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vt: fix off by one memory corruption

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account for the final 0 byte in host_buf.
This commit is contained in:
cinap_lenrek 2013-08-11 08:34:34 +02:00
parent 09d465a976
commit bf10f672ec
1 changed files with 3 additions and 3 deletions
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6
sys/src/cmd/vt/main.c
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@ -183,7 +183,7 @@ initialize(int argc, char **argv)
break;
}ARGEND;
host_buf = malloc(host_bsize);
host_buf = mallocz(host_bsize, 1);
hostp = host_buf;
hostlength = 0;
@ -808,8 +808,8 @@ void
set_host(Event *e)
{
hostlength = e->n;
if(hostlength > host_bsize) {
host_bsize *= 2;
if(hostlength >= host_bsize) {
host_bsize = BSIZE*((hostlength + BSIZE)/BSIZE);
host_buf = realloc(host_buf,host_bsize);
}
hostp = host_buf;