BUILD: ssl: only pass unsigned chars to isspace()
A build failure on cygwin was reported on github actions here:
https://github.com/haproxy/haproxy/runs/466507874
It's caused by a signed char being passed to isspace(), and this one
being implemented as a macro instead of a function as the man page
suggests. It's the same issue that regularly pops up on Solaris. This
comes from commit 98263291cc3 which was merged in 1.8-dev1. A backport
is possible though not incredibly useful.
(cherry picked from commit ded15b75640d8f96929beefa3357cafbea25171e)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit d884f7e4ec6d085577ba0040ef01036d5c34fed4)
Signed-off-by: Willy Tarreau <w@1wt.eu>
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 8e5d1a2..d80b32e 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -3803,7 +3803,7 @@
/* end of string, end of loop */
*line = 0;
break;
- } else if (isspace(*line)) {
+ } else if (isspace((unsigned char)*line)) {
newarg = 1;
*line = 0;
} else if (*line == '[') {