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* desc.c (sys_epoll_wait): Move body of function to ...
(epoll_wait_common): ...here. New function.
(sys_epoll_pwait): New function.
* linux/syscall.h: Declare sys_epoll_pwait.
* linux/syscallent.h: Add entry for epoll_pwait.
* linux/x86_64/syscallent.h: Likewise.
* defs.h: Add new parameter to printtv_bitness prototype.
(printttv): Pass zero for the new parameter.
(printtv_special): New macro.
* desc.c (decode_select): Pass zero for the new parameter of
printtv_bitness.
* file.c (utimensatflags): New macro.
(sys_osf_utimes): Pass zero for the new parameter of
printtv_bitness.
(sys_utimes): Likewise.
(sys_futimesat): Likewise.
(decode_utimes): Add new parameter. Pass it to the
printtv_bitness calls. Fix printing of time values.
(sys_utimensat): New function.
* time.c (UTIME_NOW, UTIME_OMIT): Define if not already
happened.
(printtv_bitness): Add new parameter. Print special UTIME_*
values as strings if set.
(sys_osf_gettimeofday): Pass zero for the new parameter of
printtv_bitness.
(sys_osf_settimeofday): Likewise.
* linux/syscall.h: Declare sys_utimensat.
* linux/syscallent.h: Add utimensat entry.
* linux/x86_64/syscallent.h: Likewise.
Fix open(2) flags parser.
* defs.h (tprint_open_modes): New function.
* desc.c (sprint_open_modes): New function.
(sys_fcntl): Use tprint_open_modes() and sprint_open_modes().
* file.c (openmodes): Split xlat into open_access_modes and
open_mode_flags.
(tprint_open_modes): New function.
(decode_open): Use it.
* ipc.c (sys_mq_open, printmqattr): Likewise.
Fixes RH#222385.
Make several global variables static.
#ifdef definitions of rarely unused functions.
* defs.h (rflag, tflag, outfname): Remove.
* strace.c (iflag, interactive, pflag_seen, rflag, tflag,
outfname, username): Make static.
* desc.c (sys_getdtablesize): Define only for
ALPHA || FREEBSD || SUNOS4.
* file.c (sys_fchroot): Define only for SUNOS4 || SVR4.
(sys_mkfifo): Define only for FREEBSD.
* mem.c (sys_sbrk): Define only for FREEBSD || SUNOS4.
(sys_getpagesize): Define only for
ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4.
* net.c (sys_so_socket): Define only for SVR4.
* process.c (sys_gethostid): Define only for
FREEBSD || SUNOS4 || SVR4.
(sys_gethostname): Define only for
ALPHA || FREEBSD || SUNOS4 || SVR4.
(sys_setpgrp): Define only for ALPHA || SUNOS4 || SVR4.
(sys_execv): Define only for SPARC || SPARC64 || SUNOS4.
* signal.c (sys_sigblock): Define only for FREEBSD || SUNOS4.
(sys_sighold, sys_sigwait): Define only for SVR4.
(sys_killpg): Define only for FREEBSD || SUNOS4.
* stream.c (sys_getmsg): Define only for
SPARC || SPARC64 || SUNOS4 || SVR4.
* syscall.c (sys_indir): Define only for SUNOS4.
Deal with memory management issues.
* defs.h (tprint_iov): Update prototype.
* desc.c (sys_epoll_wait) [HAVE_SYS_EPOLL_H]: Do not allocate
epoll_event array of arbitrary size on the stack, to avoid
stack overflow.
* file.c (print_xattr_val): Check for integer overflow during
malloc size calculation, to avoid heap corruption.
* io.c (tprint_iov) [HAVE_SYS_UIO_H]: Check for integer overflow
during malloc size calculation, to avoid heap corruption.
Change iovec array handling to avoid heap memory allocation.
* mem.c (get_nodes) [LINUX]: Check for integer overflow during
size calculation and do not allocate array of arbitrary size on
the stack, to avoid stack overflow.
* net.c (printcmsghdr) [HAVE_SENDMSG]: Do not allocate array of
arbitrary size on the stack, to avoid stack overflow. Do not
trust cmsg.cmsg_len to avoid read beyond the end of allocated
object.
(printmsghdr) [HAVE_SENDMSG]: Update tprint_iov() usage.
* process.c (sys_setgroups): Check for integer overflow during
malloc size calculation, to avoid heap corruption. Change gid_t
array handling to avoid heap memory allocation.
(sys_getgroups): Likewise.
(sys_setgroups32) [LINUX]: Likewise.
(sys_getgroups32) [LINUX]: Likewise.
* stream.c (sys_poll) [HAVE_SYS_POLL_H]: Check for integer
overflow during malloc size calculation, to avoid heap corruption.
Change pollfd array handling to avoid heap memory allocation.
* system.c (sys_sysctl) [LINUX]: Check for integer overflow
during malloc size calculation, to avoid heap corruption.
* util.c (dumpiov) [HAVE_SYS_UIO_H]: Check for integer overflow
during malloc size calculation, to avoid heap corruption.
Fixes RH#159196.
* desc.c (decode_select): Calculate size of passed fd_set vectors and
copy in the user's size rather than the standard sizeof(fd_set).
Fixes Debian bug #65654.
* configure.ac: Check for sys/epoll.h.
* desc.c: Protect #include <sys/epoll.h> with [HAVE_SYS_EPOLL_H].
(epollctls, epollevents): Protect each entry with #ifdef on its macro.
* configure.ac: Check for sys/epoll.h.
* desc.c: Protect #include <sys/epoll.h> with [HAVE_SYS_EPOLL_H].
(epollctls, epollevents): Protect each entry with #ifdef on its macro.
