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List:       cgit
Subject:    [PATCH 1/1] html: fix handling of null byte
From:       Christian Hesse <list () eworm ! de>
Date:       2020-11-11 21:19:59
Message-ID: 20201111211959.22841-1-list () eworm ! de
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From: Peter Prohaska <pitrp@web.de>

A return value of `len` or more means that the output was truncated.

Signed-off-by: Peter Prohaska <pitrp@web.de>
Signed-off-by: Christian Hesse <mail@eworm.de>
---
 html.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/html.c b/html.c
index 7f81965..0bac34b 100644
--- a/html.c
+++ b/html.c
@@ -59,7 +59,7 @@ char *fmt(const char *format, ...)
 	va_start(args, format);
 	len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
 	va_end(args);
-	if (len > sizeof(buf[bufidx])) {
+	if (len >= sizeof(buf[bufidx])) {
 		fprintf(stderr, "[html.c] string truncated: %s\n", format);
 		exit(1);
 	}
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