imap-send: fix bug causing cfg->folder being set to NULL

6d1f198f34 (imap-send: fix leaking memory in `imap_server_conf`, 2024-06-07) resulted a change in static int git_imap_config which resulted in cfg->folder being incorrectly set to NULL in case imap.user, imap.pass, imap.tunnel and imap.authmethod were defined. Because of this, since Git 2.46.0, git-imap-send is not usable at all. The bug seems to have been unnoticed for a long time, likely due to better options like git-send-email. Signed-off-by: Aditya Garg <gargaditya08@live.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Aditya Garg committed Jun 20, 2025 at 12:10 UTC 44ba4b0bbb1a342659ca93d9ba6f475fbf9cff99
1 file changed +4 -4
imap-send.c
+4 -4
@@ -1316,16 +1316,16 @@ static int git_imap_config(const char *var, const char *val,
1316 FREE_AND_NULL(cfg->folder);
1317 return git_config_string(&cfg->folder, var, val);
1318 } else if (!strcmp("imap.user", var)) {
1319 - FREE_AND_NULL(cfg->folder);
1319 + FREE_AND_NULL(cfg->user);
1320 return git_config_string(&cfg->user, var, val);
1321 } else if (!strcmp("imap.pass", var)) {
1322 - FREE_AND_NULL(cfg->folder);
1322 + FREE_AND_NULL(cfg->pass);
1323 return git_config_string(&cfg->pass, var, val);
1324 } else if (!strcmp("imap.tunnel", var)) {
1325 - FREE_AND_NULL(cfg->folder);
1325 + FREE_AND_NULL(cfg->tunnel);
1326 return git_config_string(&cfg->tunnel, var, val);
1327 } else if (!strcmp("imap.authmethod", var)) {
1328 - FREE_AND_NULL(cfg->folder);
1328 + FREE_AND_NULL(cfg->auth_method);
1329 return git_config_string(&cfg->auth_method, var, val);
1330 } else if (!strcmp("imap.port", var)) {
1331 cfg->port = git_config_int(var, val, ctx->kvi);