From 2ca70d00ec9b4486bca372873041c9e0233d36c4 Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Mon, 4 Aug 2008 17:11:41 +0200
Subject: [PATCH] Move valid_fd_012() from string.c to fd.c.

---
 fd.c     | 21 +++++++++++++++++++++
 fd.h     |  1 +
 string.c | 21 ---------------------
 string.h |  1 -
 4 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/fd.c b/fd.c
index 58851723..8fc1abad 100644
--- a/fd.c
+++ b/fd.c
@@ -426,3 +426,24 @@ again:
 		goto again;
 	return ret;
 }
+
+/**
+ * Ensure that file descriptors 0, 1, and 2 are valid.
+ *
+ * Common approach that opens /dev/null until it gets a file descriptor greater
+ * than two.
+ *
+ * \sa okir's Black Hats Manual.
+ */
+void valid_fd_012(void)
+{
+	while (1) {
+		int fd = open("/dev/null", O_RDWR);
+		if (fd < 0)
+			exit(EXIT_FAILURE);
+		if (fd > 2) {
+			close(fd);
+			break;
+		}
+	}
+}
diff --git a/fd.h b/fd.h
index 22141be2..ae692b4f 100644
--- a/fd.h
+++ b/fd.h
@@ -24,3 +24,4 @@ int mmap_full_file(const char *filename, int open_mode, void **map,
 	size_t *size, int *fd_ptr);
 int para_munmap(void *start, size_t length);
 int write_ok(int fd);
+void valid_fd_012(void);
diff --git a/string.c b/string.c
index 752fb8f9..c73ec1e6 100644
--- a/string.c
+++ b/string.c
@@ -327,27 +327,6 @@ __must_check unsigned split_args(char *args, char *** const argv_ptr, const char
 	return n;
 }
 
-/**
- * Ensure that file descriptors 0, 1, and 2 are valid.
- *
- * Common approach that opens /dev/null until it gets a file descriptor greater
- * than two.
- *
- * \sa okir's Black Hats Manual.
- */
-void valid_fd_012(void)
-{
-	while (1) {
-		int fd = open("/dev/null", O_RDWR);
-		if (fd < 0)
-			exit(EXIT_FAILURE);
-		if (fd > 2) {
-			close(fd);
-			break;
-		}
-	}
-}
-
 /**
  * Get the own hostname.
  *
diff --git a/string.h b/string.h
index 561ff4e8..e91a140b 100644
--- a/string.h
+++ b/string.h
@@ -40,7 +40,6 @@ __must_check __malloc char *para_logname(void);
 __must_check __malloc char *para_homedir(void);
 __must_check unsigned split_args(char *args, char *** const argv_ptr, const char *delim);
 __malloc char *para_hostname(void);
-void valid_fd_012(void);
 __printf_2_3 int para_printf(struct para_buffer *b, const char *fmt, ...);
 /** Used for for_each_line() and for_each_line_ro(). */
 typedef int line_handler_t(char *, void *);
-- 
2.39.5