/* * Utility routines * * Copyright 1998 Bertho A. Stultiens * Copyright 2002 Ove Kaaven * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include <assert.h> #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #include <string.h> #include <ctype.h> #include "widl.h" #include "utils.h" #include "parser.h" #define CURRENT_LOCATION { input_name ? input_name : "stdin", line_number, parser_text } static const int want_near_indication = 0; static void make_print(char *str) { while(*str) { if(!isprint(*str)) *str = ' '; str++; } } static void generic_msg(const loc_info_t *loc_info, const char *s, const char *t, va_list ap) { fprintf(stderr, "%s:%d: %s: ", loc_info->input_name, loc_info->line_number, t); vfprintf(stderr, s, ap); if (want_near_indication) { char *cpy; if(loc_info->near_text) { cpy = xstrdup(loc_info->near_text); make_print(cpy); fprintf(stderr, " near '%s'", cpy); free(cpy); } } } void error_loc(const char *s, ...) { loc_info_t cur_loc = CURRENT_LOCATION; va_list ap; va_start(ap, s); generic_msg(&cur_loc, s, "error", ap); va_end(ap); exit(1); } /* yyerror: yacc assumes this is not newline terminated. */ void parser_error(const char *s) { error_loc("%s\n", s); } void error_loc_info(const loc_info_t *loc_info, const char *s, ...) { va_list ap; va_start(ap, s); generic_msg(loc_info, s, "error", ap); va_end(ap); exit(1); } int parser_warning(const char *s, ...) { loc_info_t cur_loc = CURRENT_LOCATION; va_list ap; va_start(ap, s); generic_msg(&cur_loc, s, "warning", ap); va_end(ap); return 0; } void error(const char *s, ...) { va_list ap; va_start(ap, s); fprintf(stderr, "error: "); vfprintf(stderr, s, ap); va_end(ap); exit(2); } void warning(const char *s, ...) { va_list ap; va_start(ap, s); fprintf(stderr, "warning: "); vfprintf(stderr, s, ap); va_end(ap); } void warning_loc_info(const loc_info_t *loc_info, const char *s, ...) { va_list ap; va_start(ap, s); generic_msg(loc_info, s, "warning", ap); va_end(ap); } void chat(const char *s, ...) { if(debuglevel & DEBUGLEVEL_CHAT) { va_list ap; va_start(ap, s); fprintf(stderr, "chat: "); vfprintf(stderr, s, ap); va_end(ap); } } char *dup_basename(const char *name, const char *ext) { int namelen; int extlen = strlen(ext); char *base; char *slash; if(!name) name = "widl.tab"; slash = strrchr(name, '/'); if (!slash) slash = strrchr(name, '\\'); if (slash) name = slash + 1; namelen = strlen(name); /* +4 for later extension and +1 for '\0' */ base = xmalloc(namelen +4 +1); strcpy(base, name); if(!strcasecmp(name + namelen-extlen, ext)) { base[namelen - extlen] = '\0'; } return base; } size_t widl_getline(char **linep, size_t *lenp, FILE *fp) { char *line = *linep; size_t len = *lenp; size_t n = 0; if (!line) { len = 64; line = xmalloc(len); } while (fgets(&line[n], len - n, fp)) { n += strlen(&line[n]); if (line[n - 1] == '\n') break; else if (n == len - 1) { len *= 2; line = xrealloc(line, len); } } *linep = line; *lenp = len; return n; } void *xmalloc(size_t size) { void *res; assert(size > 0); res = malloc(size); if(res == NULL) { error("Virtual memory exhausted.\n"); } memset(res, 0x55, size); return res; } void *xrealloc(void *p, size_t size) { void *res; assert(size > 0); res = realloc(p, size); if(res == NULL) { error("Virtual memory exhausted.\n"); } return res; } char *xstrdup(const char *str) { char *s; assert(str != NULL); s = xmalloc(strlen(str)+1); return strcpy(s, str); } int strendswith(const char* str, const char* end) { int l = strlen(str); int m = strlen(end); return l >= m && strcmp(str + l - m, end) == 0; } /******************************************************************* * buffer management * * Function for writing to a memory buffer. */ int byte_swapped = 0; unsigned char *output_buffer; size_t output_buffer_pos; size_t output_buffer_size; static void check_output_buffer_space( size_t size ) { if (output_buffer_pos + size >= output_buffer_size) { output_buffer_size = max( output_buffer_size * 2, output_buffer_pos + size ); output_buffer = xrealloc( output_buffer, output_buffer_size ); } } void init_output_buffer(void) { output_buffer_size = 1024; output_buffer_pos = 0; output_buffer = xmalloc( output_buffer_size ); } void flush_output_buffer( const char *name ) { int fd = open( name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666 ); if (fd == -1) error( "Error creating %s\n", name ); if (write( fd, output_buffer, output_buffer_pos ) != output_buffer_pos) error( "Error writing to %s\n", name ); close( fd ); free( output_buffer ); } void put_data( const void *data, size_t size ) { check_output_buffer_space( size ); memcpy( output_buffer + output_buffer_pos, data, size ); output_buffer_pos += size; } void put_byte( unsigned char val ) { check_output_buffer_space( 1 ); output_buffer[output_buffer_pos++] = val; } void put_word( unsigned short val ) { if (byte_swapped) val = (val << 8) | (val >> 8); put_data( &val, sizeof(val) ); } void put_dword( unsigned int val ) { if (byte_swapped) val = ((val << 24) | ((val << 8) & 0x00ff0000) | ((val >> 8) & 0x0000ff00) | (val >> 24)); put_data( &val, sizeof(val) ); } void put_qword( unsigned int val ) { if (byte_swapped) { put_dword( 0 ); put_dword( val ); } else { put_dword( val ); put_dword( 0 ); } } /* pointer-sized word */ void put_pword( unsigned int val ) { if (pointer_size == 8) put_qword( val ); else put_dword( val ); } void put_str( int indent, const char *format, ... ) { int n; va_list args; check_output_buffer_space( 4 * indent ); memset( output_buffer + output_buffer_pos, ' ', 4 * indent ); output_buffer_pos += 4 * indent; for (;;) { size_t size = output_buffer_size - output_buffer_pos; va_start( args, format ); n = vsnprintf( (char *)output_buffer + output_buffer_pos, size, format, args ); va_end( args ); if (n == -1) size *= 2; else if ((size_t)n >= size) size = n + 1; else { output_buffer_pos += n; return; } check_output_buffer_space( size ); } } void align_output( unsigned int align ) { size_t size = align - (output_buffer_pos % align); if (size == align) return; check_output_buffer_space( size ); memset( output_buffer + output_buffer_pos, 0, size ); output_buffer_pos += size; }