glibc/socket/sa_len.c

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2013-08-27 17:34:16 +00:00
/* Helper for SA_LEN macro.
Copyright (C) 2013-2024 Free Software Foundation, Inc.
2013-08-27 17:34:16 +00:00
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
<https://www.gnu.org/licenses/>. */
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#include <sys/socket.h>
/* If _HAVE_SA_LEN is defined, then SA_LEN just uses sockaddr.sa_len
and there is no need for a helper function. */
#ifndef _HAVE_SA_LEN
/* All configurations have at least these two headers
and their associated address families. */
# include <netinet/in.h>
# include <sys/un.h>
/* More-specific sa_len.c files #define these various HAVE_*_H
macros and then #include this file. */
# ifdef HAVE_NETASH_ASH_H
# include <netash/ash.h>
# endif
# ifdef HAVE_NETATALK_AT_H
# include <netatalk/at.h>
# endif
# ifdef HAVE_NETAX25_AX25_H
# include <netax25/ax25.h>
# endif
# ifdef HAVE_NETECONET_EC_H
# include <neteconet/ec.h>
# endif
# ifdef HAVE_NETIPX_IPX_H
# include <netipx/ipx.h>
# endif
# ifdef HAVE_NETPACKET_PACKET_H
# include <netpacket/packet.h>
# endif
# ifdef HAVE_NETROSE_ROSE_H
# include <netrose/rose.h>
# endif
# ifdef HAVE_NETIUCV_IUCV_H
# include <netiucv/iucv.h>
# endif
int
__libc_sa_len (sa_family_t af)
{
switch (af)
{
# ifdef HAVE_NETATALK_AT_H
case AF_APPLETALK:
return sizeof (struct sockaddr_at);
# endif
# ifdef HAVE_NETASH_ASH_H
case AF_ASH:
return sizeof (struct sockaddr_ash);
# endif
# ifdef HAVE_NETAX25_AX25_H
case AF_AX25:
return sizeof (struct sockaddr_ax25);
# endif
# ifdef HAVE_NETECONET_EC_H
case AF_ECONET:
return sizeof (struct sockaddr_ec);
# endif
case AF_INET:
return sizeof (struct sockaddr_in);
case AF_INET6:
return sizeof (struct sockaddr_in6);
# ifdef HAVE_NETIPX_IPX_H
case AF_IPX:
return sizeof (struct sockaddr_ipx);
# endif
# ifdef HAVE_NETIUCV_IUCV_H
case AF_IUCV:
return sizeof (struct sockaddr_iucv);
# endif
case AF_LOCAL:
return sizeof (struct sockaddr_un);
# ifdef HAVE_NETPACKET_PACKET_H
case AF_PACKET:
return sizeof (struct sockaddr_ll);
# endif
# ifdef HAVE_NETROSE_ROSE_H
case AF_ROSE:
return sizeof (struct sockaddr_rose);
# endif
}
return 0;
}
libc_hidden_def (__libc_sa_len)
#endif /* Not _HAVE_SA_LEN. */