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

[bison.git] / ChangeLog

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+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,