From 0482576eec37874110782f0bae6dd0e1b4a357c6 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 18 Jan 2000 04:33:34 +0000 Subject: Update. 2000-01-17 Jakub Jelinek * sysdeps/unix/sysv/linux/bits/ipc.h: New file. * sysdeps/unix/sysv/linux/bits/sem.h: New file. * sysdeps/unix/sysv/linux/bits/shm.h: New file. * sysdeps/unix/sysv/linux/bits/msg.h: New file. * sysdeps/unix/sysv/linux/bits/alpha/ipc.h: Update for new ipc. * sysdeps/unix/sysv/linux/bits/alpha/sem.h: New file. * sysdeps/unix/sysv/linux/bits/alpha/shm.h: New file. * sysdeps/unix/sysv/linux/bits/alpha/msg.h: New file. * sysdeps/unix/sysv/linux/bits/sparc/ipc.h: New file. * sysdeps/unix/sysv/linux/bits/sparc/sem.h: New file. * sysdeps/unix/sysv/linux/bits/sparc/shm.h: New file. * sysdeps/unix/sysv/linux/bits/sparc/msg.h: New file. * sysdeps/unix/sysv/linux/msgctl.c (__old_msgctl): Renamed from msgctl. (__new_msgctl): New function. * sysdeps/unix/sysv/linux/semctl.c (__old_semctl): Renamed from semctl. (__new_semctl): New function. * sysdeps/unix/sysv/linux/shmctl.c (__old_shmctl): Renamed from shmctl. (__new_shmctl): New function. * sysdeps/unix/sysv/linux/msgget.c: Define __LIBC_IPC_INTERNAL. * sysdeps/unix/sysv/linux/msgrcv.c: Likewise. * sysdeps/unix/sysv/linux/semget.c: Likewise. * sysdeps/unix/sysv/linux/msgsnd.c: Likewise. * sysdeps/unix/sysv/linux/semop.c: Likewise. * sysdeps/unix/sysv/linux/shmat.c: Likewise. * sysdeps/unix/sysv/linux/shmdt.c: Likewise. * sysdeps/unix/sysv/linux/shmget.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/msgctl.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/shmctl.c: New file. * sysdeps/unix/sysv/linux/Versions: Add msgctl, semctl, shmctl. 2000-01-17 Jakub Jelinek * sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/Dist: Remove setres[ug]id. * sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c: Kill warnings. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Define needed syscalls. * sysdeps/unix/sysv/linux/pwrite64.c: Use proper prototype. * sysdeps/unix/sysv/linux/truncate64.c: Likewise. * sysdeps/unix/sysv/linux/kernel-features.h: [gs]etres[ug]id are available on sparc since 2.3.39. * sysdeps/unix/sysv/linux/execve.c: Kill warnings. 2000-01-17 Jakub Jelinek * sysdeps/unix/sysv/linux/i386/chown.c (__syscall_chown): Use proper prototype. (__real_chown): Return EINVAL if owner or group are out of the range -1U .. 65534. * sysdeps/unix/sysv/linux/i386/lchown.c (__lchown): Likewise. * sysdeps/unix/sysv/linux/i386/fchown.c (__fchown): Likewise. * sysdeps/unix/sysv/linux/i386/setresuid.c (__setresuid): Return EINVAL if ruid, euid or suid are out of the range -1U .. 65534. * sysdeps/unix/sysv/linux/i386/setresgid.c (__setresgid): Similarly. * sysdeps/unix/sysv/linux/i386/setreuid.c (__setreuid): Simplify. * sysdeps/unix/sysv/linux/i386/setregid.c (__setregid): Likewise. * sysdeps/unix/sysv/linux/m68k/chown.c (__syscall_chown): Use proper prototype. Don't include non-existant header. (__chown): Return EINVAL if owner or group are out of the range -1U .. 65534. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list (setresuid, setresgid): Inherit standard linux/syscalls.list definitions. * sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: Remove. * sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: Remove. * sysdeps/unix/sysv/linux/syscalls.list (setresgid): Provide __setresgid symbol. --- sysdeps/unix/sysv/linux/msgctl.c | 85 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 80 insertions(+), 5 deletions(-) (limited to 'sysdeps/unix/sysv/linux/msgctl.c') diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c index 7f0d7c55a4..ef3c92235c 100644 --- a/sysdeps/unix/sysv/linux/msgctl.c +++ b/sysdeps/unix/sysv/linux/msgctl.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1997, 1998, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , August 1995. @@ -17,20 +17,95 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#define __LIBC_IPC_INTERNAL #include #include #include +#include #include +#include "kernel-features.h" + /* Allows to control internal state and destruction of message queue objects. */ +int __old_msgctl (int, int, struct __old_msqid_ds *); +int __new_msgctl (int, int, struct msqid_ds *); int -msgctl (msqid, cmd, buf) - int msqid; - int cmd; - struct msqid_ds *buf; +__old_msgctl (int msqid, int cmd, struct __old_msqid_ds *buf) { return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, buf); } + +int +__new_msgctl (int msqid, int cmd, struct msqid_ds *buf) +{ +#if __ASSUME_32BITUIDS > 0 + return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd | __IPC_64, 0, buf); +#else + switch (cmd) { + case MSG_STAT: + case IPC_STAT: + case IPC_SET: + break; + default: + return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, buf); + } + + { + int save_errno = errno, result; + struct __old_msqid_ds old; + + /* Unfortunately there is no way how to find out for sure whether + we should use old or new msgctl. */ + result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd | __IPC_64, 0, buf); + if (result != -1 || errno != EINVAL) + return result; + + __set_errno(save_errno); + if (cmd == IPC_SET) + { + old.msg_perm.uid = buf->msg_perm.uid; + old.msg_perm.gid = buf->msg_perm.gid; + old.msg_perm.mode = buf->msg_perm.mode; + old.msg_qbytes = buf->msg_qbytes; + if (old.msg_perm.uid != buf->msg_perm.uid || + old.msg_perm.gid != buf->msg_perm.gid || + old.msg_qbytes != buf->msg_qbytes) + { + __set_errno (EINVAL); + return -1; + } + } + result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, &old); + if (result != -1 && cmd != IPC_SET) + { + memset(buf, 0, sizeof(*buf)); + buf->msg_perm.__key = old.msg_perm.__key; + buf->msg_perm.uid = old.msg_perm.uid; + buf->msg_perm.gid = old.msg_perm.gid; + buf->msg_perm.cuid = old.msg_perm.cuid; + buf->msg_perm.cgid = old.msg_perm.cgid; + buf->msg_perm.mode = old.msg_perm.mode; + buf->msg_perm.__seq = old.msg_perm.__seq; + buf->msg_stime = old.msg_stime; + buf->msg_rtime = old.msg_rtime; + buf->msg_ctime = old.msg_ctime; + buf->__msg_cbytes = old.__msg_cbytes; + buf->msg_qnum = old.msg_qnum; + buf->msg_qbytes = old.msg_qbytes; + buf->msg_lspid = old.msg_lspid; + buf->msg_lrpid = old.msg_lrpid; + } + return result; + } +#endif +} + +#if defined PIC && DO_VERSIONING +default_symbol_version (__new_msgctl, msgctl, GLIBC_2.2); +symbol_version (__old_msgctl, msgctl, GLIBC_2.0); +#else +weak_alias (__new_msgctl, msgctl); +#endif -- cgit v1.2.3