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10 Commits

Author SHA1 Message Date
Dmitry V. Levin
6bc832e2bc Update copyright headers 
Headers updated automatically using maint/update_copyright_years.sh
script.
 2018-04-05 01:40:00 +00:00
Dmitry V. Levin
0b03de74bc build: prepare for -Wimplicit-fallthrough=5 
* gcc_compat.h (ATTRIBUTE_FALLTHROUGH): New macro.
* block.c (block_ioctl): Use it instead of "fall through" comment.
* btrfs.c (btrfs_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl): Likewise.
* rtc.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* dm.c (dm_decode_values): Likewise.
* process.c (SYS_FUNC(ptrace)): Likewise.
* quota.c (decode_cmd_data): Likewise.
* ucopy.c (umovestr): Likewise.
* unwind.c (unwind_print_stacktrace, unwind_capture_stacktrace)):
Likewise.
* term.c (term_ioctl): Add ATTRIBUTE_FALLTHROUGH.
* ioctl.c (ioctl_decode) [ALPHA || POWERPC]: Likewise.
* m4/st_warn_cflags.m4 (gl_WARN_ADD): Add -Wimplicit-fallthrough=5.
* tests/ioctl_v4l2.c (init_v4l2_format): Reorganize the switch statement
without implicit fallthrough.
 2018-03-06 23:52:08 +00:00
Eugene Syromyatnikov
7ead136575 ucopy: return string size in umovestr 
We return the size that includes \0 in order to preserve existing
behaviour (return 0 when \0 haven't been seen, return positive number
when it has been seen).

* ucopy.c (umovestr_peekdata, umovestr): Return string length
including \0 instead of 1 when \0 is found.
 2018-01-19 22:45:34 +00:00
Dmitry V. Levin
ce822389af ucopy: cleanup umoven_peekdata and umovestr_peekdata 
* ucopy.c (umoven_peekdata, umovestr_peekdata): Merge aligned
and unaligned tracee address cases.
 2017-07-31 18:25:00 +00:00
Dmitry V. Levin
9688f6a30d ucopy: move legacy fallbacks of umoven and umovestr to separate functions 
Move legacy PTRACE_PEEKDATA-based support to separate functions.

* ucopy.c (umoven_peekdata, umovestr_peekdata): New functions.
(umoven, umovestr): Use them.
 2017-07-31 18:25:00 +00:00
Dmitry V. Levin
5edeed4295 ucopy: move process_vm_readv ENOSYS check to vm_read_mem 
* ucopy.c (vm_read_mem): Set process_vm_readv_not_supported in case
of ENOSYS.
* ucopy.c (umoven, umovestr): Do not set process_vm_readv_not_supported.
 2017-07-31 18:21:56 +00:00
Dmitry V. Levin
5fe47894af ucopy: refactor the check for invalid tracee addresses 
* ucopy.c (tracee_addr_is_invalid): New function.
* ucopy.c (umoven, umovestr): Use it.
 2017-07-30 23:40:24 +00:00
Dmitry V. Levin
5f96feb9b7 ucopy: enhance vm_read_mem error diagnostics 
* ucopy.c (umoven, umovestr): Enhance vm_read_mem error diagnostics
to match PTRACE_PEEKDATA case.
 2017-07-30 23:28:12 +00:00
Dmitry V. Levin
ccba47d80a ucopy: skip redundant tracee address truncation check 
* ucopy.c (vm_read_mem): Skip raddr != truncated_raddr check
if these variables have the same data size.
 2017-07-29 23:27:52 +00:00
Dmitry V. Levin
429c08130b util: move umoven and umovestr to a separate file 
These functions are more kernel-specific compared to all other functions
defined in util.c.

* ucopy.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* util.c (umoven, umovestr): Move to ucopy.c.
 2017-07-28 10:24:35 +00:00