Add 'const' to a few places.

PR:		bin/65803
Submitted by:	Cyrille Lefevre

2 files changed, 13 insertions, 11 deletions

diff --git a/bin/ps/extern.h b/bin/ps/extern.h
index 3642fc9..dd72e20 100644
--- a/bin/ps/extern.h
+++ b/bin/ps/extern.h
@@ -50,7 +50,7 @@ int	 donlist(void);
 void	 elapsed(KINFO *, VARENT *);
 void	 emulname(KINFO *, VARENT *);
 VARENT	*find_varentry(VAR *);
-const	 char *fmt_argv(char **, char *, size_t);
+const char *fmt_argv(const char **, const char *, size_t);
 double	 getpcpu(const KINFO *);
 void	 kvar(KINFO *, VARENT *);
 void	 label(KINFO *, VARENT *);
diff --git a/bin/ps/fmt.c b/bin/ps/fmt.c
index d6e0109..f7c0914 100644
--- a/bin/ps/fmt.c
+++ b/bin/ps/fmt.c
@@ -51,16 +51,17 @@ __FBSDID("$FreeBSD$");
 
 #include "ps.h"
 
-static char *cmdpart(char *);
-static char *shquote(char **);
+static const char	*cmdpart(const char *);
+static const char	*shquote(const char **);
 
-static char *
-shquote(char **argv)
+static const char *
+shquote(const char **argv)
 {
 	long arg_max;
 	static size_t buf_size;
 	size_t len;
-	char **p, *dst, *src;
+	const char **p, *src;
+	char *dst;
 	static char *buf = NULL;
 
 	if (buf == NULL) {
@@ -96,19 +97,20 @@ shquote(char **argv)
 	return (buf);
 }
 
-static char *
-cmdpart(char *arg0)
+static const char *
+cmdpart(const char *arg0)
 {
-	char *cp;
+	const char *cp;
 
 	return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
 }
 
 const char *
-fmt_argv(char **argv, char *cmd, size_t maxlen)
+fmt_argv(const char **argv, const char *cmd, size_t maxlen)
 {
 	size_t len;
-	char *ap, *cp;
+	const char *ap;
+	char *cp;
 
 	if (argv == NULL || argv[0] == NULL) {
 		if (cmd == NULL)