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authorJune McEnroe <june@causal.agency>2019-12-18 15:50:27 -0500
committerJune McEnroe <june@causal.agency>2019-12-18 15:50:27 -0500
commitdb4429471393297d46bb81492b2a480ca2c7ac4c (patch)
treee461b76b9a2aa82a4bc361301b981d06866c0c13
parentPost "cgit setup" (diff)
downloadsrc-db4429471393297d46bb81492b2a480ca2c7ac4c.tar.gz
src-db4429471393297d46bb81492b2a480ca2c7ac4c.zip
Bail from hi if input is binary
NULs in the input cause an infinite loop in htmlEscape, not to mention
regexes obviously not working, etc.
-rw-r--r--bin/hi.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/bin/hi.c b/bin/hi.c
index c8533e55..4021d1bc 100644
--- a/bin/hi.c
+++ b/bin/hi.c
@@ -739,6 +739,7 @@ int main(int argc, char *argv[]) {
 		if (!str) err(EX_OSERR, "realloc");
 	}
 	if (ferror(file)) err(EX_IOERR, "fread");
+	if (memchr(str, 0, len)) errx(EX_DATAERR, "input is binary");
 	str[len] = '\0';
 
 	enum Class *hi = calloc(len, sizeof(*hi));