From 31990741fbf7dec987b8319cad65ff942dd4b957 Mon Sep 17 00:00:00 2001
From: victor <victor@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Tue, 1 Jun 2004 09:42:35 +0000
Subject: ip/mask

git-svn-id: http://opensvn.csie.org/pttbbs/branches/victor.screen@2041 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 include/proto.h     |  1 +
 include/pttstruct.h |  8 +++++---
 mbbsd/cache.c       | 33 ++++++++++++++++++---------------
 mbbsd/mbbsd.c       | 23 ++++++-----------------
 mbbsd/stuff.c       | 16 ++++++++++++++++
 mbbsd/talk.c        |  2 +-
 6 files changed, 47 insertions(+), 36 deletions(-)

diff --git a/include/proto.h b/include/proto.h
index a3e6c557..efed5fd4 100644
--- a/include/proto.h
+++ b/include/proto.h
@@ -483,6 +483,7 @@ void out_lines(const char *str, int line);
 #define pressanykey() vmsg_lines(b_lines, NULL)
 int vmsg_lines(int lines, const char *msg);
 int log_user(const char *fmt, ...);
+unsigned int ipstr2int(char *ip);
 time_t gettime(int line, time_t dt, char* head);
 void setcalfile(char *buf, char *userid);
 void stand_title(char *title);
diff --git a/include/pttstruct.h b/include/pttstruct.h
index 7a419c42..80eef33e 100644
--- a/include/pttstruct.h
+++ b/include/pttstruct.h
@@ -435,9 +435,11 @@ typedef struct {
     } GV2;
 
     /* fromcache */
-    char    domain[MAX_FROM][50];
-    char    replace[MAX_FROM][50];
-    int     top;
+    unsigned int    home_ip[MAX_FROM];
+    unsigned int    home_mask[MAX_FROM];
+    char	    home_desc[MAX_FROM][32];
+    int		    home_num;
+
     int     max_user;
     time_t  max_time;
     time_t  Fuptime;
diff --git a/mbbsd/cache.c b/mbbsd/cache.c
index 842cedad..dcf0c039 100644
--- a/mbbsd/cache.c
+++ b/mbbsd/cache.c
@@ -868,25 +868,28 @@ reload_fcache(void)
 	FILE           *fp;
 
 	SHM->Fbusystate = 1;
-	bzero(SHM->domain, sizeof(SHM->domain));
 	if ((fp = fopen("etc/domain_name_query", "r"))) {
-	    char            buf[256], *po;
+	    char            buf[256], *ip, *mask;
 
-	    SHM->top = 0;
+	    SHM->home_num = 0;
 	    while (fgets(buf, sizeof(buf), fp)) {
-		if (buf[0] && buf[0] != '#' && buf[0] != ' ' &&
-		    buf[0] != '\n') {
-		    sscanf(buf, "%s", SHM->domain[SHM->top]); // XXX check buffer size
-		    po = buf + strlen(SHM->domain[SHM->top]);
-		    while (*po == ' ' || *po == '\t')
-			po++;
-		    strncpy(SHM->replace[SHM->top], po, 49);
-		    SHM->replace[SHM->top]
-			[strlen(SHM->replace[SHM->top]) - 1] = 0;
-		    (SHM->top)++;
-		    if (SHM->top == MAX_FROM)
-			break;
+		if (!buf[0] || buf[0] == '#' || buf[0] == ' ' || buf[0] == '\n') {
+		    continue;
+		}
+		ip = strtok(buf, " \t");
+		if ((mask = strchr(ip, '/')) != NULL) {
+		    SHM->home_ip[SHM->home_num] = ipstr2int(ip);
+		    SHM->home_mask[SHM->home_num] = atoi(mask);
 		}
+		else
+		    SHM->home_ip[SHM->home_num] = ipstr2int(ip);
+		ip = strtok(NULL, " \t");
+		strncpy(SHM->home_desc[SHM->home_num], ip, sizeof(SHM->home_desc[SHM->home_num]));
+		SHM->home_desc[SHM->home_num]
+		    [strlen(SHM->home_desc[SHM->home_num]) - 1] = 0;
+		(SHM->home_num)++;
+		if (SHM->home_num == MAX_FROM)
+		    break;
 	    }
 	    fclose(fp);
 	}
diff --git a/mbbsd/mbbsd.c b/mbbsd/mbbsd.c
index 151bf6e9..f3468cbb 100644
--- a/mbbsd/mbbsd.c
+++ b/mbbsd/mbbsd.c
@@ -696,25 +696,14 @@ del_distinct(char *fname, char *line)
 static int
 where(char *from)
 {
-    register int    i = 0, count = 0, j;
-
-    for (j = 0; j < SHM->top; j++) {
-	char           *token = strtok(SHM->domain[j], "&");
-
-	i = 0;
-	count = 0;
-	while (token) {
-	    if (strstr(from, token))
-		count++;
-	    token = strtok(NULL, "&");
-	    i++;
+    register int i;
+
+    for (i = 0; i < SHM->home_num; i++) {
+	if ((SHM->home_ip[i] & SHM->home_mask[i]) == (ipstr2int(from) & SHM->home_mask[i])) {
+	    return i;
 	}
-	if (i == count)
-	    break;
     }
-    if (i != count)
-	return 0;
-    return j;
+    return 0;
 }
 #endif
 
diff --git a/mbbsd/stuff.c b/mbbsd/stuff.c
index 8e6bc461..9f00435f 100644
--- a/mbbsd/stuff.c
+++ b/mbbsd/stuff.c
@@ -317,6 +317,22 @@ belong(char *filelist, char *key)
     return rc;
 }
 
+unsigned int
+ipstr2int(char *ip)
+{
+    unsigned int i, val = 0;
+    char *p = strtok(ip, ".");
+    val = atoi(p);
+    for (i = 0; i < 3; i++) {
+	p = strtok(NULL, ".");
+	val *= 256;
+	if (p == NULL)
+	    continue;
+	val += atoi(p);
+    }
+    return val;
+}
+
 #ifndef _BBS_UTIL_C_ /* getdata_buf */
 time_t
 gettime(int line, time_t dt, char*head)
diff --git a/mbbsd/talk.c b/mbbsd/talk.c
index b710c66d..86981eac 100644
--- a/mbbsd/talk.c
+++ b/mbbsd/talk.c
@@ -1584,7 +1584,7 @@ descript(int show_mode, userinfo_t * uentp, time_t diff)
 	return (((uentp->pager != 2 && uentp->pager != 3 && diff) ||
 		 HAS_PERM(PERM_SYSOP)) ?
 #ifdef WHERE
-		uentp->from_alias ? SHM->replace[uentp->from_alias] :
+		uentp->from_alias ? SHM->home_desc[uentp->from_alias] :
 		uentp->from
 #else
 		uentp->from
-- 
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