X-Git-Url: https://git.decadent.org.uk/gitweb/?p=odhcp6c.git;a=blobdiff_plain;f=src%2Fscript.c;h=66a15a770ac1d0088b88cb7b0adad4842e539f9f;hp=ff81278bf59b6f3e1dd1082634f5086aed1da505;hb=28cb28d09593f9195dc29d208da0658ef8c582b6;hpb=4be3f666fde73be0d7046fac1ab8075aa5b1e8db

diff --git a/src/script.c b/src/script.c
index ff81278..66a15a7 100644
--- a/src/script.c
+++ b/src/script.c
@@ -58,7 +58,8 @@ ssize_t script_unhexlify(uint8_t *dst, size_t len, const char *src)
 				|| y < 0 || (y = hexvals[y]) < 0)
 			return -1;
 		dst[c] = x << 4 | y;
-		while (*src < 0 || (*src && hexvals[(uint8_t)*src] < 0))
+		while (((int8_t)*src) < 0 ||
+				(*src && hexvals[(uint8_t)*src] < 0))
 			src++;
 	}