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--- util.c.orig Fri Oct 13 18:49:03 2000
+++ util.c Fri Jun 11 12:35:32 2004
@@ -39,6 +39,7 @@
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
+#include <dirent.h>
#include "gnuc.h"
#ifdef HAVE_OS_PROTO_H
@@ -53,8 +54,11 @@
char *arpdir = ARPDIR;
char *arpfile = ARPFILE;
+char *etherfile = ETHERFILE;
char *ethercodes = ETHERCODES;
+struct ifdesc *if_desc = NULL;
+
/* Broadcast ethernet addresses */
u_char zero[6] = { 0, 0, 0, 0, 0, 0 };
u_char allones[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
@@ -105,7 +109,7 @@
dump(void)
{
register int fd;
- char oldarpfile[256], newarpfile[256];
+ char oldarpfile[256], newarpfile[256], *oldetherfile, *newetherfile;
(void)sprintf(oldarpfile, "%s-", arpfile);
(void)sprintf(newarpfile, "%s.new", arpfile);
@@ -130,6 +134,32 @@
syslog(LOG_ERR, "rename %s -> %s: %m", newarpfile, arpfile);
return(0);
}
+
+ /* ether info */
+ (void)asprintf(&oldetherfile, "%s-", etherfile);
+ (void)asprintf(&newetherfile, "%s.new", etherfile);
+
+ if ((fd = creat(newetherfile, 0644)) < 0) {
+ syslog(LOG_ERR, "creat(%s): %m", newetherfile);
+ return(0);
+ }
+ if ((dumpf = fdopen(fd, "w")) == NULL) {
+ syslog(LOG_ERR, "fdopen(%s): %m", newetherfile);
+ return(0);
+ }
+
+ fwrite(einfo_table, sizeof(struct einfo), et_cnt, dumpf);
+
+ (void)fclose(dumpf);
+ if (rename(etherfile, oldetherfile) < 0) {
+ syslog(LOG_ERR, "rename %s -> %s: %m", etherfile, oldetherfile);
+ return(0);
+ }
+ if (rename(newetherfile, etherfile) < 0) {
+ syslog(LOG_ERR, "rename %s -> %s: %m", newetherfile, etherfile);
+ return(0);
+ }
+
return(1);
}
@@ -138,7 +168,64 @@
readdata(void)
{
register FILE *f;
+ char line[1024];
+ char buf[MAXNAMLEN];
+ char path[MAXNAMLEN + 1];
+ int len, i;
+ DIR *dirp;
+ struct dirent *dp;
+ struct ifdesc *idp;
+
+ /* interface descriptions */
+ if ((dirp = opendir(arpdir)) == NULL)
+ {
+ syslog(LOG_ERR, "opendir(%s)", arpdir);
+ return(0);
+ }
+
+ idp = if_desc = (struct ifdesc *) malloc(sizeof(struct ifdesc));
+ idp->name = idp->desc = NULL;
+ idp->next = NULL;
+
+ while ((dp = readdir(dirp)) != NULL)
+ {
+ if (dp->d_type == DT_LNK)
+ {
+ for (i=0; i < dp->d_namlen; i++)
+ path[i] = dp->d_name[i];
+
+ path[dp->d_namlen] = '\0';
+
+ if ((len = readlink(path, buf, MAXNAMLEN)) == -1)
+ {
+ syslog(LOG_ERR, "readlink(path) failed");
+ return(0);
+ }
+
+ buf[len] = '\0';
+
+ idp->next = (struct ifdesc *) malloc(sizeof(struct ifdesc));
+ idp = idp->next;
+ idp->next = NULL;
+ asprintf(&idp->name, "%s", path);
+ asprintf(&idp->desc, "%s", buf);
+ }
+ }
+
+ if (if_desc->next == NULL)
+ {
+ free(if_desc);
+ idp = if_desc = NULL;
+ }
+ else
+ {
+ idp = if_desc;
+ if_desc = if_desc->next;
+ free(idp);
+ idp = NULL;
+ }
+ /* arp.dat */
if ((f = fopen(arpfile, "r")) == NULL) {
syslog(LOG_ERR, "fopen(%s): %m", arpfile);
return(0);
@@ -147,6 +234,15 @@
(void)fclose(f);
return(0);
}
+ (void)fclose(f);
+
+ /* ether.dat */
+ if ((f = fopen(etherfile, "r")) == NULL) {
+ syslog(LOG_ERR, "fopen(%s): %m", etherfile);
+ return(0);
+ }
+
+ et_cnt = fread(einfo_table, sizeof(struct einfo), HASHSIZE, f);
(void)fclose(f);
/* It's not fatal if we can't open the ethercodes file */
|
