blob: 96c799cfca29857d55cebfed16433238c0fce6fe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
Subject: [musl] [PATCH] extend gethostid beyond a stub
Archived-At: <https://inbox.vuxu.org/musl/20210420191519.23822-3-ericonr@disroot.org/>
List-Archive: <https://inbox.vuxu.org/musl/>
List-Post: <mailto:musl@inbox.vuxu.org>
From: Érico Rolim <erico.erc@gmail.com>
Implement part of the glibc behavior, where the 32-bit identifier stored
in /etc/hostid, if the file exists, is returned. If this file doesn't
contain at least 32 bits or can't be opened for some reason, return 0.
---
src/misc/gethostid.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/misc/gethostid.c b/src/misc/gethostid.c
index 25bb35db..d529de9c 100644
--- a/src/misc/gethostid.c
+++ b/src/misc/gethostid.c
@@ -1,6 +1,19 @@
#include <unistd.h>
+#include <stdio.h>
+#include <stdint.h>
long gethostid()
{
- return 0;
+ FILE *f;
+ int32_t rv = 0;
+
+ f = fopen("/etc/hostid", "reb");
+ if (f) {
+ if (fread(&rv, sizeof(rv), 1, f) == 0) {
+ rv = 0;
+ }
+ fclose(f);
+ }
+
+ return rv;
}
--
2.31.1
|
