hurl

commit e5399e327f21a6033de0decb3c8588a17a63eea8
parent e0b2498d20b2082339ac02a098b40a11bdbe3ab7
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Fri, 22 May 2020 21:32:48 +0200

add alarm timer in case connection hangs without triggering a connect timeout

Noticed on a (broken?) snapshot version on OpenBSD -current with libtls.

Should make the time-out behaviour more reliable regardless.

Diffstat:
M
hurl.c
 | 
12
++++++++++++

1 file changed, 12 insertions(+), 0 deletions(-)
diff --git a/hurl.c b/hurl.c
@@ -6,6 +6,7 @@
 #include <errno.h>
 #include <netdb.h>
 #include <locale.h>
+#include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdint.h>
@@ -54,6 +55,13 @@ static char *url;
 /* TLS config */
 static struct tls_config *tls_config;
 
+void
+sighandler(int signo)
+{
+	if (signo == SIGALRM)
+		_exit(2);
+}
+
 int
 parseuri(const char *s, struct uri *u)
 {
@@ -525,6 +533,10 @@ main(int argc, char **argv)
 	if (parseuri(url, &u) == -1)
 		errx(1, "invalid url: %s", url);
 
+	signal(SIGALRM, sighandler);
+	if (alarm(config_timeout) == -1)
+		err(1, "alarm");
+
 	if (!strcmp(u.proto, "https")) {
 		if (tls_init())
 			errx(1, "tls_init failed");