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Do not create a temporary file, as that involves security and

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cleanup headaches.  Instead, use a pair of pipes.
Derived from a suggestion by Florian Krohm.

Also, some other minor changes to avoid GCC warnings.
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Paul Eggert
2002-10-20 06:37:08 +00:00
parent 975553805c
commit 95f2c9fe7d
1 changed files with 35 additions and 0 deletions
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@@ -1,3 +1,38 @@
2002-10-19 Paul Eggert <eggert@twinsun.com>
Do not create a temporary file, as that involves security and
cleanup headaches. Instead, use a pair of pipes.
Derived from a suggestion by Florian Krohm.
* lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
* lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
* configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
(BISON_PREREQ_SUBPIPE): Add.
* lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
Add subpipe.h, subpipe.c.
* m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
* po/POTFILES.in: Add lib/subpipe.c.
* src/output.c: Include "subpipe.h".
(m4_invoke): Remove decl.
(scan_skel): New decl.
(output_skeleton): Use pipe rather than temporary file for m4 input.
Check that m4sugar.m4 is readable, to avoid deadlock.
Check for pipe I/O error.
* src/scan-skel.l (readpipe): Remove decl.
(scan_skel): New function, to be used in place of m4_invoke.
Read from stream rather than file.
* lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
float, as this generates a warning on Solaris 8 + GCC 3.2 with
--enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
this generates a more-accurate value anyway.
* lib/timevar.c (timervar_accumulate): Rename locals to
avoid confusion with similarly-named more-global.
* src/muscle_tab.c (muscle_pair_list_grow): Likewise.
* src/output.c (prepare): Use xstrdup to convert char const *
to char *, to avoid GCC warning.
2002-10-19 Akim Demaille <akim@epita.fr>
* tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,