bootctl: move toupper() implementation to string-util.h

We already have tolower() calls there, hence let's unify this at one place.
Also, update the code to only use ASCII operations, so that we don't end up
being locale dependant.

2 files changed, 22 insertions, 0 deletions

diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index 293a15f9c0..e9856b90d3 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -323,6 +323,14 @@ char ascii_tolower(char x) {
         return x;
 }
 
+char ascii_toupper(char x) {
+
+        if (x >= 'a' && x <= 'z')
+                return x - 'a' + 'A';
+
+        return x;
+}
+
 char *ascii_strlower(char *t) {
         char *p;
 
@@ -334,6 +342,17 @@ char *ascii_strlower(char *t) {
         return t;
 }
 
+char *ascii_strupper(char *t) {
+        char *p;
+
+        assert(t);
+
+        for (p = t; *p; p++)
+                *p = ascii_toupper(*p);
+
+        return t;
+}
+
 char *ascii_strlower_n(char *t, size_t n) {
         size_t i;
 
diff --git a/src/basic/string-util.h b/src/basic/string-util.h
index 1209e1e2e1..b75aba63c2 100644
--- a/src/basic/string-util.h
+++ b/src/basic/string-util.h
@@ -137,6 +137,9 @@ char ascii_tolower(char x);
 char *ascii_strlower(char *s);
 char *ascii_strlower_n(char *s, size_t n);
 
+char ascii_toupper(char x);
+char *ascii_strupper(char *s);
+
 int ascii_strcasecmp_n(const char *a, const char *b, size_t n);
 int ascii_strcasecmp_nn(const char *a, size_t n, const char *b, size_t m);