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view m4/inttypes.m4 @ 3398:1beac6d79e51
Merge 'exclude' changes from tar 1.13.22.
This fixes one or two unlikely storage allocation overflow bugs,
but doesn't change user-visible behavior otherwise.
(bool): Declare, perhaps by including stdbool.h.
(<sys/types.h>): Include only if HAVE_SYS_TYPES_H.
(<stdlib.h>, <string.h>, <strings.h>, <inttypes.h>, <stdint.h>):
Include if available.
(<xalloc.h>): Include
(SIZE_MAX): Define if <stdint.h> or <inttypes.h> doesn't.
(verify): New macro. Use it to verify that EXCLUDE macros do not
collide with FNM macros.
(struct patopts): New struct.
(struct exclude): Use it, as exclude patterns now come with options.
(new_exclude): Support above changes.
(new_exclude, add_exclude_file):
Initial size must now be a power of two to simplify overflow checking.
(free_exclude, fnmatch_no_wildcards): New function.
(excluded_filename): No longer requires options arg, as the options
are determined by add_exclude. Now returns bool, not int.
(excluded_filename, add_exclude):
Add support for the fancy new exclusion options.
(add_exclude, add_exclude_file): Now takes int options arg.
Check for arithmetic overflow when computing sizes.
(add_exclude_file): xrealloc might modify errno, so don't
realloc until after errno might be used.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Fri, 31 Aug 2001 06:33:42 +0000 |
| parents | b1734ebed89b |
| children | e39fe8eb7604 |
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#serial 6 dnl From Paul Eggert. AC_PREREQ(2.13) # Define HAVE_INTTYPES_H if <inttypes.h> exists, # doesn't clash with <sys/types.h>, and declares intmax_t and uintmax_t. AC_DEFUN([jm_AC_HEADER_INTTYPES_H], [ AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h, [AC_TRY_COMPILE( [#include <sys/types.h> #include <inttypes.h>], [intmax_t i = (intmax_t) -1; uintmax_t ui = (uintmax_t) -1;], jm_ac_cv_header_inttypes_h=yes, jm_ac_cv_header_inttypes_h=no)]) if test $jm_ac_cv_header_inttypes_h = yes; then AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, and declares intmax_t and uintmax_t.]) fi ]) # Define intmax_t to long or long long if <inttypes.h> doesn't define. AC_DEFUN([jm_AC_TYPE_INTMAX_T], [ AC_REQUIRE([jm_AC_HEADER_INTTYPES_H]) if test $jm_ac_cv_header_inttypes_h = no; then AC_REQUIRE([jm_AC_TYPE_LONG_LONG]) test $ac_cv_type_long_long = yes \ && ac_type='long long' \ || ac_type='long' AC_DEFINE_UNQUOTED(intmax_t, $ac_type, [Define to long or long long if <inttypes.h> doesn't define.]) fi ]) # Define uintmax_t to unsigned long or unsigned long long # if <inttypes.h> doesn't define. AC_DEFUN([jm_AC_TYPE_UINTMAX_T], [ AC_REQUIRE([jm_AC_HEADER_INTTYPES_H]) if test $jm_ac_cv_header_inttypes_h = no; then AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG]) test $ac_cv_type_unsigned_long_long = yes \ && ac_type='unsigned long long' \ || ac_type='unsigned long' AC_DEFINE_UNQUOTED(uintmax_t, $ac_type, [Define to unsigned long or unsigned long long if <inttypes.h> doesn't define.]) fi ])