diff options
Diffstat (limited to 'contrib/cvs/lib/getdate.y')
| -rw-r--r-- | contrib/cvs/lib/getdate.y | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/contrib/cvs/lib/getdate.y b/contrib/cvs/lib/getdate.y index 578714267454..8ed565caacc4 100644 --- a/contrib/cvs/lib/getdate.y +++ b/contrib/cvs/lib/getdate.y @@ -96,9 +96,18 @@ struct timeb { #include <stdlib.h> #endif -#if defined (HAVE_ALLOCA_H) -#include <alloca.h> -#endif +/* NOTES on rebuilding getdate.c (particularly for inclusion in CVS + releases): + + We don't want to mess with all the portability hassles of alloca. + In particular, most (all?) versions of bison will use alloca in + their parser. If bison works on your system (e.g. it should work + with gcc), then go ahead and use it, but the more general solution + is to use byacc instead of bison, which should generate a portable + parser. I played with adding "#define alloca dont_use_alloca", to + give an error if the parser generator uses alloca (and thus detect + unportable getdate.c's), but that seems to cause as many problems + as it solves. */ extern struct tm *gmtime(); extern struct tm *localtime(); @@ -107,10 +116,6 @@ extern struct tm *localtime(); #define yylex getdate_yylex #define yyerror getdate_yyerror -#if !defined(lint) && !defined(SABER) -static char RCS[] = "$CVSid: @(#)getdate.y 1.11 94/09/21 $"; -#endif /* !defined(lint) && !defined(SABER) */ - static int yylex (); static int yyerror (); @@ -635,7 +640,9 @@ Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode) Year += 1900; DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 29 : 28; - if (Year < EPOCH || Year > 1999 + /* Checking for 2038 bogusly assumes that time_t is 32 bits. But + I'm too lazy to try to check for time_t overflow in another way. */ + if (Year < EPOCH || Year > 2038 || Month < 1 || Month > 12 /* Lint fluff: "conversion from long may lose accuracy" */ || Day < 1 || Day > DaysInMonth[(int)--Month]) |