libustcomm: change char * to const char * where relevant

[ust.git] / libustcomm / ustcomm.c

diff --git a/libustcomm/ustcomm.c b/libustcomm/ustcomm.c
index 6ddd6d82a7421303b339e3ff0ed98b328fd25885..fd5e360e343a7e495330115d060396bdf4179365 100644 (file)
--- a/libustcomm/ustcomm.c
+++ b/libustcomm/ustcomm.c
@@ -612,7 +612,7 @@ void ustcomm_fini_app(struct ustcomm_app *handle)
        }
 }
 
-static char *find_tok(char *str)
+static const char *find_tok(const char *str)
 {
        while(*str == ' ') {
                str++;
@@ -624,7 +624,7 @@ static char *find_tok(char *str)
        return str;
 }
 
-static char *find_sep(char *str)
+static const char *find_sep(const char *str)
 {
        while(*str != ' ') {
                str++;
@@ -636,11 +636,11 @@ static char *find_sep(char *str)
        return str;
 }
 
-int nth_token_is(char *str, char *token, int tok_no)
+int nth_token_is(const char *str, const char *token, int tok_no)
 {
        int i;
-       char *start;
-       char *end;
+       const char *start;
+       const char *end;
 
        for(i=0; i<=tok_no; i++) {
                str = find_tok(str);
@@ -665,12 +665,12 @@ int nth_token_is(char *str, char *token, int tok_no)
        return 1;
 }
 
-char *nth_token(char *str, int tok_no)
+char *nth_token(const char *str, int tok_no)
 {
        static char *retval = NULL;
        int i;
-       char *start;
-       char *end;
+       const char *start;
+       const char *end;
 
        for(i=0; i<=tok_no; i++) {
                str = find_tok(str);