[DTrace-devel] [PATCH] bpf: dt_inet_ntoa() should return the length of its result
Kris Van Hees
kris.van.hees at oracle.com
Fri Jul 21 18:00:01 UTC 2023
The implementation of inet_ntoa6() and inet_ntop() is greatly helped if
dt_inet_ntoa() returns the number of characters in its result. Thid
change is not visible to users.
Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
---
bpf/inet_ntoa.S | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/bpf/inet_ntoa.S b/bpf/inet_ntoa.S
index 1ef3b13a..08b63b8d 100644
--- a/bpf/inet_ntoa.S
+++ b/bpf/inet_ntoa.S
@@ -114,7 +114,7 @@ dt_inet_ntoa_write_uint8:
#undef PTR
/*
- * void dt_inet_ntoa(uint8_t *src, char *dst) {
+ * uint64_t dt_inet_ntoa(uint8_t *src, char *dst) {
* uint64_t off, inp, len;
*
* bpf_probe_read(fp + -4, 4, src);
@@ -142,6 +142,8 @@ dt_inet_ntoa_write_uint8:
*
* done:
* dst[off] = '\0';
+ *
+ * return off;
* }
*
*/
--
2.39.3
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