[COMMIT] Fix a crash when (format "%f" 1.2e+302) is evaluated

APPROVE COMMIT NOTE: This patch has been committed. See Sebastian’s original patch here: http://www.sxemacs.org/list-archives/html/sxemacs-patches/2006-10/msg0000... and the SXEmacs bug here: http://issues.sxemacs.org/show_bug.cgi?id=18 for more details. Sebastian could use snprintf in his patch because SXEmacs only builds on Unix; while I would prefer to do the same, snprintf is not available in our Windows builds. Maybe we should integrate it when it’s not available. Thank you for the fix, Sebastian! src/ChangeLog addition: 2006-11-28 Aidan Kehoe <kehoea(a)parhasard.net&gt; * doprnt.c (emacs_doprnt_1): Integrate Sebastian Freundt's SXEmacs bug fix for cases where a format specifier overflows the allocated buffer with a float format string. XEmacs Trunk source patch: Diff command: cvs -q diff -u Files affected: src/doprnt.c =================================================================== RCS Index: src/doprnt.c =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/src/doprnt.c,v retrieving revision 1.30 diff -u -r1.30 doprnt.c --- src/doprnt.c 2005/01/24 23:33:50 1.30 +++ src/doprnt.c 2006/11/28 12:51:43 ＠＠ -776,16 +776,9 ＠＠ #endif /* HAVE_BIGFLOAT */ else { - /* ASCII Decimal representation uses 2.4 times as many - bits as machine binary. */ - char *text_to_print = - alloca_array (char, 32 + - max (spec->minwidth, - (int) max (sizeof (double), - sizeof (long)) * 3 + - max (spec->precision, 0))); - char constructed_spec[100]; - char *p = constructed_spec; + Ibyte *text_to_print = alloca_array (char, 350); + Ibyte constructed_spec[100]; + Ibyte *p = constructed_spec; /* Mostly reconstruct the spec and use sprintf() to format the string. */ -- Santa Maradona, priez pour moi! _______________________________________________ XEmacs-Patches mailing list XEmacs-Patches(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-patches