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path-util: unify code for detecting OS trees
[elogind.git]
/
src
/
shared
/
path-util.c
diff --git
a/src/shared/path-util.c
b/src/shared/path-util.c
index 0b50ea646aa984a3a1a64b15946f438ac17527e1..b623fc3dd5adeb9cad7034ee05425b73dd29ab7b 100644
(file)
--- a/
src/shared/path-util.c
+++ b/
src/shared/path-util.c
@@
-413,3
+413,15
@@
int path_is_read_only_fs(const char *path) {
return !!(st.f_flag & ST_RDONLY);
}
return !!(st.f_flag & ST_RDONLY);
}
+
+int path_is_os_tree(const char *path) {
+ char *p;
+ int r;
+
+ /* We use /etc/os-release as flag file if something is an OS */
+
+ p = strappenda(path, "/etc/os-release");
+ r = access(p, F_OK);
+
+ return r < 0 ? 0 : 1;
+}