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* fcntl: use to simplify other modulesEric Blake2009-12-161-1/+2
| | | | | | | | | | | | | | | | | | | | | Let fcntl do the work, instead of copying code into other modules. * modules/cloexec (Depends-on): Add fcntl. * modules/fchdir (Depends-on): Likewise. * modules/fd-safer-flag (Depends-on): Likewise. * modules/unistd-safer (Depends-on): Likewise. * modules/dup3 (configure.ac): Set module indicator. * m4/fchdir.m4 (gl_FUNC_FCHDIR): Replace fcntl if fchdir is missing. * lib/fchdir.c (_gl_register_dup): Fix comment. * lib/cloexec.c (dup_cloexec): Simplify, by relying on fcntl. * lib/dup-safer.c (dup_safer): Likewise. * lib/dup-safer-flag.c (dup_safer_flag): Likewise. * lib/dup3.c (dup3): Likewise. * tests/test-fchdir.c (main): Enhance test. Fixes a dup_cloexec bug reported by Ondřej Vašík. Signed-off-by: Eric Blake <ebb9@byu.net>
* New module 'fd-safer-flag'.Bruno Haible2009-12-111-0/+26