Sweden-Number/tools/winebuild/res16.c

313 lines
8.4 KiB
C

/*
* Builtin dlls resource support
*
* Copyright 2000 Alexandre Julliard
*/
#include "config.h"
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include "winbase.h"
#include "build.h"
#define ALIGNMENT 2 /* alignment for resource data */
#define ALIGN_MASK ((1 << ALIGNMENT) - 1)
/* Unicode string or integer id */
struct string_id
{
char *str; /* ptr to string */
WORD id; /* integer id if str is NULL */
};
/* descriptor for a resource */
struct resource
{
struct string_id type;
struct string_id name;
const void *data;
unsigned int data_size;
WORD memopt;
};
/* type level of the resource tree */
struct res_type
{
const struct string_id *type; /* type name */
const struct resource *res; /* first resource of this type */
unsigned int nb_names; /* total number of names */
};
static struct resource *resources;
static int nb_resources;
static struct res_type *res_types;
static int nb_types; /* total number of types */
static const unsigned char *file_pos; /* current position in resource file */
static const unsigned char *file_end; /* end of resource file */
static const char *file_name; /* current resource file name */
inline static struct resource *add_resource(void)
{
resources = xrealloc( resources, (nb_resources + 1) * sizeof(*resources) );
return &resources[nb_resources++];
}
static struct res_type *add_type( const struct resource *res )
{
struct res_type *type;
res_types = xrealloc( res_types, (nb_types + 1) * sizeof(*res_types) );
type = &res_types[nb_types++];
type->type = &res->type;
type->res = res;
type->nb_names = 0;
return type;
}
/* get the next byte from the current resource file */
static WORD get_byte(void)
{
unsigned char ret = *file_pos++;
if (file_pos > file_end) fatal_error( "%s is a truncated/corrupted file\n", file_name );
return ret;
}
/* get the next word from the current resource file */
static WORD get_word(void)
{
/* might not be aligned */
/* FIXME: should we change this on big-endian machines? */
unsigned char low = get_byte();
unsigned char high = get_byte();
return low | (high << 8);
}
/* get the next dword from the current resource file */
static DWORD get_dword(void)
{
WORD low = get_word();
WORD high = get_word();
return low | (high << 16);
}
/* get a string from the current resource file */
static void get_string( struct string_id *str )
{
if (*file_pos == 0xff)
{
get_byte(); /* skip the 0xff */
str->str = NULL;
str->id = get_word();
}
else
{
char *p = xmalloc( (strlen(file_pos) + 1) );
str->str = p;
str->id = 0;
while ((*p++ = get_byte()));
}
}
/* load the next resource from the current file */
static void load_next_resource(void)
{
struct resource *res = add_resource();
get_string( &res->type );
get_string( &res->name );
res->memopt = get_word();
res->data_size = get_dword();
res->data = file_pos;
file_pos += res->data_size;
if (file_pos > file_end) fatal_error( "%s is a truncated/corrupted file\n", file_name );
}
/* load a Win16 .res file */
void load_res16_file( const char *name )
{
int fd;
void *base;
struct stat st;
if ((fd = open( name, O_RDONLY )) == -1) fatal_perror( "Cannot open %s", name );
if ((fstat( fd, &st ) == -1)) fatal_perror( "Cannot stat %s", name );
if (!st.st_size) fatal_error( "%s is an empty file\n" );
#ifdef HAVE_MMAP
if ((base = mmap( NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0 )) == (void*)-1)
#endif /* HAVE_MMAP */
{
base = xmalloc( st.st_size );
if (read( fd, base, st.st_size ) != st.st_size)
fatal_error( "Cannot read %s\n", name );
}
file_name = name;
file_pos = base;
file_end = file_pos + st.st_size;
while (file_pos < file_end) load_next_resource();
}
/* compare two strings/ids */
static int cmp_string( const struct string_id *str1, const struct string_id *str2 )
{
if (!str1->str)
{
if (!str2->str) return str1->id - str2->id;
return 1; /* an id compares larger than a string */
}
if (!str2->str) return -1;
return strcasecmp( str1->str, str2->str );
}
/* compare two resources for sorting the resource directory */
/* resources are stored first by type, then by name */
static int cmp_res( const void *ptr1, const void *ptr2 )
{
const struct resource *res1 = ptr1;
const struct resource *res2 = ptr2;
int ret;
if ((ret = cmp_string( &res1->type, &res2->type ))) return ret;
return cmp_string( &res1->name, &res2->name );
}
/* build the 2-level (type,name) resource tree */
static void build_resource_tree(void)
{
int i;
struct res_type *type = NULL;
qsort( resources, nb_resources, sizeof(*resources), cmp_res );
for (i = 0; i < nb_resources; i++)
{
if (!i || cmp_string( &resources[i].type, &resources[i-1].type )) /* new type */
type = add_type( &resources[i] );
type->nb_names++;
}
}
inline static void put_byte( unsigned char **buffer, unsigned char val )
{
*(*buffer)++ = val;
}
inline static void put_word( unsigned char **buffer, WORD val )
{
put_byte( buffer, LOBYTE(val) );
put_byte( buffer, HIBYTE(val) );
}
/* output a string preceded by its length */
static void output_string( unsigned char **buffer, const char *str )
{
int len = strlen(str);
put_byte( buffer, len );
while (len--) put_byte( buffer, *str++ );
}
/* output the resource data */
int output_res16_data( FILE *outfile )
{
const struct resource *res;
unsigned char *buffer, *p;
int i, total;
if (!nb_resources) return 0;
for (i = total = 0, res = resources; i < nb_resources; i++, res++)
total += (res->data_size + ALIGN_MASK) & ~ALIGN_MASK;
buffer = p = xmalloc( total );
for (i = 0, res = resources; i < nb_resources; i++, res++)
{
memcpy( p, res->data, res->data_size );
p += res->data_size;
while ((int)p & ALIGN_MASK) *p++ = 0;
}
dump_bytes( outfile, buffer, total, "resource_data", 1 );
free( buffer );
return total;
}
/* output the resource definitions */
int output_res16_directory( unsigned char *buffer )
{
int i, offset, res_offset = 0;
unsigned int j;
const struct res_type *type;
const struct resource *res;
unsigned char *start = buffer;
build_resource_tree();
offset = 4; /* alignment + terminator */
offset += nb_types * 8; /* typeinfo structures */
offset += nb_resources * 12; /* nameinfo structures */
put_word( &buffer, ALIGNMENT );
/* type and name structures */
for (i = 0, type = res_types; i < nb_types; i++, type++)
{
if (type->type->str)
{
put_word( &buffer, offset );
offset += strlen(type->type->str) + 1;
}
else
put_word( &buffer, type->type->id | 0x8000 );
put_word( &buffer, type->nb_names );
put_word( &buffer, 0 );
put_word( &buffer, 0 );
for (j = 0, res = type->res; j < type->nb_names; j++, res++)
{
put_word( &buffer, res_offset >> ALIGNMENT );
put_word( &buffer, (res->data_size + ALIGN_MASK) >> ALIGNMENT );
put_word( &buffer, res->memopt );
if (res->name.str)
{
put_word( &buffer, offset );
offset += strlen(res->name.str) + 1;
}
else
put_word( &buffer, res->name.id | 0x8000 );
put_word( &buffer, 0 );
put_word( &buffer, 0 );
res_offset += (res->data_size + ALIGN_MASK) & ~ALIGN_MASK;
}
}
put_word( &buffer, 0 ); /* terminator */
/* name strings */
for (i = 0, type = res_types; i < nb_types; i++, type++)
{
if (type->type->str) output_string( &buffer, type->type->str );
for (j = 0, res = type->res; j < type->nb_names; j++, res++)
{
if (res->name.str) output_string( &buffer, res->name.str );
}
}
put_byte( &buffer, 0 ); /* names terminator */
if ((buffer - start) & 1) put_byte( &buffer, 0 ); /* align on word boundary */
return buffer - start;
}