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* system.c (sys_mount): Be careful when printing umovestr result,
it may have no terminating NUL.
(sys_sysmips): Likewise.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This allows us to avoid having code to malloc them, and code to check
for malloc failure. Resulting code decrease:
text data bss dec hex filename
10175 0 16 10191 27cf system.o.old
9797 0 0 9797 2645 system.o
* system.c (sys_capget): Put cap_user_header_t and cap_user_data_t
on stack, rather than allocating them in heap. These structures
are very small (a few integer fields), stack is a better place
for them.
(sys_capset): Likewise.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
* configure.ac: Reformat AC_CHECK_HEADERS to keep it sorted and
easily updated, and reduce merging errors in the future.
* system.c: Convert all non-standard #ifdef checks for specific
headers to regular #ifdef HAVE_*_H checks.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
by Mike Frysinger (vapier AT gentoo.org).
(sys_sram_alloc): Fix improperly used %zu:
tcp->u_arg is not a size_t, it is a long.
* net.c (printcmsghdr): Fix improperly used %zu:
struct cmsghdr::cmsg_len is not a size_t.
Update mount parser to match kernel behaviour.
* system.c [LINUX] (MS_VERBOSE): Rename to MS_SILENT.
[LINUX] (MS_UNBINDABLE, MS_PRIVATE, MS_SLAVE, MS_SHARED):
New macros.
[LINUX] (mount_flags): Add them.
[LINUX] (MS_MGC_MSK): New macro.
[LINUX] (sys_mount): Update parser to match kernel behaviour:
discard MS_MGC_VAL magic, do not decode type and/or data
strings when specified flags do not imply valid strings.
* system.c [LINUX]: Define CTL_PROC, since Linux 2.6.18+ headers
removed CTL_PROC enum. Patch from Jakub Jelinek.
[LINUX] (sysctl_root): Add CTL_BUS, CTL_ABI and CTL_CPU.
* system.c [LINUX] (MS_MGC_VAL): New macro.
[LINUX] (mount_flags): Add it.
[LINUX] (sys_mount): If neither MS_BIND nor MS_MOVE bits are
set in the flags argument, try to fetch data string.
Fixes RH#165377.
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.
* system.c [LINUX] (MS_MANDLOCK, MS_NOATIME, MS_NODIRATIME, MS_BIND,
MS_MOVE, MS_REC, MS_VERBOSE, MS_POSIXACL, MS_ACTIVE, MS_NOUSER):
New macros.
[LINUX] (mount_flags): Add them.
[LINUX] (sys_mount): If any of (MS_BIND|MS_MOVE|MS_REMOUNT) bits are
set in the flags argument, don't try to fetch the filesystem string.
Fixes RH#141932.
Another bunch of patches from John Hughes merged:
signal.c:
+ SVR4 printcontext(): sigset_t != sigset_t*
+ getcontext returns a value, so print on exit of syscall
+ add UC_FP to ucontext_flags for OS writers that can't spell
+ sys_signal(): special case SIG_{ERR,DFL,IGN}
+ decode_subcall(): only do subcall range checking when needed
bunch of UnixWare updates
aclocal.m4, acconfig.h, configure.in: add test for long long type
with development kernels
bjm.c: sys_query_module: check if malloc succeeds
system.c: sys_cap[gs]et(): check if malloc succeeds, only malloc once
linux/syscallent.h: updated for 2.3.99pre3
linux/alpha/syscallent.h: updated for 2.3.99pre3, add all osf syscalls
even though Linux doesn't implement them
syscall.c: add global variables for MIPS registers as well
syscall.c: move global variables to before get_scno since that uses them
util.c: oops, misspelled defined
process.c: fix ptrace calls in change_syscall
mem.c: decode sys_madvise
Merge patch from Topi Miettinen <Topi.Miettinen@nic.fi>
+ add support for quotactl, fdatasync, mlock, mlockall, munlockall & acct
+ small fix for RLIMIT_* and RUSAGE_BOTH
+ enhace support for capget and capset
