sh: Constify various strings.

Most of this is adding const keywords, but setvar() in var.c had to be
changed somewhat more.

1 files changed, 6 insertions, 6 deletions

diff --git a/bin/sh/expand.c b/bin/sh/expand.c
index af79e8c..db86dac 100644
--- a/bin/sh/expand.c
+++ b/bin/sh/expand.c
@@ -107,7 +107,7 @@ STATIC void expmeta(char *, char *);
 STATIC void addfname(char *);
 STATIC struct strlist *expsort(struct strlist *);
 STATIC struct strlist *msort(struct strlist *, int);
-STATIC int pmatch(char *, char *, int);
+STATIC int pmatch(const char *, const char *, int);
 STATIC char *cvtnum(int, char *);
 STATIC int collate_range_cmp(int, int);
 
@@ -1338,7 +1338,7 @@ msort(struct strlist *list, int len)
  */
 
 int
-patmatch(char *pattern, char *string, int squoted)
+patmatch(const char *pattern, const char *string, int squoted)
 {
 #ifdef notdef
 	if (pattern[0] == '!' && pattern[1] == '!')
@@ -1350,9 +1350,9 @@ patmatch(char *pattern, char *string, int squoted)
 
 
 STATIC int
-pmatch(char *pattern, char *string, int squoted)
+pmatch(const char *pattern, const char *string, int squoted)
 {
-	char *p, *q;
+	const char *p, *q;
 	char c;
 
 	p = pattern;
@@ -1400,7 +1400,7 @@ pmatch(char *pattern, char *string, int squoted)
 			} while (*q++ != '\0');
 			return 0;
 		case '[': {
-			char *endp;
+			const char *endp;
 			int invert, found;
 			char chr;
 
@@ -1504,7 +1504,7 @@ rmescapes(char *str)
  */
 
 int
-casematch(union node *pattern, char *val)
+casematch(union node *pattern, const char *val)
 {
 	struct stackmark smark;
 	int result;