPORTS variable
-      if ((data=getenv("SMTPPORTS"))==(char *)0) 
-        data="smtp:0.0.0.0:25:2";       //default configuration
-      data=strdup(data);
-      break;
-    case 1      :       //scanning sequence
-      char *ips;
-      char *seq;
-
-      ips=strdup("");
-      seq=data;
-      while (seq!=(char *)0) {
-        char *ptr;
-
-        if ((ptr=strchr(seq,','))!=(char *)0) {
-          *ptr='\000';
-          ptr++;
-          }
-        for (int j=0;(j<3)&&(seq!=(char *)0);j++) {
-          char *sofar;
-
-          if ((sofar=strchr(seq,':'))!=(char *)0) {
-            *sofar='\000';
-            sofar++;
-            }
-          switch (j) {
-            case 0      :       //extracting protocol
-              //forget about protocol
-              break;
-            case 1      :       
-              int taille;
-              char *ip;
-              char *newips;
-
-              ip=seq;
-              if (strlen(ip)==0) 
-                ip=DIP;
-              taille=strlen(ips)+strlen(ip)+2;
-              newips=(char *)calloc(taille,sizeof(char));
-              (void) strcpy(newips,ips);
-              ips=rou_freestr(ips);
-              ips=newips;
-              if (strlen(ip)>0)
-                (void) strcat(ips,",");
-              (void) strcat(ips,ip);
-              break;
-            case 2      :       
-              //forget about port and itreations
-              break;
-            }
-          seq=sofar;
+    case 0      :       //Get the interface list
+      if (getifaddrs(&ifaddr)<0) {
+        (void) rou_alert(0,"%s Unable to get local IP (error=<%s> system?)",
+                           OPEP,strerror(errno));
+        phase=999;      //no need to go further
+        }
+      break;
+    case 1      :       //Scan interface lis
+      for (struct ifaddrs *ifa=ifaddr;ifa!=(struct ifaddrs *)0;ifa=ifa->ifa_next) {
+        int family;
+        int taille;
+        int er;
+        char *newloc;
+        char host[NI_MAXHOST];
+
+      if (ifa->ifa_addr==(struct sockaddr *)0)
+          continue;
+      family=ifa->ifa_addr->sa_family;
+      switch (family) {
+        case AF_INET  :
+          taille=sizeof(struct sockaddr_in);
+          break;
+        case AF_INET6 :
+          taille=sizeof(struct sockaddr_in6);
+          continue;   //No scanning for IPV6 Number (Jun 2025)
+          break;
+        default       :
+          continue;
+          break;
+        }
+      er=getnameinfo(ifa->ifa_addr,taille,host,NI_MAXHOST,NULL,0,NI_NUMERICHOST);
+      if (er!=0) {
+        (void) rou_alert(0,"%s etnameinfo() failed: (error=<%s> system?)",
+                           OPEP,strerror(errno));
+        continue;
+        }
+      newloc=(char *)calloc(strlen(localip)+strlen(host)+3,sizeof(char));
+      if (strlen(localip)>0) {
+          (void) strcpy(newloc,localip);
+          (void) strcat(newloc,",");
           }
-        seq=ptr;
+        (void) rou_alert(0,"JMPDBG adding local IP <%s>",host);
+        (void) strcat(newloc,host);
+        (void) free(localip);
+        localip=newloc;
         }
-      afns=afn_getipnum(ips);
-      ips=rou_freestr(ips);
+      break;
+    case 2      :       //converting interface IP list to AFNTYP list
+      afns=afn_getipnum(localip);
       break;
     default     :       //SAFE Guard
-      (void) free(data);
       proceed=false;
       break;
     }
   phase++;
   }
-
-#undef  DPORT
-#undef  DIP
+localip=rou_freestr(localip);
 #undef  OPEP
 }
 /*