[Toybox] [PATCH] Replace index() with strchr().

[Georgi Chorbadzhiyski]

POSIX.1-2008 removes the specifications of index() and rindex(),
recommending strchr(3) and strchr(3) instead. This patch also
helps toybox to be compiled with musl libc.
---
 kconfig/lxdialog/util.c |    4 ++--
 lib/lib.c               |    2 +-
 toys/sort.c             |    2 +-
 toys/which.c            |    2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/kconfig/lxdialog/util.c b/kconfig/lxdialog/util.c
index ebc781b..14ebc72 100644
--- a/kconfig/lxdialog/util.c
+++ b/kconfig/lxdialog/util.c
@@ -338,7 +338,7 @@ void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
 		newl = 1;
 		word = tempstr;
 		while (word && *word) {
-			sp = index(word, ' ');
+			sp = strchr(word, ' ');
 			if (sp)
 				*sp++ = 0;
 
@@ -350,7 +350,7 @@ void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
 			if (wlen > room ||
 			    (newl && wlen < 4 && sp
 			     && wlen + 1 + strlen(sp) > room
-			     && (!(sp2 = index(sp, ' '))
+			     && (!(sp2 = strchr(sp, ' '))
 				 || wlen + 1 + (sp2 - sp) > room))) {
 				cur_y++;
 				cur_x = x;
diff --git a/lib/lib.c b/lib/lib.c
index cc441f9..a1f4a52 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -390,7 +390,7 @@ struct string_list *find_in_path(char *path, char *filename)
 	char *cwd = xgetcwd();
 
 	for (;;) {
-		char *next = path ? index(path, ':') : NULL;
+		char *next = path ? strchr(path, ':') : NULL;
 		int len = next ? next-path : strlen(path);
 		struct string_list *rnext;
 		struct stat st;
diff --git a/toys/sort.c b/toys/sort.c
index fabff69..6f9b93b 100644
--- a/toys/sort.c
+++ b/toys/sort.c
@@ -360,7 +360,7 @@ void sort_main(void)
                     // Which flag is this?
 
                     optlist = toys.which->options;
-                    temp2 = index(optlist, *temp);
+                    temp2 = strchr(optlist, *temp);
                     flag = (1<<(optlist-temp2+strlen(optlist)-1));
 
                     // Was it a flag that can apply to a key?
diff --git a/toys/which.c b/toys/which.c
index 1319836..0ffc725 100644
--- a/toys/which.c
+++ b/toys/which.c
@@ -30,7 +30,7 @@ static int which_in_path(char *filename)
 
 	// If they gave us a path, don't worry about $PATH or -a
 
-	if (index(filename, '/')) {
+	if (strchr(filename, '/')) {
 		// Confirm it has the executable bit set, and it's not a directory.
 		if (!access(filename, X_OK)) {
 			struct stat st;
-- 
1.7.5.1