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libwine: Fix lookup of 16-bit dll placeholders. Remove some old compatibility code.

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This commit is contained in:
Alexandre Julliard 2007-07-30 14:44:05 +02:00
parent af4b9bb85c
commit 44639b326b
1 changed files with 9 additions and 26 deletions
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35
libs/wine/loader.c
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@ -64,6 +64,7 @@ struct dll_path_context
char *buffer; /* buffer used for storing path names */
char *name; /* start of file name part in buffer (including leading slash) */
int namelen; /* length of file name without .so extension */
int win16; /* 16-bit dll search */
};
#define MAX_DLLS 100
@ -170,7 +171,7 @@ static char *next_dll_path( struct dll_path_context *context )
switch(index)
{
case 0: /* try programs dir for .exe files */
if (namelen > 4 && !memcmp( context->name + namelen - 4, ".exe", 4 ))
if (!context->win16 && namelen > 4 && !memcmp( context->name + namelen - 4, ".exe", 4 ))
{
path = prepend( path, context->name, namelen - 4 );
path = prepend( path, "/programs", sizeof("/programs") - 1 );
@ -181,7 +182,7 @@ static char *next_dll_path( struct dll_path_context *context )
/* fall through */
case 1: /* try dlls dir with subdir prefix */
if (namelen > 4 && !memcmp( context->name + namelen - 4, ".dll", 4 )) namelen -= 4;
path = prepend( path, context->name, namelen );
if (!context->win16) path = prepend( path, context->name, namelen );
path = prepend( path, "/dlls", sizeof("/dlls") - 1 );
path = prepend( path, build_dir, strlen(build_dir) );
return path;
@ -196,15 +197,17 @@ static char *next_dll_path( struct dll_path_context *context )
/* get a filename from the first entry in the dll path */
static char *first_dll_path( const char *name, const char *ext, struct dll_path_context *context )
static char *first_dll_path( const char *name, int win16, struct dll_path_context *context )
{
char *p;
int namelen = strlen( name );
const char *ext = win16 ? "16" : ".so";
context->buffer = malloc( dll_path_maxlen + 2 * namelen + strlen(ext) + 3 );
context->index = build_dir ? 0 : 2; /* if no build dir skip all the build dir magic cases */
context->name = context->buffer + dll_path_maxlen + namelen + 1;
context->namelen = namelen + 1;
context->win16 = win16;
/* store the name at the end of the buffer, followed by extension */
p = context->name;
@ -232,7 +235,7 @@ static void *dlopen_dll( const char *name, char *error, int errorsize,
void *ret = NULL;
*exists = 0;
for (path = first_dll_path( name, ".so", &context ); path; path = next_dll_path( &context ))
for (path = first_dll_path( name, 0, &context ); path; path = next_dll_path( &context ))
{
if (!test_only && (ret = wine_dlopen( path, RTLD_NOW, error, errorsize ))) break;
if ((*exists = file_exists( path ))) break; /* exists but cannot be loaded, return the error */
@ -562,7 +565,7 @@ int wine_dll_get_owner( const char *name, char *buffer, int size, int *exists )
*exists = 0;
for (path = first_dll_path( name, "16", &context ); path; path = next_dll_path( &context ))
for (path = first_dll_path( name, 1, &context ); path; path = next_dll_path( &context ))
{
int fd = open( path, O_RDONLY );
if (fd != -1)
@ -577,26 +580,6 @@ int wine_dll_get_owner( const char *name, char *buffer, int size, int *exists )
}
}
free_dll_path( &context );
if (ret != -1) return ret;
/* try old method too for backwards compatibility; will be removed later on */
for (path = first_dll_path( name, ".so", &context ); path; path = next_dll_path( &context ))
{
int res = readlink( path, buffer, size );
if (res != -1) /* got a symlink */
{
*exists = 1;
if (res < 4 || res >= size) break;
buffer[res] = 0;
if (strchr( buffer, '/' )) break; /* contains a path, not valid */
if (strcmp( buffer + res - 3, ".so" )) break; /* does not end in .so, not valid */
buffer[res - 3] = 0; /* remove .so */
ret = 0;
break;
}
if ((*exists = file_exists( path ))) break; /* exists but not a symlink, return the error */
}
free_dll_path( &context );
return ret;
}
@ -648,7 +631,7 @@ void wine_init( int argc, char *argv[], char *error, int error_size )
mmap_init();
debug_init();
for (path = first_dll_path( "ntdll.dll", ".so", &context ); path; path = next_dll_path( &context ))
for (path = first_dll_path( "ntdll.dll", 0, &context ); path; path = next_dll_path( &context ))
{
if ((ntdll = wine_dlopen( path, RTLD_NOW, error, error_size )))
{