[glibc] misc: Convert daemon () to GNU coding style

[glibc] misc: Convert daemon () to GNU coding style

[Samuel Thibault]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=28a441cc577e31e95742b9ec5f1737b86749b712

commit 28a441cc577e31e95742b9ec5f1737b86749b712
Author: Sergey Bugaev <bugaevc@gmail.com>
Date:   Wed Apr 19 19:02:01 2023 +0300

    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>

Diff:
---
 misc/daemon.c | 88 +++++++++++++++++++++++++++++++++--------------------------
 1 file 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;
 }