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Fix buffer overflow in zstat #141

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Fix buffer overflow in zstat #141

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10 changes: 5 additions & 5 deletions clients/zstat/zstat.c
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Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,7 @@ hm_stat(char *host,
struct in_addr inaddr;
Code_t code;

char *line[20],*mp;
char *line[HM_SIZE],*mp;
unsigned int i,nf;
struct hostent *hp;
time_t runtime;
Expand All @@ -163,7 +163,7 @@ hm_stat(char *host,
}

mp = notice.z_message;
for (nf=0;mp<notice.z_message+notice.z_message_len;nf++) {
for (nf=0;mp<notice.z_message+notice.z_message_len && nf<HM_SIZE;nf++) {
line[nf] = mp;
mp += strlen(mp)+1;
}
Expand Down Expand Up @@ -195,7 +195,7 @@ hm_stat(char *host,
int
srv_stat(char *host)
{
char *line[20],*mp;
char *line[SRV_SIZE],*mp;
int sock,i,nf,ret;
struct hostent *hp;
struct sockaddr_in sin;
Expand Down Expand Up @@ -273,14 +273,14 @@ srv_stat(char *host)
}

mp = notice.z_message;
for (nf=0;mp<notice.z_message+notice.z_message_len;nf++) {
for (nf=0;mp<notice.z_message+notice.z_message_len && nf<SRV_SIZE;nf++) {
line[nf] = mp;
mp += strlen(mp)+1;
}

printf("Server protocol version = %s\n",notice.z_version);

for (i=0; i < nf; i++) {
for (i=0; i < nf && i < SRV_SIZE; i++) {
if (i < 2)
printf("%s %s\n",srv_head[i],line[i]);
else if (i == 2) { /* uptime field */
Expand Down