Be case-insensitive in HTTP fields (and comparing hostname for redirects)

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/http.c b/http.c
index 52277ea..498eb23 100644 (file)
--- a/http.c
+++ b/http.c
@@ -141,15 +141,15 @@ static int process_http_response(struct openconnect_info *vpninfo, int *result,
                if (*colon == ' ')
                        colon++;
 
-               if (!strcmp(buf, "Connection") && !strcmp(colon, "Close"))
+               if (!strcasecmp(buf, "Connection") && !strcasecmp(colon, "Close"))
                        closeconn = 1;
 
-               if (!strcmp(buf, "Location")) {
+               if (!strcasecmp(buf, "Location")) {
                        vpninfo->redirect_url = strdup(colon);
                        if (!vpninfo->redirect_url)
                                return -ENOMEM;
                }
-               if (!strcmp(buf, "Content-Length")) {
+               if (!strcasecmp(buf, "Content-Length")) {
                        bodylen = atoi(colon);
                        if (bodylen < 0 || bodylen > buf_len) {
                                vpninfo->progress(vpninfo, PRG_ERR, "Response body too large for buffer (%d > %d)\n",
@@ -157,7 +157,7 @@ static int process_http_response(struct openconnect_info *vpninfo, int *result,
                                return -EINVAL;
                        }
                }
-               if (!strcmp(buf, "Set-Cookie")) {
+               if (!strcasecmp(buf, "Set-Cookie")) {
                        char *semicolon = strchr(colon, ';');
                        char *equals = strchr(colon, '=');
                        int ret;
@@ -175,8 +175,8 @@ static int process_http_response(struct openconnect_info *vpninfo, int *result,
                        if (ret)
                                return ret;
                }
-               if (!strcmp(buf, "Transfer-Encoding")) {
-                       if (!strcmp(colon, "chunked"))
+               if (!strcasecmp(buf, "Transfer-Encoding")) {
+                       if (!strcasecmp(colon, "chunked"))
                                bodylen = -1;
                        else {
                                vpninfo->progress(vpninfo, PRG_ERR, "Unknown Transfer-Encoding: %s\n", colon);
@@ -605,7 +605,7 @@ int openconnect_obtain_cookie(struct openconnect_info *vpninfo)
                                return ret;
                        }
 
-                       if (strcmp(vpninfo->hostname, host) || port != vpninfo->port) {
+                       if (strcasecmp(vpninfo->hostname, host) || port != vpninfo->port) {
                                free(vpninfo->hostname);
                                vpninfo->hostname = host;
                                vpninfo->port = port;