From: Paul Donald <newtwen+github@gmail.com>
Date: Tue, 2 Dec 2025 23:13:14 +0000 (+0100)
Subject: file: bump sz_size to 64 bits
X-Git-Url: http://git.openwrt.org/%22https:/collectd.org//%22/%22https:/collectd.org/%22?a=commitdiff_plain;h=a284e7751fa76a0a9a5db3893e8abf335da89aaf;p=project%2Frpcd.git

file: bump sz_size to 64 bits

Some systems reveal /proc/kcore which for 64 bit systems has a size of

140,737,471,586,304 bytes.

This is a virtual mapping of the maximum possible RAM in a system. But if a 32
bit value tries to hold this, it is displayed as the erroneous value

-16,769,024 bytes

Bump the size to 64 bits to hold the correct value (and correct values for large
files).

Before this patch:

ubus call file list '{"path":"/proc"}'
...
{
	"name": "kcore",
	"type": "file",
	"size": -16769024,
	"mode": 33024,
	"atime": 1764716086,
	"mtime": 1764716086,
	"ctime": 1764716086,
	"inode": -268435271,
	"uid": 0,
	"gid": 0,
},
...

After this patch:

ubus call file list '{"path":"/proc"}'
...
{
	"name": "kcore",
	"type": "file",
	"size": 140737471586304,
	"mode": 33024,
	"atime": 1764716086,
	"mtime": 1764716086,
	"ctime": 1764716086,
	"inode": -268435271,
	"uid": 0,
	"gid": 0,
},
...

Tested on: OpenWrt SNAPSHOT r32139-1f879b8839 / 6.12.59
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Link: https://github.com/openwrt/rpcd/pull/22
Signed-off-by: Robert Marko <robimarko@gmail.com>
---

diff --git a/file.c b/file.c
index 89ba6b4..591ab6b 100644
--- a/file.c
+++ b/file.c
@@ -490,7 +490,7 @@ static void
 _rpc_file_add_stat(struct stat *s)
 {
 	blobmsg_add_string(&buf, "type", d_types[_get_stat_type(s)]);
-	blobmsg_add_u32(&buf, "size",  s->st_size);
+	blobmsg_add_u64(&buf, "size",  s->st_size);
 	blobmsg_add_u32(&buf, "mode",  s->st_mode);
 	blobmsg_add_u32(&buf, "atime", s->st_atime);
 	blobmsg_add_u32(&buf, "mtime", s->st_mtime);