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0f6df2eee0
(long_options): Add "debug" and "linker". (main): Handle -d and -l arguments. Make command line input and output files optional. Parse the command file before opening the BFD's, which requires storing more information in local variables. If INPUT names multiple files, link them together. Use OUTPUT for the output file name if not named on command line. (show_usage): Changed for new options. (link_inputs): New function to automatically invoke linker to handle multiple INPUT files. (choose_temp_base_try, choose_temp_base, pexecute): New functions, mostly copied from gcc/gcc.c. * nlmconv.h (input_files, output_file): Declare. * nlmheader.y (input_files, output_file): Define. (command): Support INPUT with a string_list argument. Support OUTPUT. (string_list): Renamed from module_list. * Makefile.in (nlmconv.o): Define LD_NAME based on program_transform_name. Fixes PR 3974.
968 lines
21 KiB
Plaintext
968 lines
21 KiB
Plaintext
%{/* nlmheader.y - parse NLM header specification keywords.
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Copyright (C) 1993 Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Written by Ian Lance Taylor <ian@cygnus.com>.
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This bison file parses the commands recognized by the NetWare NLM
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linker, except for lists of object files. It stores the
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information in global variables.
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This implementation is based on the description in the NetWare Tool
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Maker Specification manual, edition 1.0. */
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#include <ansidecl.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <bfd.h>
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#include "sysdep.h"
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#include "bucomm.h"
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#include "nlm/common.h"
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#include "nlm/internal.h"
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#include "nlmconv.h"
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/* Information is stored in the structures pointed to by these
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variables. */
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Nlm_Internal_Fixed_Header *fixed_hdr;
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Nlm_Internal_Variable_Header *var_hdr;
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Nlm_Internal_Version_Header *version_hdr;
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Nlm_Internal_Copyright_Header *copyright_hdr;
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Nlm_Internal_Extended_Header *extended_hdr;
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/* Procedure named by CHECK. */
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char *check_procedure;
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/* File named by CUSTOM. */
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char *custom_file;
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/* Whether to generate debugging information (DEBUG). */
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boolean debug_info;
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/* Procedure named by EXIT. */
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char *exit_procedure;
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/* Exported symbols (EXPORT). */
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struct string_list *export_symbols;
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/* List of files from INPUT. */
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struct string_list *input_files;
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/* Map file name (MAP, FULLMAP). */
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char *map_file;
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/* Whether a full map has been requested (FULLMAP). */
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boolean full_map;
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/* File named by HELP. */
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char *help_file;
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/* Imported symbols (IMPORT). */
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struct string_list *import_symbols;
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/* File named by MESSAGES. */
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char *message_file;
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/* Autoload module list (MODULE). */
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struct string_list *modules;
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/* File named by OUTPUT. */
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char *output_file;
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/* File named by SHARELIB. */
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char *sharelib_file;
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/* Start procedure name (START). */
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char *start_procedure;
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/* VERBOSE. */
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boolean verbose;
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/* RPC description file (XDCDATA). */
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char *rpc_file;
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/* The number of serious errors that have occurred. */
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int parse_errors;
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/* The current symbol prefix when reading a list of import or export
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symbols. */
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static char *symbol_prefix;
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/* Parser error message handler. */
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#define yyerror(msg) nlmheader_error (msg);
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/* Local functions. */
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static int yylex PARAMS ((void));
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static void nlmlex_file_push PARAMS ((const char *));
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static boolean nlmlex_file_open PARAMS ((const char *));
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static int nlmlex_buf_init PARAMS ((void));
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static char nlmlex_buf_add PARAMS ((int));
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static long nlmlex_get_number PARAMS ((const char *));
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static void nlmheader_identify PARAMS ((void));
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static void nlmheader_warn PARAMS ((const char *, int));
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static void nlmheader_error PARAMS ((const char *));
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static struct string_list * string_list_cons PARAMS ((char *,
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struct string_list *));
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static struct string_list * string_list_append PARAMS ((struct string_list *,
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struct string_list *));
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static struct string_list * string_list_append1 PARAMS ((struct string_list *,
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char *));
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static char *xstrdup PARAMS ((const char *));
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%}
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%union
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{
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char *string;
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struct string_list *list;
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};
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/* The reserved words. */
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%token CHECK CODESTART COPYRIGHT CUSTOM DATE DEBUG DESCRIPTION EXIT
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%token EXPORT FLAG_ON FLAG_OFF FULLMAP HELP IMPORT INPUT MAP MESSAGES
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%token MODULE MULTIPLE OS_DOMAIN OUTPUT PSEUDOPREEMPTION REENTRANT
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%token SCREENNAME SHARELIB STACK STACKSIZE START SYNCHRONIZE
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%token THREADNAME TYPE VERBOSE VERSION XDCDATA
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/* Arguments. */
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%token <string> STRING
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%token <string> QUOTED_STRING
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/* Typed non-terminals. */
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%type <list> symbol_list_opt symbol_list string_list
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%type <string> symbol
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%%
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/* Keywords must start in the leftmost column of the file. Arguments
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may appear anywhere else. The lexer uses this to determine what
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token to return, so we don't have to worry about it here. */
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/* The entire file is just a list of commands. */
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file:
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commands
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;
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/* A possibly empty list of commands. */
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commands:
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/* May be empty. */
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| command commands
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;
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/* A single command. There is where most of the work takes place. */
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command:
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CHECK STRING
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{
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check_procedure = $2;
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}
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| CODESTART STRING
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{
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nlmheader_warn ("CODESTART is not implemented; sorry", -1);
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free ($2);
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}
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| COPYRIGHT QUOTED_STRING
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{
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int len;
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strncpy (copyright_hdr->stamp, "CoPyRiGhT=", 10);
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len = strlen ($2);
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if (len >= NLM_MAX_COPYRIGHT_MESSAGE_LENGTH)
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{
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nlmheader_warn ("copyright string is too long",
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NLM_MAX_COPYRIGHT_MESSAGE_LENGTH - 1);
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len = NLM_MAX_COPYRIGHT_MESSAGE_LENGTH - 1;
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}
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copyright_hdr->copyrightMessageLength = len;
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strncpy (copyright_hdr->copyrightMessage, $2, len);
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copyright_hdr->copyrightMessage[len] = '\0';
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free ($2);
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}
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| CUSTOM STRING
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{
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custom_file = $2;
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}
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| DATE STRING STRING STRING
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{
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/* We don't set the version stamp here, because we use the
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version stamp to detect whether the required VERSION
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keyword was given. */
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version_hdr->month = nlmlex_get_number ($2);
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version_hdr->day = nlmlex_get_number ($3);
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version_hdr->year = nlmlex_get_number ($4);
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free ($2);
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free ($3);
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free ($4);
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}
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| DEBUG
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{
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debug_info = true;
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}
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| DESCRIPTION QUOTED_STRING
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{
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int len;
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len = strlen ($2);
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if (len > NLM_MAX_DESCRIPTION_LENGTH)
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{
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nlmheader_warn ("description string is too long",
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NLM_MAX_DESCRIPTION_LENGTH);
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len = NLM_MAX_DESCRIPTION_LENGTH;
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}
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var_hdr->descriptionLength = len;
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strncpy (var_hdr->descriptionText, $2, len);
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var_hdr->descriptionText[len] = '\0';
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free ($2);
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}
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| EXIT STRING
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{
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exit_procedure = $2;
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}
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| EXPORT
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{
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symbol_prefix = NULL;
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}
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symbol_list_opt
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{
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export_symbols = string_list_append (export_symbols, $3);
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}
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| FLAG_ON STRING
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{
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fixed_hdr->flags |= nlmlex_get_number ($2);
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free ($2);
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}
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| FLAG_OFF STRING
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{
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fixed_hdr->flags &=~ nlmlex_get_number ($2);
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free ($2);
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}
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| FULLMAP STRING
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{
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map_file = $2;
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full_map = true;
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}
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| HELP STRING
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{
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help_file = $2;
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}
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| IMPORT
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{
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symbol_prefix = NULL;
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}
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symbol_list_opt
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{
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import_symbols = string_list_append (import_symbols, $3);
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}
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| INPUT string_list
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{
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input_files = string_list_append (input_files, $2);
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}
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| MAP STRING
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{
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map_file = $2;
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}
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| MESSAGES STRING
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{
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message_file = $2;
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}
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| MODULE string_list
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{
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modules = string_list_append (modules, $2);
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}
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| MULTIPLE
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{
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fixed_hdr->flags |= 0x2;
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}
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| OS_DOMAIN
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{
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fixed_hdr->flags |= 0x10;
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}
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| OUTPUT STRING
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{
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if (output_file == NULL)
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output_file = $2;
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else
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nlmheader_warn ("ignoring duplicate OUTPUT statement", -1);
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}
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| PSEUDOPREEMPTION
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{
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fixed_hdr->flags |= 0x8;
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}
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| REENTRANT
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{
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fixed_hdr->flags |= 0x1;
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}
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| SCREENNAME QUOTED_STRING
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{
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int len;
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len = strlen ($2);
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if (len >= NLM_MAX_SCREEN_NAME_LENGTH)
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{
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nlmheader_warn ("screen name is too long",
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NLM_MAX_SCREEN_NAME_LENGTH);
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len = NLM_MAX_SCREEN_NAME_LENGTH;
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}
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var_hdr->screenNameLength = len;
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strncpy (var_hdr->screenName, $2, len);
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var_hdr->screenName[NLM_MAX_SCREEN_NAME_LENGTH] = '\0';
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free ($2);
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}
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| SHARELIB STRING
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{
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sharelib_file = $2;
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}
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| STACK STRING
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{
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var_hdr->stackSize = nlmlex_get_number ($2);
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free ($2);
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}
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| STACKSIZE STRING
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{
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var_hdr->stackSize = nlmlex_get_number ($2);
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free ($2);
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}
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| START STRING
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{
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start_procedure = $2;
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}
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| SYNCHRONIZE
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{
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fixed_hdr->flags |= 0x4;
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}
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| THREADNAME QUOTED_STRING
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{
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int len;
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len = strlen ($2);
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if (len >= NLM_MAX_THREAD_NAME_LENGTH)
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{
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nlmheader_warn ("thread name is too long",
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NLM_MAX_THREAD_NAME_LENGTH);
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len = NLM_MAX_THREAD_NAME_LENGTH;
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}
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var_hdr->threadNameLength = len;
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strncpy (var_hdr->threadName, $2, len);
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var_hdr->screenName[NLM_MAX_THREAD_NAME_LENGTH] = '\0';
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free ($2);
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}
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| TYPE STRING
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{
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fixed_hdr->moduleType = nlmlex_get_number ($2);
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free ($2);
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}
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| VERBOSE
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{
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verbose = true;
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}
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| VERSION STRING STRING STRING
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{
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long val;
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strncpy (version_hdr->stamp, "VeRsIoN#", 8);
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version_hdr->majorVersion = nlmlex_get_number ($2);
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val = nlmlex_get_number ($3);
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if (val < 0 || val > 99)
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nlmheader_warn ("illegal minor version number (must be between 0 and 99)",
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-1);
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else
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version_hdr->minorVersion = val;
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val = nlmlex_get_number ($4);
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if (val < 1 || val > 26)
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nlmheader_warn ("illegal revision number (must be between 1 and 26)",
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-1);
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else
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version_hdr->revision = val;
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free ($2);
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free ($3);
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free ($4);
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}
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| VERSION STRING STRING
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{
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long val;
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strncpy (version_hdr->stamp, "VeRsIoN#", 8);
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version_hdr->majorVersion = nlmlex_get_number ($2);
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val = nlmlex_get_number ($3);
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if (val < 0 || val > 99)
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nlmheader_warn ("illegal minor version number (must be between 0 and 99)",
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-1);
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else
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version_hdr->minorVersion = val;
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version_hdr->revision = 0;
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free ($2);
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free ($3);
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}
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| XDCDATA STRING
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{
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rpc_file = $2;
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}
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;
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/* A possibly empty list of symbols. */
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symbol_list_opt:
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/* Empty. */
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{
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$$ = NULL;
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}
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| symbol_list
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{
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$$ = $1;
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}
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;
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/* A list of symbols in an import or export list. Prefixes may appear
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in parentheses. We need to use left recursion here to avoid
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building up a large import list on the parser stack. */
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symbol_list:
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symbol
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{
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$$ = string_list_cons ($1, NULL);
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}
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| symbol_prefix
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{
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$$ = NULL;
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}
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| symbol_list symbol
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{
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$$ = string_list_append1 ($1, $2);
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}
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| symbol_list symbol_prefix
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{
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$$ = $1;
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}
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;
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/* A prefix for subsequent symbols. */
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symbol_prefix:
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'(' STRING ')'
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{
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if (symbol_prefix != NULL)
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free (symbol_prefix);
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symbol_prefix = $2;
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}
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;
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/* A single symbol. */
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symbol:
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STRING
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{
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if (symbol_prefix == NULL)
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$$ = $1;
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else
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{
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$$ = xmalloc (strlen (symbol_prefix) + strlen ($1) + 2);
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sprintf ($$, "%s@%s", symbol_prefix, $1);
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free ($1);
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}
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}
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;
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/* A list of strings. */
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string_list:
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/* May be empty. */
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{
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$$ = NULL;
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}
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| STRING string_list
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{
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$$ = string_list_cons ($1, $2);
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}
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;
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%%
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/* If strerror is just a macro, we want to use the one from libiberty
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since it will handle undefined values. */
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#undef strerror
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extern char *strerror ();
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/* The lexer is simple, too simple for flex. Keywords are only
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recognized at the start of lines. Everything else must be an
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argument. A comma is treated as whitespace. */
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/* The states the lexer can be in. */
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enum lex_state
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{
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/* At the beginning of a line. */
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BEGINNING_OF_LINE,
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/* In the middle of a line. */
|
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IN_LINE
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};
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/* We need to keep a stack of files to handle file inclusion. */
|
||
|
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struct input
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{
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/* The file to read from. */
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FILE *file;
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/* The name of the file. */
|
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char *name;
|
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/* The current line number. */
|
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int lineno;
|
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/* The current state. */
|
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enum lex_state state;
|
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/* The next file on the stack. */
|
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struct input *next;
|
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};
|
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|
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/* The current input file. */
|
||
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static struct input current;
|
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/* The character which introduces comments. */
|
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#define COMMENT_CHAR '#'
|
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|
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/* Start the lexer going on the main input file. */
|
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|
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boolean
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nlmlex_file (name)
|
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const char *name;
|
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{
|
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current.next = NULL;
|
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return nlmlex_file_open (name);
|
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}
|
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/* Start the lexer going on a subsidiary input file. */
|
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static void
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nlmlex_file_push (name)
|
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const char *name;
|
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{
|
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struct input *push;
|
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push = (struct input *) xmalloc (sizeof (struct input));
|
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*push = current;
|
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if (nlmlex_file_open (name))
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current.next = push;
|
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else
|
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{
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current = *push;
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free (push);
|
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}
|
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}
|
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/* Start lexing from a file. */
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static boolean
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nlmlex_file_open (name)
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const char *name;
|
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{
|
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current.file = fopen (name, "r");
|
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if (current.file == NULL)
|
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{
|
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fprintf (stderr, "%s:%s: %s\n", program_name, name, strerror (errno));
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++parse_errors;
|
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return false;
|
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}
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current.name = xstrdup (name);
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||
current.lineno = 1;
|
||
current.state = BEGINNING_OF_LINE;
|
||
return true;
|
||
}
|
||
|
||
/* Table used to turn keywords into tokens. */
|
||
|
||
struct keyword_tokens_struct
|
||
{
|
||
const char *keyword;
|
||
int token;
|
||
};
|
||
|
||
struct keyword_tokens_struct keyword_tokens[] =
|
||
{
|
||
{ "CHECK", CHECK },
|
||
{ "CODESTART", CODESTART },
|
||
{ "COPYRIGHT", COPYRIGHT },
|
||
{ "CUSTOM", CUSTOM },
|
||
{ "DATE", DATE },
|
||
{ "DEBUG", DEBUG },
|
||
{ "DESCRIPTION", DESCRIPTION },
|
||
{ "EXIT", EXIT },
|
||
{ "EXPORT", EXPORT },
|
||
{ "FLAG_ON", FLAG_ON },
|
||
{ "FLAG_OFF", FLAG_OFF },
|
||
{ "FULLMAP", FULLMAP },
|
||
{ "HELP", HELP },
|
||
{ "IMPORT", IMPORT },
|
||
{ "INPUT", INPUT },
|
||
{ "MAP", MAP },
|
||
{ "MESSAGES", MESSAGES },
|
||
{ "MODULE", MODULE },
|
||
{ "MULTIPLE", MULTIPLE },
|
||
{ "OS_DOMAIN", OS_DOMAIN },
|
||
{ "OUTPUT", OUTPUT },
|
||
{ "PSEUDOPREEMPTION", PSEUDOPREEMPTION },
|
||
{ "REENTRANT", REENTRANT },
|
||
{ "SCREENNAME", SCREENNAME },
|
||
{ "SHARELIB", SHARELIB },
|
||
{ "STACK", STACK },
|
||
{ "STACKSIZE", STACKSIZE },
|
||
{ "START", START },
|
||
{ "SYNCHRONIZE", SYNCHRONIZE },
|
||
{ "THREADNAME", THREADNAME },
|
||
{ "TYPE", TYPE },
|
||
{ "VERBOSE", VERBOSE },
|
||
{ "VERSION", VERSION },
|
||
{ "XDCDATA", XDCDATA }
|
||
};
|
||
|
||
#define KEYWORD_COUNT (sizeof (keyword_tokens) / sizeof (keyword_tokens[0]))
|
||
|
||
/* The lexer accumulates strings in these variables. */
|
||
static char *lex_buf;
|
||
static int lex_size;
|
||
static int lex_pos;
|
||
|
||
/* Start accumulating strings into the buffer. */
|
||
#define BUF_INIT() \
|
||
((void) (lex_buf != NULL ? lex_pos = 0 : nlmlex_buf_init ()))
|
||
|
||
static int
|
||
nlmlex_buf_init ()
|
||
{
|
||
lex_size = 10;
|
||
lex_buf = xmalloc (lex_size + 1);
|
||
lex_pos = 0;
|
||
return 0;
|
||
}
|
||
|
||
/* Finish a string in the buffer. */
|
||
#define BUF_FINISH() ((void) (lex_buf[lex_pos] = '\0'))
|
||
|
||
/* Accumulate a character into the buffer. */
|
||
#define BUF_ADD(c) \
|
||
((void) (lex_pos < lex_size \
|
||
? lex_buf[lex_pos++] = (c) \
|
||
: nlmlex_buf_add (c)))
|
||
|
||
static char
|
||
nlmlex_buf_add (c)
|
||
int c;
|
||
{
|
||
if (lex_pos >= lex_size)
|
||
{
|
||
lex_size *= 2;
|
||
lex_buf = xrealloc (lex_buf, lex_size + 1);
|
||
}
|
||
|
||
return lex_buf[lex_pos++] = c;
|
||
}
|
||
|
||
/* The lexer proper. This is called by the bison generated parsing
|
||
code. */
|
||
|
||
static int
|
||
yylex ()
|
||
{
|
||
int c;
|
||
|
||
tail_recurse:
|
||
|
||
c = getc (current.file);
|
||
|
||
/* Commas are treated as whitespace characters. */
|
||
while (isspace ((unsigned char) c) || c == ',')
|
||
{
|
||
current.state = IN_LINE;
|
||
if (c == '\n')
|
||
{
|
||
++current.lineno;
|
||
current.state = BEGINNING_OF_LINE;
|
||
}
|
||
c = getc (current.file);
|
||
}
|
||
|
||
/* At the end of the file we either pop to the previous file or
|
||
finish up. */
|
||
if (c == EOF)
|
||
{
|
||
fclose (current.file);
|
||
free (current.name);
|
||
if (current.next == NULL)
|
||
return 0;
|
||
else
|
||
{
|
||
struct input *next;
|
||
|
||
next = current.next;
|
||
current = *next;
|
||
free (next);
|
||
goto tail_recurse;
|
||
}
|
||
}
|
||
|
||
/* A comment character always means to drop everything until the
|
||
next newline. */
|
||
if (c == COMMENT_CHAR)
|
||
{
|
||
do
|
||
{
|
||
c = getc (current.file);
|
||
}
|
||
while (c != '\n');
|
||
++current.lineno;
|
||
current.state = BEGINNING_OF_LINE;
|
||
goto tail_recurse;
|
||
}
|
||
|
||
/* An '@' introduces an include file. */
|
||
if (c == '@')
|
||
{
|
||
do
|
||
{
|
||
c = getc (current.file);
|
||
if (c == '\n')
|
||
++current.lineno;
|
||
}
|
||
while (isspace ((unsigned char) c));
|
||
BUF_INIT ();
|
||
while (! isspace ((unsigned char) c) && c != EOF)
|
||
{
|
||
BUF_ADD (c);
|
||
c = getc (current.file);
|
||
}
|
||
BUF_FINISH ();
|
||
|
||
ungetc (c, current.file);
|
||
|
||
nlmlex_file_push (lex_buf);
|
||
goto tail_recurse;
|
||
}
|
||
|
||
/* A non-space character at the start of a line must be the start of
|
||
a keyword. */
|
||
if (current.state == BEGINNING_OF_LINE)
|
||
{
|
||
BUF_INIT ();
|
||
while (isalnum ((unsigned char) c) || c == '_')
|
||
{
|
||
if (islower ((unsigned char) c))
|
||
BUF_ADD (toupper ((unsigned char) c));
|
||
else
|
||
BUF_ADD (c);
|
||
c = getc (current.file);
|
||
}
|
||
BUF_FINISH ();
|
||
|
||
if (c != EOF && ! isspace ((unsigned char) c) && c != ',')
|
||
{
|
||
nlmheader_identify ();
|
||
fprintf (stderr, "%s:%d: illegal character in keyword: %c\n",
|
||
current.name, current.lineno, c);
|
||
}
|
||
else
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < KEYWORD_COUNT; i++)
|
||
{
|
||
if (lex_buf[0] == keyword_tokens[i].keyword[0]
|
||
&& strcmp (lex_buf, keyword_tokens[i].keyword) == 0)
|
||
{
|
||
/* Pushing back the final whitespace avoids worrying
|
||
about \n here. */
|
||
ungetc (c, current.file);
|
||
current.state = IN_LINE;
|
||
return keyword_tokens[i].token;
|
||
}
|
||
}
|
||
|
||
nlmheader_identify ();
|
||
fprintf (stderr, "%s:%d: unrecognized keyword: %s\n",
|
||
current.name, current.lineno, lex_buf);
|
||
}
|
||
|
||
++parse_errors;
|
||
/* Treat the rest of this line as a comment. */
|
||
ungetc (COMMENT_CHAR, current.file);
|
||
goto tail_recurse;
|
||
}
|
||
|
||
/* Parentheses just represent themselves. */
|
||
if (c == '(' || c == ')')
|
||
return c;
|
||
|
||
/* Handle quoted strings. */
|
||
if (c == '"' || c == '\'')
|
||
{
|
||
int quote;
|
||
int start_lineno;
|
||
|
||
quote = c;
|
||
start_lineno = current.lineno;
|
||
|
||
c = getc (current.file);
|
||
BUF_INIT ();
|
||
while (c != quote && c != EOF)
|
||
{
|
||
BUF_ADD (c);
|
||
if (c == '\n')
|
||
++current.lineno;
|
||
c = getc (current.file);
|
||
}
|
||
BUF_FINISH ();
|
||
|
||
if (c == EOF)
|
||
{
|
||
nlmheader_identify ();
|
||
fprintf (stderr, "%s:%d: end of file in quoted string\n",
|
||
current.name, start_lineno);
|
||
++parse_errors;
|
||
}
|
||
|
||
/* FIXME: Possible memory leak. */
|
||
yylval.string = xstrdup (lex_buf);
|
||
return QUOTED_STRING;
|
||
}
|
||
|
||
/* Gather a generic argument. */
|
||
BUF_INIT ();
|
||
while (! isspace (c)
|
||
&& c != ','
|
||
&& c != COMMENT_CHAR
|
||
&& c != '('
|
||
&& c != ')')
|
||
{
|
||
BUF_ADD (c);
|
||
c = getc (current.file);
|
||
}
|
||
BUF_FINISH ();
|
||
|
||
ungetc (c, current.file);
|
||
|
||
/* FIXME: Possible memory leak. */
|
||
yylval.string = xstrdup (lex_buf);
|
||
return STRING;
|
||
}
|
||
|
||
/* Get a number from a string. */
|
||
|
||
static long
|
||
nlmlex_get_number (s)
|
||
const char *s;
|
||
{
|
||
long ret;
|
||
char *send;
|
||
|
||
ret = strtol (s, &send, 10);
|
||
if (*send != '\0')
|
||
nlmheader_warn ("bad number", -1);
|
||
return ret;
|
||
}
|
||
|
||
/* Prefix the nlmconv warnings with a note as to where they come from.
|
||
We don't use program_name on every warning, because then some
|
||
versions of the emacs next-error function can't recognize the line
|
||
number. */
|
||
|
||
static void
|
||
nlmheader_identify ()
|
||
{
|
||
static int done;
|
||
|
||
if (! done)
|
||
{
|
||
fprintf (stderr, "%s: problems in NLM command language input:\n",
|
||
program_name);
|
||
done = 1;
|
||
}
|
||
}
|
||
|
||
/* Issue a warning. */
|
||
|
||
static void
|
||
nlmheader_warn (s, imax)
|
||
const char *s;
|
||
int imax;
|
||
{
|
||
nlmheader_identify ();
|
||
fprintf (stderr, "%s:%d: %s", current.name, current.lineno, s);
|
||
if (imax != -1)
|
||
fprintf (stderr, " (max %d)", imax);
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
/* Report an error. */
|
||
|
||
static void
|
||
nlmheader_error (s)
|
||
const char *s;
|
||
{
|
||
nlmheader_warn (s, -1);
|
||
++parse_errors;
|
||
}
|
||
|
||
/* Add a string to a string list. */
|
||
|
||
static struct string_list *
|
||
string_list_cons (s, l)
|
||
char *s;
|
||
struct string_list *l;
|
||
{
|
||
struct string_list *ret;
|
||
|
||
ret = (struct string_list *) xmalloc (sizeof (struct string_list));
|
||
ret->next = l;
|
||
ret->string = s;
|
||
return ret;
|
||
}
|
||
|
||
/* Append a string list to another string list. */
|
||
|
||
static struct string_list *
|
||
string_list_append (l1, l2)
|
||
struct string_list *l1;
|
||
struct string_list *l2;
|
||
{
|
||
register struct string_list **pp;
|
||
|
||
for (pp = &l1; *pp != NULL; pp = &(*pp)->next)
|
||
;
|
||
*pp = l2;
|
||
return l1;
|
||
}
|
||
|
||
/* Append a string to a string list. */
|
||
|
||
static struct string_list *
|
||
string_list_append1 (l, s)
|
||
struct string_list *l;
|
||
char *s;
|
||
{
|
||
struct string_list *n;
|
||
register struct string_list **pp;
|
||
|
||
n = (struct string_list *) xmalloc (sizeof (struct string_list));
|
||
n->next = NULL;
|
||
n->string = s;
|
||
for (pp = &l; *pp != NULL; pp = &(*pp)->next)
|
||
;
|
||
*pp = n;
|
||
return l;
|
||
}
|
||
|
||
/* Duplicate a string in memory. */
|
||
|
||
static char *
|
||
xstrdup (s)
|
||
const char *s;
|
||
{
|
||
unsigned long len;
|
||
char *ret;
|
||
|
||
len = strlen (s);
|
||
ret = xmalloc (len + 1);
|
||
strcpy (ret, s);
|
||
return ret;
|
||
}
|