aboutsummaryrefslogtreecommitdiff
path: root/networking
diff options
context:
space:
mode:
authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-01-22 14:06:03 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-01-22 14:06:03 +0000
commit6cd2d2bcba37a13d0d73326dd7bca64bbccce4f8 (patch)
tree42ddb59f35d305a5587a02197ad7630fc8ff289b /networking
parent35d4da0fb5884236fa7a131a13416268239c9e69 (diff)
downloadbusybox-6cd2d2bcba37a13d0d73326dd7bca64bbccce4f8.tar.gz
busybox-6cd2d2bcba37a13d0d73326dd7bca64bbccce4f8.tar.bz2
dnsd: getfileentry was leaking memory
mount: improve readability
Diffstat (limited to 'networking')
-rw-r--r--networking/dnsd.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/networking/dnsd.c b/networking/dnsd.c
index 71f50423d..6a866f1d7 100644
--- a/networking/dnsd.c
+++ b/networking/dnsd.c
@@ -110,7 +110,7 @@ static void undot(uint8_t * rip)
* Read one line of hostname/IP from file
* Returns 0 for each valid entry read, -1 at EOF
* Assumes all host names are lower case only
- * Hostnames with more than one label is not handled correctly.
+ * Hostnames with more than one label are not handled correctly.
* Presently the dot is copied into name without
* converting to a length/string substring for that label.
*/
@@ -118,32 +118,37 @@ static void undot(uint8_t * rip)
static int getfileentry(FILE * fp, struct dns_entry *s)
{
unsigned int a,b,c,d;
- char *r, *name;
+ char *line, *r, *name;
restart:
- r = xmalloc_fgets(fp);
+ line = r = xmalloc_fgets(fp);
if (!r)
return -1;
while (*r == ' ' || *r == '\t') {
r++;
- if (!*r || *r == '#' || *r == '\n')
+ if (!*r || *r == '#' || *r == '\n') {
+ free(line);
goto restart; /* skipping empty/blank and commented lines */
+ }
}
name = r;
while (*r != ' ' && *r != '\t')
r++;
- *r++ = 0;
- if (sscanf(r, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
+ *r++ = '\0';
+ if (sscanf(r, "%u.%u.%u.%u", &a, &b, &c, &d) != 4) {
+ free(line);
goto restart; /* skipping wrong lines */
+ }
sprintf(s->ip, "%u.%u.%u.%u", a, b, c, d);
sprintf(s->rip, ".%u.%u.%u.%u", d, c, b, a);
undot((uint8_t*)s->rip);
- convname(s->name,(uint8_t*)name);
+ convname(s->name, (uint8_t*)name);
if (OPT_verbose)
fprintf(stderr, "\tname:%s, ip:%s\n", &(s->name[1]),s->ip);
+ free(line);
return 0;
}
@@ -154,14 +159,13 @@ static void dnsentryinit(void)
{
FILE *fp;
struct dns_entry *m, *prev;
- prev = dnsentry = NULL;
+ prev = dnsentry = NULL;
fp = xfopen(fileconf, "r");
while (1) {
- m = xmalloc(sizeof(struct dns_entry));
-
- m->next = NULL;
+ m = xzalloc(sizeof(*m));
+ /*m->next = NULL;*/
if (getfileentry(fp, m))
break;