From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 30 Nov 2018 10:59:04 +0000 (+0100)
Subject: curl: fix memory leak reading --writeout from file
X-Git-Tag: curl-7_63_0~35
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=650281ed5ba335d16a932ccba53665551197880f;p=curl

curl: fix memory leak reading --writeout from file

If another string had been set first, the writout function for reading
the syntax from file would leak the previously allocated memory.

Reported-by: Brian Carpenter
Fixes #3322
Closes #3330
---

diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index cd21f774c..c0d3a84f2 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -2066,6 +2066,7 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
           fname = nextarg;
           file = fopen(nextarg, FOPEN_READTEXT);
         }
+        Curl_safefree(config->writeout);
         err = file2string(&config->writeout, file);
         if(file && (file != stdin))
           fclose(file);