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-rw-r--r--imap-send.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/imap-send.c b/imap-send.c
index 8c785f3..12cc4ea 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -684,7 +684,7 @@ static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
struct imap *imap = ctx->imap;
char *arg, *p;
- if (*s != '[')
+ if (!s || *s != '[')
return RESP_OK; /* no response code */
s++;
if (!(p = strchr(s, ']'))) {
@@ -693,6 +693,10 @@ static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
}
*p++ = 0;
arg = next_arg(&s);
+ if (!arg) {
+ fprintf(stderr, "IMAP error: empty response code\n");
+ return RESP_BAD;
+ }
if (!strcmp("UIDVALIDITY", arg)) {
if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg))) {
fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
@@ -725,7 +729,8 @@ static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
{
struct imap *imap = ctx->imap;
struct imap_cmd *cmdp, **pcmdp;
- char *cmd, *arg, *arg1;
+ char *cmd;
+ const char *arg, *arg1;
int n, resp, resp2, tag;
for (;;) {
@@ -733,6 +738,10 @@ static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
return RESP_BAD;
arg = next_arg(&cmd);
+ if (!arg) {
+ fprintf(stderr, "IMAP error: empty response\n");
+ return RESP_BAD;
+ }
if (*arg == '*') {
arg = next_arg(&cmd);
if (!arg) {
@@ -807,6 +816,8 @@ static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
if (cmdp->cb.cont || cmdp->cb.data)
imap->literal_pending = 0;
arg = next_arg(&cmd);
+ if (!arg)
+ arg = "";
if (!strcmp("OK", arg))
resp = DRV_OK;
else {