diff options
| -rw-r--r-- | usr.bin/yacc/main.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/usr.bin/yacc/main.c b/usr.bin/yacc/main.c index 3ced574d390..5f0b65d107e 100644 --- a/usr.bin/yacc/main.c +++ b/usr.bin/yacc/main.c @@ -1,4 +1,4 @@ -/* $OpenBSD: main.c,v 1.7 1997/04/04 18:41:38 deraadt Exp $ */ +/* $OpenBSD: main.c,v 1.8 1997/11/05 09:36:22 deraadt Exp $ */ /* $NetBSD: main.c,v 1.5 1996/03/19 03:21:38 jtc Exp $ */ /* @@ -47,7 +47,7 @@ char copyright[] = #if 0 static char sccsid[] = "@(#)main.c 5.5 (Berkeley) 5/24/93"; #else -static char rcsid[] = "$OpenBSD: main.c,v 1.7 1997/04/04 18:41:38 deraadt Exp $"; +static char rcsid[] = "$OpenBSD: main.c,v 1.8 1997/11/05 09:36:22 deraadt Exp $"; #endif #endif /* not lint */ @@ -358,12 +358,33 @@ create_file_names() { if (explicit_file_name) { - defines_file_name = MALLOC(strlen(output_file_name)); + char *suffix; + + defines_file_name = MALLOC(strlen(output_file_name)+1); if (defines_file_name == 0) no_space(); strcpy(defines_file_name, output_file_name); - if (!strcmp(output_file_name + (strlen(output_file_name)-2), ".c")) - defines_file_name [strlen(output_file_name)-1] = 'h'; + + /* does the output_file_name have a known suffix */ + if ((suffix = strrchr(output_file_name, '.')) != 0 && + (!strcmp(suffix, ".c") || /* good, old-fashioned C */ + !strcmp(suffix, ".C") || /* C++, or C on Windows */ + !strcmp(suffix, ".cc") || /* C++ */ + !strcmp(suffix, ".cxx") || /* C++ */ + !strcmp(suffix, ".cpp"))) /* C++ (Windows) */ + { + strncpy(defines_file_name, output_file_name, + suffix - output_file_name + 1); + defines_file_name[suffix - output_file_name + 1] = 'h'; + defines_file_name[suffix - output_file_name + 2] = '\0'; + } else { + fprintf(stderr,"%s: suffix of output file name %s" + " not recognized, no -d file generated.\n", + myname, output_file_name); + dflag = 0; + free(defines_file_name); + defines_file_name = 0; + } } else { |