Fix build on ancient glibc without openat(AT_FDCWD

ncopa · tridge · commit 68e9add76a7b · 2025-01-16T06:43:57.000+11:00
Fixes: #701
diff --git a/syscall.c b/syscall.c
@@ -734,7 +734,7 @@ int secure_relative_open(const char *basedir, const char *relpath, int flags, mo
 		return -1;
 	}
 
-#if !defined(O_NOFOLLOW) || !defined(O_DIRECTORY)
+#if !defined(O_NOFOLLOW) || !defined(O_DIRECTORY) || !defined(AT_FDCWD)
 	// really old system, all we can do is live with the risks
 	if (!basedir) {
 		return open(relpath, flags, mode);

Original file line number	Diff line number	Diff line change
`@@ -734,7 +734,7 @@ int secure_relative_open(const char basedir, const char relpath, int flags, mo`
`734`	`734`	`return -1;`
`735`	`735`	`}`
`736`	`736`
`737`		`-#if !defined(O_NOFOLLOW) \|\| !defined(O_DIRECTORY)`
	`737`	`+#if !defined(O_NOFOLLOW) \|\| !defined(O_DIRECTORY) \|\| !defined(AT_FDCWD)`
`738`	`738`	`// really old system, all we can do is live with the risks`
`739`	`739`	`if (!basedir) {`
`740`	`740`	`return open(relpath, flags, mode);`