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-rw-r--r--lib/transfer.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/transfer.c b/lib/transfer.c
index 54fbab182..9598a0ac5 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -805,10 +805,17 @@ CURLcode Curl_perform(CURL *curl)
char *pathsep;
char *newest;
+ /* we must make our own copy of the URL to play with, as it may
+ point to read-only data */
+ char *url_clone=strdup(data->url);
+
+ if(!url_clone)
+ return CURLE_OUT_OF_MEMORY;
+
/* protsep points to the start of the host name */
- protsep=strstr(data->url, "//");
+ protsep=strstr(url_clone, "//");
if(!protsep)
- protsep=data->url;
+ protsep=url_clone;
else {
port=FALSE; /* we got a full URL and thus we should not obey the
port number that might have been set by the user
@@ -838,15 +845,16 @@ CURLcode Curl_perform(CURL *curl)
*pathsep=0;
}
- newest=(char *)malloc( strlen(data->url) +
+ newest=(char *)malloc( strlen(url_clone) +
1 + /* possible slash */
strlen(conn->newurl) + 1/* zero byte */);
if(!newest)
return CURLE_OUT_OF_MEMORY;
- sprintf(newest, "%s%s%s", data->url, ('/' == conn->newurl[0])?"":"/",
+ sprintf(newest, "%s%s%s", url_clone, ('/' == conn->newurl[0])?"":"/",
conn->newurl);
free(conn->newurl);
+ free(url_clone);
conn->newurl = newest;
}
else {