This method is used to be able to decide whether a function name
matched the "do_" ... "_op" structure of some Xen hypercalls.
Signed-off-by: Norbert Manthey <nmanthey@xxxxxxxxx>
---
check_user_data2.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/check_user_data2.c b/check_user_data2.c
index 7c11b58..2455e62 100644
--- a/check_user_data2.c
+++ b/check_user_data2.c
@@ -962,6 +962,22 @@ static void set_called(const char *name, struct symbol *sym, char *key, char *va
set_state(my_call_id, "this_function", NULL, &called);
}
+static int ends_with(const char *symbol, const char *suffix)
+{
+ int l = strnlen(symbol, 128);
+ int e = strnlen(suffix, 16);
+
+ // is the string smaller than the suffix?
+ if(l < e) return 0;
+
+ // check from the end whether the strings match
+ for(int i = 0; i <= e; ++ i)
+ if( symbol[l-i] != suffix[e-i]) return 0;
+
+ // the suffix matches
+ return 1;
+}
+
static void match_syscall_definition(struct symbol *sym)
{
struct symbol *arg;
--
2.7.4
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