421 lines
9.8 KiB
C
421 lines
9.8 KiB
C
/*
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* Utility routines
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*
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* Copyright 1998 Bertho A. Stultiens
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* Copyright 2002 Ove Kaaven
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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#include "widl.h"
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#include "utils.h"
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#include "parser.h"
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#define CURRENT_LOCATION { input_name ? input_name : "stdin", line_number, parser_text }
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static const int want_near_indication = 0;
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static void make_print(char *str)
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{
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while(*str)
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{
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if(!isprint(*str))
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*str = ' ';
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str++;
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}
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}
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static void generic_msg(const loc_info_t *loc_info, const char *s, const char *t, va_list ap)
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{
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fprintf(stderr, "%s:%d: %s: ", loc_info->input_name, loc_info->line_number, t);
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vfprintf(stderr, s, ap);
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if (want_near_indication)
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{
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char *cpy;
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if(loc_info->near_text)
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{
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cpy = xstrdup(loc_info->near_text);
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make_print(cpy);
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fprintf(stderr, " near '%s'", cpy);
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free(cpy);
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}
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}
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}
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void error_loc(const char *s, ...)
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{
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loc_info_t cur_loc = CURRENT_LOCATION;
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va_list ap;
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va_start(ap, s);
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generic_msg(&cur_loc, s, "error", ap);
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va_end(ap);
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exit(1);
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}
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/* yyerror: yacc assumes this is not newline terminated. */
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void parser_error(const char *s)
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{
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error_loc("%s\n", s);
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}
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void error_loc_info(const loc_info_t *loc_info, const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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generic_msg(loc_info, s, "error", ap);
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va_end(ap);
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exit(1);
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}
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int parser_warning(const char *s, ...)
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{
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loc_info_t cur_loc = CURRENT_LOCATION;
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va_list ap;
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va_start(ap, s);
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generic_msg(&cur_loc, s, "warning", ap);
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va_end(ap);
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return 0;
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}
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void error(const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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fprintf(stderr, "error: ");
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vfprintf(stderr, s, ap);
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va_end(ap);
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exit(2);
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}
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void warning(const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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fprintf(stderr, "warning: ");
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vfprintf(stderr, s, ap);
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va_end(ap);
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}
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void warning_loc_info(const loc_info_t *loc_info, const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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generic_msg(loc_info, s, "warning", ap);
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va_end(ap);
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}
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void chat(const char *s, ...)
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{
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if(debuglevel & DEBUGLEVEL_CHAT)
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{
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va_list ap;
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va_start(ap, s);
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fprintf(stderr, "chat: ");
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vfprintf(stderr, s, ap);
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va_end(ap);
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}
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}
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size_t widl_getline(char **linep, size_t *lenp, FILE *fp)
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{
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char *line = *linep;
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size_t len = *lenp;
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size_t n = 0;
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if (!line)
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{
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len = 64;
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line = xmalloc(len);
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}
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while (fgets(&line[n], len - n, fp))
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{
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n += strlen(&line[n]);
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if (line[n - 1] == '\n')
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break;
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else if (n == len - 1)
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{
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len *= 2;
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line = xrealloc(line, len);
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}
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}
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*linep = line;
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*lenp = len;
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return n;
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}
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size_t strappend(char **buf, size_t *len, size_t pos, const char* fmt, ...)
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{
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size_t size;
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va_list ap;
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char *ptr;
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int n;
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assert( buf && len );
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assert( (*len == 0 && *buf == NULL) || (*len != 0 && *buf != NULL) );
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if (*buf)
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{
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size = *len;
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ptr = *buf;
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}
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else
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{
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size = 100;
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ptr = xmalloc( size );
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}
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for (;;)
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{
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va_start( ap, fmt );
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n = vsnprintf( ptr + pos, size - pos, fmt, ap );
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va_end( ap );
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if (n == -1) size *= 2;
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else if (pos + (size_t)n >= size) size = pos + n + 1;
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else break;
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ptr = xrealloc( ptr, size );
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}
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*len = size;
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*buf = ptr;
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return n;
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}
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/*******************************************************************
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* buffer management
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*
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* Function for writing to a memory buffer.
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*/
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int byte_swapped = 0;
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unsigned char *output_buffer;
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size_t output_buffer_pos;
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size_t output_buffer_size;
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static struct resource
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{
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unsigned char *data;
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size_t size;
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} resources[16];
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static unsigned int nb_resources;
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static void check_output_buffer_space( size_t size )
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{
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if (output_buffer_pos + size >= output_buffer_size)
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{
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output_buffer_size = max( output_buffer_size * 2, output_buffer_pos + size );
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output_buffer = xrealloc( output_buffer, output_buffer_size );
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}
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}
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void init_output_buffer(void)
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{
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output_buffer_size = 1024;
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output_buffer_pos = 0;
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output_buffer = xmalloc( output_buffer_size );
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}
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void flush_output_buffer( const char *name )
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{
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int fd = open( name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666 );
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if (fd == -1) error( "Error creating %s\n", name );
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if (write( fd, output_buffer, output_buffer_pos ) != output_buffer_pos)
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error( "Error writing to %s\n", name );
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close( fd );
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free( output_buffer );
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}
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static inline void put_resource_id( const char *str )
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{
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if (str[0] != '#')
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{
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while (*str)
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{
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unsigned char ch = *str++;
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put_word( toupper(ch) );
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}
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put_word( 0 );
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}
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else
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{
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put_word( 0xffff );
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put_word( atoi( str + 1 ));
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}
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}
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void add_output_to_resources( const char *type, const char *name )
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{
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size_t data_size = output_buffer_pos;
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size_t header_size = 5 * sizeof(unsigned int) + 2 * sizeof(unsigned short);
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assert( nb_resources < ARRAY_SIZE( resources ));
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if (type[0] != '#') header_size += (strlen( type ) + 1) * sizeof(unsigned short);
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else header_size += 2 * sizeof(unsigned short);
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if (name[0] != '#') header_size += (strlen( name ) + 1) * sizeof(unsigned short);
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else header_size += 2 * sizeof(unsigned short);
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header_size = (header_size + 3) & ~3;
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align_output( 4 );
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check_output_buffer_space( header_size );
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resources[nb_resources].size = header_size + output_buffer_pos;
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memmove( output_buffer + header_size, output_buffer, output_buffer_pos );
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output_buffer_pos = 0;
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put_dword( data_size ); /* ResSize */
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put_dword( header_size ); /* HeaderSize */
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put_resource_id( type ); /* ResType */
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put_resource_id( name ); /* ResName */
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align_output( 4 );
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put_dword( 0 ); /* DataVersion */
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put_word( 0 ); /* Memory options */
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put_word( 0 ); /* Language */
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put_dword( 0 ); /* Version */
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put_dword( 0 ); /* Characteristics */
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resources[nb_resources++].data = output_buffer;
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init_output_buffer();
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}
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void flush_output_resources( const char *name )
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{
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int fd;
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unsigned int i;
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/* all output must have been saved with add_output_to_resources() first */
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assert( !output_buffer_pos );
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put_dword( 0 ); /* ResSize */
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put_dword( 32 ); /* HeaderSize */
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put_word( 0xffff ); /* ResType */
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put_word( 0x0000 );
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put_word( 0xffff ); /* ResName */
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put_word( 0x0000 );
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put_dword( 0 ); /* DataVersion */
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put_word( 0 ); /* Memory options */
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put_word( 0 ); /* Language */
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put_dword( 0 ); /* Version */
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put_dword( 0 ); /* Characteristics */
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fd = open( name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666 );
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if (fd == -1) error( "Error creating %s\n", name );
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if (write( fd, output_buffer, output_buffer_pos ) != output_buffer_pos)
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error( "Error writing to %s\n", name );
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for (i = 0; i < nb_resources; i++)
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{
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if (write( fd, resources[i].data, resources[i].size ) != resources[i].size)
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error( "Error writing to %s\n", name );
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free( resources[i].data );
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}
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close( fd );
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nb_resources = 0;
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free( output_buffer );
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}
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void put_data( const void *data, size_t size )
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{
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check_output_buffer_space( size );
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memcpy( output_buffer + output_buffer_pos, data, size );
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output_buffer_pos += size;
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}
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void put_byte( unsigned char val )
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{
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check_output_buffer_space( 1 );
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output_buffer[output_buffer_pos++] = val;
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}
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void put_word( unsigned short val )
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{
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if (byte_swapped) val = (val << 8) | (val >> 8);
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put_data( &val, sizeof(val) );
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}
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void put_dword( unsigned int val )
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{
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if (byte_swapped)
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val = ((val << 24) | ((val << 8) & 0x00ff0000) | ((val >> 8) & 0x0000ff00) | (val >> 24));
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put_data( &val, sizeof(val) );
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}
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void put_qword( unsigned int val )
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{
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if (byte_swapped)
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{
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put_dword( 0 );
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put_dword( val );
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}
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else
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{
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put_dword( val );
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put_dword( 0 );
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}
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}
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/* pointer-sized word */
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void put_pword( unsigned int val )
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{
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if (pointer_size == 8) put_qword( val );
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else put_dword( val );
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}
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void put_str( int indent, const char *format, ... )
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{
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int n;
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va_list args;
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check_output_buffer_space( 4 * indent );
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memset( output_buffer + output_buffer_pos, ' ', 4 * indent );
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output_buffer_pos += 4 * indent;
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for (;;)
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{
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size_t size = output_buffer_size - output_buffer_pos;
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va_start( args, format );
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n = vsnprintf( (char *)output_buffer + output_buffer_pos, size, format, args );
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va_end( args );
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if (n == -1) size *= 2;
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else if ((size_t)n >= size) size = n + 1;
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else
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{
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output_buffer_pos += n;
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return;
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}
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check_output_buffer_space( size );
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}
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}
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void align_output( unsigned int align )
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{
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size_t size = align - (output_buffer_pos % align);
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if (size == align) return;
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check_output_buffer_space( size );
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memset( output_buffer + output_buffer_pos, 0, size );
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output_buffer_pos += size;
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}
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