Reduce the overburden of signed vs unsigned comparisons by sprinkling

'int' -> 'unsigned int' (and visa versa) where obvious.

Steal a couple of 'unsigned' -> u_int32_t from reyk@'s dhcrelay
tweaks.

No intentional functional change.

8 files changed, 38 insertions, 31 deletions

diff --git a/sbin/dhclient/clparse.c b/sbin/dhclient/clparse.c
index a1bfc389138..69afbe44a51 100644
--- a/sbin/dhclient/clparse.c
+++ b/sbin/dhclient/clparse.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: clparse.c,v 1.109 2017/04/04 13:01:20 krw Exp $	*/
+/*	$OpenBSD: clparse.c,v 1.110 2017/04/08 20:16:04 krw Exp $	*/
 
 /* Parser for dhclient config and lease files. */
 
@@ -64,7 +64,8 @@ void parse_client_statement(FILE *, struct interface_info *);
 int parse_X(FILE *, u_int8_t *, int);
 int parse_option_list(FILE *, u_int8_t *, size_t);
 void parse_interface_declaration(FILE *, struct interface_info *);
-void parse_client_lease_statement(FILE *, int, struct interface_info *);
+void parse_client_lease_statement(FILE *, unsigned int,
+    struct interface_info *);
 void parse_client_lease_declaration(FILE *, struct client_lease *,
     struct interface_info *);
 int parse_option_decl(FILE *, struct option_data *);
@@ -359,9 +360,10 @@ parse_X(FILE *cfile, u_int8_t *buf, int max)
 int
 parse_option_list(FILE *cfile, u_int8_t *list, size_t sz)
 {
-	int	 ix, i, j;
-	int	 token;
-	char	*val;
+	unsigned int	 ix, j;
+	int		 i;
+	int		 token;
+	char		*val;
 
 	memset(list, DHO_PAD, sz);
 	ix = 0;
@@ -465,7 +467,7 @@ parse_interface_declaration(FILE *cfile, struct interface_info *ifi)
  *		client-lease-declarations client-lease-declaration
  */
 void
-parse_client_lease_statement(FILE *cfile, int is_static,
+parse_client_lease_statement(FILE *cfile, unsigned int is_static,
     struct interface_info *ifi)
 {
 	struct client_state	*client = ifi->client;
@@ -553,7 +555,8 @@ parse_client_lease_declaration(FILE *cfile, struct client_lease *lease,
     struct interface_info *ifi)
 {
 	char *val;
-	int len, token;
+	unsigned int len;
+	int token;
 
 	token = next_token(&val, cfile);
 
@@ -632,7 +635,7 @@ parse_option_decl(FILE *cfile, struct option_data *options)
 	u_int8_t	 buf[4];
 	u_int8_t	 cidr[5];
 	u_int8_t	 hunkbuf[1024];
-	int		 hunkix = 0;
+	unsigned int	 hunkix = 0;
 	char		*fmt;
 	struct in_addr	 ip_addr;
 	u_int8_t	*dp;
diff --git a/sbin/dhclient/conflex.c b/sbin/dhclient/conflex.c
index 4200b7a70dc..e52f204b338 100644
--- a/sbin/dhclient/conflex.c
+++ b/sbin/dhclient/conflex.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: conflex.c,v 1.36 2017/04/03 18:23:36 krw Exp $	*/
+/*	$OpenBSD: conflex.c,v 1.37 2017/04/08 20:16:04 krw Exp $	*/
 
 /* Lexical scanner for dhclient config file. */
 
@@ -279,7 +279,8 @@ read_string(FILE *cfile)
 static int
 read_num_or_name(int c, FILE *cfile)
 {
-	int i, rv, xdigits;
+	unsigned int i, xdigits;
+	int rv;
 
 	xdigits = isxdigit(c) ? 1 : 0;
 
diff --git a/sbin/dhclient/dhclient.c b/sbin/dhclient/dhclient.c
index b00745de022..fa9c077221d 100644
--- a/sbin/dhclient/dhclient.c
+++ b/sbin/dhclient/dhclient.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dhclient.c,v 1.409 2017/04/08 17:00:10 krw Exp $	*/
+/*	$OpenBSD: dhclient.c,v 1.410 2017/04/08 20:16:04 krw Exp $	*/
 
 /*
  * Copyright 2004 Henning Brauer <henning@openbsd.org>
@@ -2276,7 +2276,8 @@ get_ifname(struct interface_info *ifi, char *arg)
 {
 	struct ifgroupreq ifgr;
 	struct ifg_req *ifg;
-	int s, len;
+	unsigned int len;
+	int s;
 
 	if (strcmp(arg, "egress") == 0) {
 		s = socket(AF_INET, SOCK_DGRAM, 0);
@@ -2867,7 +2868,7 @@ void
 add_classless_static_routes(struct option_data *opt, struct in_addr iface)
 {
 	struct in_addr	 dest, netmask, gateway;
-	int		 bits, bytes, i;
+	unsigned int	 i, bits, bytes;
 
 	i = 0;
 	while (i < opt->len) {
diff --git a/sbin/dhclient/dhcpd.h b/sbin/dhclient/dhcpd.h
index e18593fdeda..9f905209af5 100644
--- a/sbin/dhclient/dhcpd.h
+++ b/sbin/dhclient/dhcpd.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dhcpd.h,v 1.168 2017/04/08 18:54:52 krw Exp $	*/
+/*	$OpenBSD: dhcpd.h,v 1.169 2017/04/08 20:16:04 krw Exp $	*/
 
 /*
  * Copyright (c) 2004 Henning Brauer <henning@openbsd.org>
@@ -204,7 +204,7 @@ int peek_token(char **, FILE *);
 extern int warnings_occurred;
 void skip_to_semi(FILE *);
 int parse_semi(FILE *);
-char *parse_string(FILE *, int *);
+char *parse_string(FILE *, unsigned int *);
 int parse_ip_addr(FILE *, struct in_addr *);
 int parse_cidr(FILE *, unsigned char *);
 void parse_ethernet(FILE *, struct ether_addr *);
@@ -255,8 +255,8 @@ void routehandler(struct interface_info *);
 void assemble_eh_header(struct interface_info *, struct ether_header *);
 ssize_t decode_hw_header(unsigned char *, int, struct ether_addr *);
 ssize_t decode_udp_ip_header(unsigned char *, int, struct sockaddr_in *,
-    int);
-u_int32_t checksum(unsigned char *, unsigned, u_int32_t);
+    u_int32_t);
+u_int32_t checksum(unsigned char *, u_int32_t, u_int32_t);
 u_int32_t wrapsum(u_int32_t);
 
 /* clparse.c */
diff --git a/sbin/dhclient/kroute.c b/sbin/dhclient/kroute.c
index 1d53f814b51..3c90ee1c06b 100644
--- a/sbin/dhclient/kroute.c
+++ b/sbin/dhclient/kroute.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kroute.c,v 1.86 2017/04/05 18:22:31 krw Exp $	*/
+/*	$OpenBSD: kroute.c,v 1.87 2017/04/08 20:16:04 krw Exp $	*/
 
 /*
  * Copyright 2012 Kenneth R Westerback <krw@openbsd.org>
@@ -544,8 +544,7 @@ resolv_conf_priority(struct interface_info *ifi)
 	struct sockaddr_rtlabel *sa_rl;
 	pid_t pid;
 	ssize_t len;
-	u_int32_t seq;
-	int s, rslt, iovcnt = 0;
+	int s, seq, rslt, iovcnt = 0;
 
 	rslt = 0;
 
diff --git a/sbin/dhclient/options.c b/sbin/dhclient/options.c
index 51ea475ecff..77cd61bda44 100644
--- a/sbin/dhclient/options.c
+++ b/sbin/dhclient/options.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: options.c,v 1.86 2017/04/08 18:54:52 krw Exp $	*/
+/*	$OpenBSD: options.c,v 1.87 2017/04/08 20:16:04 krw Exp $	*/
 
 /* DHCP options parsing and reassembly. */
 
@@ -255,7 +255,8 @@ pretty_print_classless_routes(unsigned char *src, size_t srclen)
 	static char string[8196];
 	char bitsbuf[5];	/* to hold "/nn " */
 	struct in_addr net, gateway;
-	int bits, bytes, rslt;
+	unsigned int bytes;
+	int bits, rslt;
 
 	memset(string, 0, sizeof(string));
 
@@ -297,7 +298,8 @@ int
 expand_search_domain_name(unsigned char *src, size_t srclen, int *offset,
     unsigned char *domain_search)
 {
-	int domain_name_len, i, label_len, pointer, pointed_len;
+	unsigned int i;
+	int domain_name_len, label_len, pointer, pointed_len;
 	char *cursor;
 
 	cursor = domain_search + strlen(domain_search);
@@ -379,7 +381,8 @@ char *
 pretty_print_domain_search(unsigned char *src, size_t srclen)
 {
 	static char domain_search[DHCP_DOMAIN_SEARCH_LEN];
-	int offset, len, expanded_len, domains;
+	unsigned int offset;
+	int len, expanded_len, domains;
 	unsigned char *cursor;
 
 	memset(domain_search, 0, sizeof(domain_search));
diff --git a/sbin/dhclient/packet.c b/sbin/dhclient/packet.c
index 9479a7a82c6..9c8f1ee3f62 100644
--- a/sbin/dhclient/packet.c
+++ b/sbin/dhclient/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.33 2017/03/08 14:19:00 krw Exp $	*/
+/*	$OpenBSD: packet.c,v 1.34 2017/04/08 20:16:04 krw Exp $	*/
 
 /* Packet assembly code, originally contributed by Archie Cobbs. */
 
@@ -60,9 +60,9 @@
 #include "log.h"
 
 u_int32_t
-checksum(unsigned char *buf, unsigned nbytes, u_int32_t sum)
+checksum(unsigned char *buf, u_int32_t nbytes, u_int32_t sum)
 {
-	int i;
+	unsigned int i;
 
 	/* Checksum all the pairs of bytes first. */
 	for (i = 0; i < (nbytes & ~1U); i += 2) {
@@ -117,7 +117,7 @@ decode_hw_header(unsigned char *buf, int bufix, struct ether_addr *from)
 
 ssize_t
 decode_udp_ip_header(unsigned char *buf, int bufix, struct sockaddr_in *from,
-    int buflen)
+    u_int32_t buflen)
 {
 	struct ip *ip;
 	struct udphdr *udp;
diff --git a/sbin/dhclient/parse.c b/sbin/dhclient/parse.c
index 828ab6c8f0b..51328276d7f 100644
--- a/sbin/dhclient/parse.c
+++ b/sbin/dhclient/parse.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: parse.c,v 1.48 2017/04/03 19:59:39 krw Exp $	*/
+/*	$OpenBSD: parse.c,v 1.49 2017/04/08 20:16:04 krw Exp $	*/
 
 /* Common parser code for dhcpd and dhclient. */
 
@@ -129,7 +129,7 @@ parse_semi(FILE *cfile)
 }
 
 char *
-parse_string(FILE *cfile, int *len)
+parse_string(FILE *cfile, unsigned int *len)
 {
 	static char unvisbuf[1500];
 	char *val, *s;
@@ -424,7 +424,7 @@ void
 parse_warn(char *msg)
 {
 	static char spaces[81];
-	int i;
+	unsigned int i;
 
 	log_warnx("%s line %d: %s", tlname, lexline, msg);
 	log_warnx("%s", token_line);