From: Alejandro Colomar <alx.manpages@gmail.com>
Date: Wed, 3 Feb 2021 21:36:00 +0000 (+0100)
Subject: getsockname.2: Use restrict in prototypes
X-Git-Tag: man-pages-5.11~223
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d18bee2989cea050350ea9c29f45d8a249c771f;p=thirdparty%2Fman-pages.git

getsockname.2: Use restrict in prototypes

POSIX specifies that the 2nd and 3rd parameters to getsockname()
shall be 'restrict'.  Glibc uses 'restrict' too.
Let's use it here too.

......

.../glibc$ grep_syscall_wrapper getsockname
socket/sys/socket.h:116:
extern int getsockname (int __fd, __SOCKADDR_ARG __addr,
			socklen_t *__restrict __len) __THROW;
.../glibc$ grep -rn '# *define __SOCKADDR_ARG'
socket/sys/socket.h:58:
 # define __SOCKADDR_ARG		struct sockaddr *__restrict
.../glibc$

function grep_syscall_wrapper()
{
	if ! [ -v 1 ]; then
		>&2 echo "Usage: ${FUNCNAME[0]} <syscall>";
		return ${EX_USAGE};
	fi

	find * -type f \
	|grep '\.h$' \
	|sort -V \
	|xargs pcregrep -Mn \
	  "(?s)^[^\s#][\w\s]+\s+\**${1}\s*\([\w\s()[\]*,]*?(...)?\)[\w\s()]*;" \
	|sed -E 's/^[^:]+:[0-9]+:/&\n/';
}

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man2/getsockname.2 b/man2/getsockname.2
index 55db4b84c2..bf36e260b1 100644
--- a/man2/getsockname.2
+++ b/man2/getsockname.2
@@ -44,8 +44,8 @@ getsockname \- get socket name
 .nf
 .B #include <sys/socket.h>
 .PP
-.BI "int getsockname(int " sockfd ", struct sockaddr *" addr \
-", socklen_t *" addrlen );
+.BI "int getsockname(int " sockfd ", struct sockaddr *restrict " addr ,
+.BI "                socklen_t *restrict " addrlen );
 .fi
 .SH DESCRIPTION
 .BR getsockname ()