Add missing casts to unsigned char when using ctype(3).

From Hiltjo Posthuma

3 files changed, 6 insertions, 6 deletions

diff --git a/mail.lmtp.c b/mail.lmtp.c
index f427e73d..c7dc46d5 100644
--- a/mail.lmtp.c
+++ b/mail.lmtp.c
@@ -255,9 +255,9 @@ lmtp_engine(int fd_read, struct session *session)
 		line[strcspn(line, "\r")] = '\0';
 
 		if (linelen < 4 ||
-		    !isdigit(line[0]) ||
-		    !isdigit(line[1]) ||
-		    !isdigit(line[2]) ||
+		    !isdigit((unsigned char)line[0]) ||
+		    !isdigit((unsigned char)line[1]) ||
+		    !isdigit((unsigned char)line[2]) ||
 		    (line[3] != ' ' && line[3] != '-'))
 			errx(EX_TEMPFAIL, "LMTP server sent an invalid line");
 
diff --git a/smtp_session.c b/smtp_session.c
index 87ae18a6..d6c45b92 100644
--- a/smtp_session.c
+++ b/smtp_session.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: smtp_session.c,v 1.424 2020/02/03 15:53:52 gilles Exp $	*/
+/*	$OpenBSD: smtp_session.c,v 1.425 2020/03/15 16:34:57 millert Exp $	*/
 
 /*
  * Copyright (c) 2008 Gilles Chehade <gilles@poolp.org>
@@ -452,7 +452,7 @@ header_address_rewrite_buffer(char *buffer, const char *address, size_t len)
 			pos_component_beg = 0;
 		else {
 			for (pos_component_beg = pos_component_end; pos_component_beg >= 0; --pos_component_beg)
-				if (buffer[pos_component_beg] == ')' || isspace(buffer[pos_component_beg]))
+				if (buffer[pos_component_beg] == ')' || isspace((unsigned char)buffer[pos_component_beg]))
 					break;
 			pos_component_beg += 1;
 			pos_component_end += 1;
diff --git a/spfwalk.c b/spfwalk.c
index 97104eb9..130c7221 100644
--- a/spfwalk.c
+++ b/spfwalk.c
@@ -95,7 +95,7 @@ spfwalk(int argc, struct parameter *argv)
 	tgt.dispatch = dispatch_txt;
 
 	while ((linelen = getline(&line, &linesize, stdin)) != -1) {
-		while (linelen-- > 0 && isspace(line[linelen]))
+		while (linelen-- > 0 && isspace((unsigned char)line[linelen]))
 			line[linelen] = '\0';
 
 		if (linelen > 0)