bugfix: f->name is null

hqwrong · hqwrong · commit 48fba6dbfbb4 · 2018-06-29T19:05:56.000+08:00
diff --git a/minitox.c b/minitox.c
@@ -593,7 +593,8 @@ void group_invite_cb(Tox *tox, uint32_t friend_num, TOX_CONFERENCE_TYPE type, co
         memcpy(req->userdata.group.cookie, cookie, length),
         req->userdata.group.length = length;
         req->userdata.group.friend_num = friend_num;
-        req->msg = malloc(strlen("From ") + strlen(f->name) + 1);
+        int sz = snprintf(NULL, 0, "%s%s", "From ", f->name);
+        req->msg = malloc(sz + 1);
         sprintf(req->msg, "%s%s", "From ", f->name);
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -593,7 +593,8 @@ void group_invite_cb(Tox *tox, uint32_t friend_num, TOX_CONFERENCE_TYPE type, co`
`593`	`593`	`memcpy(req->userdata.group.cookie, cookie, length),`
`594`	`594`	`req->userdata.group.length = length;`
`595`	`595`	`req->userdata.group.friend_num = friend_num;`
`596`		`- req->msg = malloc(strlen("From ") + strlen(f->name) + 1);`
	`596`	`+ int sz = snprintf(NULL, 0, "%s%s", "From ", f->name);`
	`597`	`+ req->msg = malloc(sz + 1);`
`597`	`598`	`sprintf(req->msg, "%s%s", "From ", f->name);`
`598`	`599`	`}`
`599`	`600`	`}`