misc: Convert daemon () to GNU coding style

This is nicer, and is going to be required for the following changes
to reasonably stay within the 79 column limit.

No functional change.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Message-Id: <20230419160207.65988-2-bugaevc@gmail.com>

1 files changed, 49 insertions, 39 deletions

diff --git a/misc/daemon.c b/misc/daemon.c
index 3c73ac2ab8..14577e40ad 100644
--- a/misc/daemon.c
+++ b/misc/daemon.c
@@ -43,50 +43,60 @@ static char sccsid[] = "@(#)daemon.c	8.1 (Berkeley) 6/4/93";
 int
 daemon (int nochdir, int noclose)
 {
-	int fd;
+  int fd;
 
-	switch (__fork()) {
-	case -1:
-		return (-1);
-	case 0:
-		break;
-	default:
-		_exit(0);
-	}
+  switch (__fork ())
+    {
+    case -1:
+      return -1;
 
-	if (__setsid() == -1)
-		return (-1);
+    case 0:
+      break;
 
-	if (!nochdir)
-		(void)__chdir("/");
+    default:
+      _exit (0);
+    }
 
-	if (!noclose) {
-		struct __stat64_t64 st;
+  if (__setsid () == -1)
+    return -1;
 
-		if ((fd = __open_nocancel(_PATH_DEVNULL, O_RDWR, 0)) != -1
-		    && __glibc_likely (__fstat64_time64 (fd, &st) == 0)) {
-			if (__builtin_expect (S_ISCHR (st.st_mode), 1) != 0
+  if (!nochdir)
+    (void) __chdir ("/");
+
+  if (!noclose)
+    {
+      struct __stat64_t64 st;
+
+      fd = __open_nocancel (_PATH_DEVNULL, O_RDWR, 0);
+      if (fd != -1 && __glibc_likely (__fstat64_time64 (fd, &st) == 0))
+        {
+          if (__builtin_expect (S_ISCHR (st.st_mode), 1) != 0
 #if defined DEV_NULL_MAJOR && defined DEV_NULL_MINOR
-			    && (st.st_rdev
-				== makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR))
+              && (st.st_rdev == makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR))
 #endif
-			    ) {
-				(void)__dup2(fd, STDIN_FILENO);
-				(void)__dup2(fd, STDOUT_FILENO);
-				(void)__dup2(fd, STDERR_FILENO);
-				if (fd > 2)
-					(void)__close (fd);
-			} else {
-				/* We must set an errno value since no
-				   function call actually failed.  */
-				__close_nocancel_nostatus (fd);
-				__set_errno (ENODEV);
-				return -1;
-			}
-		} else {
-			__close_nocancel_nostatus (fd);
-			return -1;
-		}
-	}
-	return (0);
+             )
+            {
+              (void) __dup2 (fd, STDIN_FILENO);
+              (void) __dup2 (fd, STDOUT_FILENO);
+              (void) __dup2 (fd, STDERR_FILENO);
+              if (fd > 2)
+                (void) __close (fd);
+            }
+          else
+            {
+              /* We must set an errno value since no function call
+                 actually failed.  */
+              __close_nocancel_nostatus (fd);
+              __set_errno (ENODEV);
+              return -1;
+            }
+        }
+      else
+        {
+          __close_nocancel_nostatus (fd);
+          return -1;
+        }
+    }
+
+  return 0;
 }