config: document value 2 for protocol.version

diff --git a/imap-send.c b/imap-send.c
index e0523d3427205065037a493750da03fbefd1c8f4..36c7c1b4f6195b2d2f00013611a5d0aa96ecf408 100644 (file)
--- a/imap-send.c
+++ b/imap-send.c
@@ -683,7 +683,7 @@ 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, ']'))) {
@@ -692,6 +692,10 @@ 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");
@@ -724,7 +728,8 @@ 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 (;;) {
@@ -732,6 +737,10 @@ 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) {
@@ -806,6 +815,8 @@ 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 {
@@ -1401,6 +1412,7 @@ static CURL *setup_curl(struct imap_server_conf *srvc, struct credential *cred)
 {
        CURL *curl;
        struct strbuf path = STRBUF_INIT;
+       char *uri_encoded_folder;
 
        if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
                die("curl_global_init failed");
@@ -1418,7 +1430,12 @@ static CURL *setup_curl(struct imap_server_conf *srvc, struct credential *cred)
        strbuf_addstr(&path, server.host);
        if (!path.len || path.buf[path.len - 1] != '/')
                strbuf_addch(&path, '/');
-       strbuf_addstr(&path, server.folder);
+
+       uri_encoded_folder = curl_easy_escape(curl, server.folder, 0);
+       if (!uri_encoded_folder)
+               die("failed to encode server folder");
+       strbuf_addstr(&path, uri_encoded_folder);
+       curl_free(uri_encoded_folder);
 
        curl_easy_setopt(curl, CURLOPT_URL, path.buf);
        strbuf_release(&path);