header: add definitions for RPC presence and IDsHEADmaster

This allows to check at compilation time for some rpc (as done for
example in glibc for thread_set/get_name() and host_page_size()).
Also the IDs can be useful for testing purposes, or when assembling
messages manually.
Message-ID: <20250106134649.391487-1-luca@orpolo.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/string.c b/string.c
index e182948..eeaaba2 100644
--- a/string.c
+++ b/string.c
@@ -27,6 +27,7 @@
 #include <sys/types.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <ctype.h>
 
 #include "error.h"
 #include "mig_string.h"
@@ -77,3 +78,13 @@ strstring(const_string_t string)
     else
 	return string;
 }
+
+char *
+strupper(const_string_t string)
+{
+    string_t upper = strmake(string);
+
+    for (int i=0; i<strlen(upper); i++)
+        upper[i] = toupper(upper[i]);
+    return upper;
+}