Sweden-Number/tools/wmc/utils.c

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/*
* Utility routines
*
* Copyright 1998,2000 Bertho A. Stultiens
*
* 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 <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include "wmctypes.h"
#include "utils.h"
#include "wmc.h"
#define SUPPRESS_YACC_ERROR_MESSAGE
static void generic_msg(const char *s, const char *t, va_list ap)
{
fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
vfprintf(stderr, s, ap);
}
/*
* The yyerror routine should not exit because we use the error-token
* to determine the syntactic error in the source. However, YACC
* uses the same routine to print an error just before the error
* token is reduced.
* The extra routine 'xyyerror' is used to exit after giving a real
* message.
*/
int mcy_error(const char *s, ...)
{
#ifndef SUPPRESS_YACC_ERROR_MESSAGE
va_list ap;
va_start(ap, s);
generic_msg(s, "Yacc error", ap);
va_end(ap);
#endif
return 1;
}
int xyyerror(const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(s, "Error", ap);
va_end(ap);
exit(1);
return 1;
}
int mcy_warning(const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(s, "Warning", ap);
va_end(ap);
return 0;
}
void internal_error(const char *file, int line, const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
vfprintf(stderr, s, ap);
va_end(ap);
exit(3);
}
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);
}
char *dup_basename(const char *name, const char *ext)
{
int namelen;
int extlen = strlen(ext);
char *base;
char *slash;
if(!name)
name = "wmc.tab";
slash = strrchr(name, '/');
if (slash)
name = slash + 1;
namelen = strlen(name);
/* +4 for later extension and +1 for '\0' */
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base = xmalloc(namelen +4 +1);
strcpy(base, name);
if(!strcasecmp(name + namelen-extlen, ext))
{
base[namelen - extlen] = '\0';
}
return base;
}
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);
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s = xmalloc(strlen(str)+1);
return strcpy(s, str);
}
char *strmake( const char* fmt, ... )
{
int n;
size_t size = 100;
va_list ap;
for (;;)
{
char *p = xmalloc( size );
va_start( ap, fmt );
n = vsnprintf( p, size, fmt, ap );
va_end( ap );
if (n == -1) size *= 2;
else if ((size_t)n >= size) size = n + 1;
else return p;
free( p );
}
}
int unistrlen(const WCHAR *s)
{
int n;
for(n = 0; *s; n++, s++)
;
return n;
}
WCHAR *unistrcpy(WCHAR *dst, const WCHAR *src)
{
WCHAR *t = dst;
while(*src)
*t++ = *src++;
*t = 0;
return dst;
}
WCHAR *xunistrdup(const WCHAR * str)
{
WCHAR *s;
assert(str != NULL);
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s = xmalloc((unistrlen(str)+1) * sizeof(WCHAR));
return unistrcpy(s, str);
}
int unistricmp(const WCHAR *s1, const WCHAR *s2)
{
int i;
int once = 0;
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static const char warn[] = "Don't know the uppercase equivalent of non ascii characters;"
"comparison might yield wrong results";
while(*s1 && *s2)
{
if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
{
if(!once)
{
once++;
mcy_warning(warn);
}
i = *s1++ - *s2++;
}
else
i = toupper(*s1++) - toupper(*s2++);
if(i)
return i;
}
if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
{
if(!once)
mcy_warning(warn);
return *s1 - *s2;
}
else
return toupper(*s1) - toupper(*s2);
}
int unistrcmp(const WCHAR *s1, const WCHAR *s2)
{
int i;
while(*s1 && *s2)
{
i = *s1++ - *s2++;
if(i)
return i;
}
return *s1 - *s2;
}
/*******************************************************************
* 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 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;
}