Fix buf in suffix protocol

sustrik · sustrik · commit 302cdf636391 · 2018-11-30T06:05:52.000+01:00
Signed-off-by: Martin Sustrik &lt;sustrik@250bpm.com&gt;
diff --git a/suffix.c b/suffix.c
@@ -166,7 +166,7 @@ static ssize_t dill_suffix_mrecvl(struct dill_msock_vfs *mvfs,
             it = *it.iol_next;
         }
         /* Move one character to the user's iolist. */
-        if(it.iol_base) {
+        if(it.iol_base && it.iol_len > 0) {
             ((uint8_t*)it.iol_base)[0] = self->buf[0];
             it.iol_base = ((uint8_t*)it.iol_base) + 1;
             it.iol_len--;

Original file line number	Diff line number	Diff line change
`@@ -166,7 +166,7 @@ static ssize_t dill_suffix_mrecvl(struct dill_msock_vfs *mvfs,`
`166`	`166`	`it = *it.iol_next;`
`167`	`167`	`}`
`168`	`168`	`/* Move one character to the user's iolist. */`
`169`		`- if(it.iol_base) {`
	`169`	`+ if(it.iol_base && it.iol_len > 0) {`
`170`	`170`	`((uint8_t*)it.iol_base)[0] = self->buf[0];`
`171`	`171`	`it.iol_base = ((uint8_t*)it.iol_base) + 1;`
`172`	`172`	`it.iol_len--;`