[PATCH/RFC V2 09/26] library: Check for failed allocations in openconnect_vpninfo_new()

[Kevin Cernekee]

This is probably fatal anyway, but it is better to fail in a predictable
manner.

Signed-off-by: Kevin Cernekee <cernekee at gmail.com>
---
 library.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/library.c b/library.c
index c0ec763..726e4dd 100644
--- a/library.c
+++ b/library.c
@@ -50,6 +50,9 @@ struct openconnect_info *openconnect_vpninfo_new(char *useragent,
 {
 	struct openconnect_info *vpninfo = calloc(sizeof(*vpninfo), 1);
 
+	if (!vpninfo)
+		return NULL;
+
 	vpninfo->tun_fd = vpninfo->ssl_fd = vpninfo->dtls_fd = vpninfo->new_dtls_fd = -1;
 	vpninfo->cancel_fd = vpninfo->cancel_fd_write = -1;
 	vpninfo->cert_expire_warning = 60 * 86400;
@@ -68,6 +71,13 @@ struct openconnect_info *openconnect_vpninfo_new(char *useragent,
 	vpninfo->xmlpost = 1;
 	openconnect_set_reported_os(vpninfo, NULL);
 
+	if (!vpninfo->localname || !vpninfo->useragent) {
+		free(vpninfo->localname);
+		free(vpninfo->useragent);
+		free(vpninfo);
+		return NULL;
+	}
+
 #ifdef ENABLE_NLS
 	bindtextdomain("openconnect", LOCALEDIR);
 #endif
-- 
1.7.9.5