From ba9234d947af45f15b1e4dece1a9cd447cecc038 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 4 Jul 1998 10:39:13 +0000 Subject: Update. 1998-07-04 10:14 Ulrich Drepper * libio/Makefile (routines): Add iofread_u and iofwrite_u. * libio/Versions: Add fread_unlocked and fwrite_unlocked. * Makerules (lib%.so): Adjust ignore pattern for last makefile change. * time/tzfile.c (decode): Optimize by using bswap_32. (__tzfile_read): Use _unlocked stream functions. Correct setting of __tzname array values. (__tzfile_compute): Correct setting of __tzname array values. * time/tzset.c (__tzstring): Clean up a bit. 1998-06-29 19:01 Jim Wilson * posix/regex.c (re_comp): Add cast to char * before gettext calls. 1998-06-30 Andreas Jaeger * sysdeps/unix/bsd/poll.c (__poll): Allocate fd_set dynamically so that fd can be bigger than FD_SETSIZE. 1998-07-01 Andreas Jaeger * nscd/grpcache.c: Include . * nscd/pwdcache.c: Likewise. * nis/nis_modify.c: Include . * nis/nis_add.c: Likewise. * nis/nis_checkpoint.c: Likewise. * posix/runptests.c: Likewise. * sysdeps/generic/statvfs64.c: Likewise. * sysdeps/generic/fstatvfs64.c: Likewise. 1998-07-03 13:16 Ulrich Drepper * localedata/charmaps/ISO-8859-9: Change mapping for 0xea, 0xec, 0xef to match data from Unicode. Reported by Michael Deutschmann . 1998-07-03 11:45 Ulrich Drepper * stdio-common/printf.h: Define printf_function and printf_arginfo_function types using __PMT not __P. Reported by Marc Lehmann. 1998-07-02 14:07 -0400 Zack Weinberg * assert/test-assert.c: New test. * assert/test-assert-perr.c: New test. * assert/Makefile (tests): Add test-assert and test-assert-perr. 1998-07-02 13:45 Zack Weinberg BSD-style SCM_CREDS support. * sysdeps/unix/sysv/linux/socket.h: Define struct cmsgcred and SCM_CREDS. * sysdeps/unix/sysv/linux/sendmsg.c: New file. Convert user visible SCM_CREDS packet to what the kernel wants. * sysdeps/unix/sysv/linux/recvmsg.c: New file. Convert SCM_CREDS packet output by kernel to what users want. * sysdeps/unix/sysv/linux/sendmsg.S: Moved to... * sysdeps/unix/sysv/linux/__sendmsg.S: here. * sysdeps/unix/sysv/linux/recvmsg.S: Moved to... * sysdeps/unix/sysv/linux/__recvmsg.S: here. * sysdeps/unix/sysv/linux/Makefile [subdir=socket]: Add __sendmsg and __recvmsg to sysdep_routines. * sysdeps/unix/sysv/linux/Dist: Add __sendmsg.S and __recvmsg.S. 1998-07-02 Thorsten Kukuk * nscd/grpcache.c: Fix gid pointer handling and debug messages. * nscd/pwdcache.c: Fix uid pointer handling and debug messages. * nscd/nscd.c: Check, if pthread_create fails. 1998-07-02 Andreas Jaeger * stdio-common/test_rdwr.c (main): Use %Zu for size_t in printf format strings. * stdio-common/bug1.c (main): Likewise. * stdio-common/bug5.c (main): Likewise. * stdio-common/tstgetln.c (main): Likewise. * elf/sprof.c (generate_call_graph): Likewise. (load_shobj): Likewise. * posix/runptests.c (main): Likewise. * string/tst-strlen.c (main): Likewise. * sysdeps/libm-ieee754/e_acos.c (__ieee754_acos): Remove unused variable q3. * sysdeps/libm-ieee754/e_asin.c (__ieee754_asin): Likewise 1998-07-03 Andreas Jaeger * wctype/Versions: Add __towctrans. Noticed by Alex Buell . 1998-07-02 Mark Kettenis * grp/initgroups.c (compat_call): Only call dynamically loaded functions if they are really present. 1998-07-02 Mark Kettenis * sysdeps/unix/sysv/linux/bits/sched.h: Move __END_DECLS within #ifdef that contains __BEGIN_DECLS. 1998-07-02 Andreas Schwab * libio/iofwrite.c: Fix return value when size == 0. 1998-07-01 Andreas Schwab * posix/Makefile (distribute): Add annexc.c. (generated): Add $(objpfx)annexc and $(objpfx)annexc.out. 1998-07-01 Andreas Schwab * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/pthreadtypes.h here, and do not clobber headers. * sysdeps/unix/sysv/linux/Dist: Add bits/pthreadtypes.h. 1998-07-03 Andreas Jaeger * timezone/tst-timezone.c: Add tests for tzname variable. 1998-07-03 12:17 Zack Weinberg * Makefile [versioning=yes]: Build the mapfiles with a pattern rule that lists all of them as targets. (sysd-versions): Depend only on Versions.def. Write a Makefile fragment that defines $(vers-libs) based on contents of that file; then include it. (lib-noranlib): Depend on lib-mapfiles not sysd-versions. (lib-mapfiles): New target, depends on sysd-versions and $(vers-libs). Predicate all this on avoid-generated unset as well as versioning. 1998-07-03 14:35 Andreas Schwab --- sysdeps/unix/sysv/linux/recvmsg.c | 93 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/recvmsg.c (limited to 'sysdeps/unix/sysv/linux/recvmsg.c') diff --git a/sysdeps/unix/sysv/linux/recvmsg.c b/sysdeps/unix/sysv/linux/recvmsg.c new file mode 100644 index 0000000000..04cf230828 --- /dev/null +++ b/sysdeps/unix/sysv/linux/recvmsg.c @@ -0,0 +1,93 @@ +/* Copyright (C) 1998 Free Software Foundation, Inc. + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include + +#include + +/* The kernel expects this structure in SCM_CREDS messages. + * Note: sizeof(struct __kernel_ucred) <= sizeof(struct cmsgcred) must hold. + */ +struct __kernel_ucred +{ + __kernel_pid_t pid; + __kernel_uid_t uid; + __kernel_gid_t gid; +}; + +extern int __recvmsg (int, struct msghdr *, int); + +int +recvmsg (fd, message, flags) + int fd; + struct msghdr *message; + int flags; +{ + struct cmsghdr *cm; + int ret; + int found_creds = 0; + + /* Must check for space first. */ + cm = CMSG_FIRSTHDR (message); + while (cm) + { + if (cm->cmsg_type == SCM_CREDS) + { + if (cm->cmsg_len < CMSG_SPACE (sizeof (struct cmsgcred))) + { + __set_errno (EINVAL); + return -1; + } + found_creds = 1; + } + cm = CMSG_NXTHDR (message, cm); + } + + + ret = __recvmsg (fd, message, flags); + + if (ret == -1) + return ret; + + /* Postprocess the message control block for SCM_CREDS. */ + cm = CMSG_FIRSTHDR (message); + if (found_creds) + while (cm) + { + if (cm->cmsg_type == SCM_CREDS) + { + struct cmsgcred *c = (struct cmsgcred *) CMSG_DATA (cm); + struct __kernel_ucred u; + int i; + memcpy (&u, CMSG_DATA (cm), sizeof (struct __kernel_ucred)); + + c->cmcred_pid = u.pid; + c->cmcred_uid = u.uid; + c->cmcred_gid = u.gid; + + c->cmcred_euid = -1; + c->cmcred_ngroups = 0; + for (i = 0; i < CMGROUP_MAX; i++) + c->cmcred_groups[i] = -1; + } + cm = CMSG_NXTHDR (message, cm); + } + return ret; +} -- cgit v1.2.1