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preloader: Added printf format checking and fix some formats.

This commit is contained in:
Alexandre Julliard 2007-01-11 12:46:06 +01:00
parent 13029a2536
commit 092ac1fbf5
1 changed files with 27 additions and 13 deletions
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40
loader/preloader.c
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@ -358,12 +358,14 @@ static inline void *wld_memset( void *dest, int val, size_t len )
*
* %x prints a hex number
* %s prints a string
* %p prints a pointer
*/
static int wld_vsprintf(char *buffer, const char *fmt, va_list args )
{
static const char hex_chars[16] = "0123456789abcdef";
const char *p = fmt;
char *str = buffer;
int i;
while( *p )
{
@ -372,11 +374,23 @@ static int wld_vsprintf(char *buffer, const char *fmt, va_list args )
p++;
if( *p == 'x' )
{
int i;
unsigned int x = va_arg( args, unsigned int );
for(i=7; i>=0; i--)
*str++ = hex_chars[(x>>(i*4))&0xf];
}
else if (p[0] == 'l' && p[1] == 'x')
{
unsigned long x = va_arg( args, unsigned long );
for(i=7; i>=0; i--)
*str++ = hex_chars[(x>>(i*4))&0xf];
p++;
}
else if( *p == 'p' )
{
unsigned long x = (unsigned long)va_arg( args, void * );
for(i=7; i>=0; i--)
*str++ = hex_chars[(x>>(i*4))&0xf];
}
else if( *p == 's' )
{
char *s = va_arg( args, char * );
@ -393,7 +407,7 @@ static int wld_vsprintf(char *buffer, const char *fmt, va_list args )
return str - buffer;
}
static void wld_printf(const char *fmt, ... )
static __attribute__((format(printf,1,2))) void wld_printf(const char *fmt, ... )
{
va_list args;
char buffer[256];
@ -405,7 +419,7 @@ static void wld_printf(const char *fmt, ... )
wld_write(2, buffer, len);
}
static __attribute__((noreturn)) void fatal_error(const char *fmt, ... )
static __attribute__((noreturn,format(printf,1,2))) void fatal_error(const char *fmt, ... )
{
va_list args;
char buffer[256];
@ -453,8 +467,8 @@ static void dump_auxiliary( ElfW(auxv_t) *av )
for ( ; av->a_type != AT_NULL; av++)
{
for (i = 0; names[i].name; i++) if (names[i].val == av->a_type) break;
if (names[i].name) wld_printf("%s = %x\n", names[i].name, av->a_un.a_val);
else wld_printf( "%x = %x\n", av->a_type, av->a_un.a_val );
if (names[i].name) wld_printf("%s = %lx\n", names[i].name, av->a_un.a_val);
else wld_printf( "%x = %lx\n", av->a_type, av->a_un.a_val );
}
}
#endif
@ -597,7 +611,7 @@ static void map_so_lib( const char *name, struct wld_link_map *l)
{
#ifdef DUMP_SEGMENTS
wld_printf( "ph = %x\n", ph );
wld_printf( "ph = %p\n", ph );
wld_printf( " p_type = %x\n", ph->p_type );
wld_printf( " p_flags = %x\n", ph->p_flags );
wld_printf( " p_offset = %x\n", ph->p_offset );
@ -696,8 +710,8 @@ static void map_so_lib( const char *name, struct wld_link_map *l)
/* sanity check */
if ((char *)c->mapstart + maplength > preloader_start &&
(char *)c->mapstart <= preloader_end)
fatal_error( "%s: binary overlaps preloader (%x-%x)\n",
name, c->mapstart, (char *)c->mapstart + maplength );
fatal_error( "%s: binary overlaps preloader (%p-%p)\n",
name, (char *)c->mapstart, (char *)c->mapstart + maplength );
ELF_FIXED_ADDRESS (loader, c->mapstart);
}
@ -815,7 +829,7 @@ static void *find_symbol( const ElfW(Phdr) *phdr, int num, const char *var, int
/* check the values */
#ifdef DUMP_SYMS
wld_printf("%x %x\n", phdr, num );
wld_printf("%p %x\n", phdr, num );
#endif
if( ( phdr == NULL ) || ( num == 0 ) )
{
@ -929,7 +943,7 @@ static void preload_reserve( const char *str )
else if ((char *)end > preloader_start &&
(char *)start <= preloader_end)
{
wld_printf( "WINEPRELOADRESERVE range %x-%x overlaps preloader %x-%x\n",
wld_printf( "WINEPRELOADRESERVE range %p-%p overlaps preloader %p-%p\n",
start, end, preloader_start, preloader_end );
start = end = NULL;
}
@ -1048,7 +1062,7 @@ void* wld_start( void **stack )
preloader_end = (char *)((unsigned int)(_end + page_mask) & ~page_mask);
#ifdef DUMP_AUX_INFO
wld_printf( "stack = %x\n", *stack );
wld_printf( "stack = %p\n", *stack );
for( i = 0; i < *pargc; i++ ) wld_printf("argv[%x] = %s\n", i, argv[i]);
dump_auxiliary( av );
#endif
@ -1060,7 +1074,7 @@ void* wld_start( void **stack )
if (wld_mmap( preload_info[i].addr, preload_info[i].size, PROT_NONE,
MAP_FIXED | MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, -1, 0 ) == (void *)-1)
{
wld_printf( "preloader: Warning: failed to reserve range %x-%x\n",
wld_printf( "preloader: Warning: failed to reserve range %p-%p\n",
preload_info[i].addr, (char *)preload_info[i].addr + preload_info[i].size );
remove_preload_range( i );
i--;
@ -1117,7 +1131,7 @@ void* wld_start( void **stack )
set_auxiliary_values( av, new_av, delete_av, stack );
#ifdef DUMP_AUX_INFO
wld_printf("new stack = %x\n", *stack);
wld_printf("new stack = %p\n", *stack);
wld_printf("jumping to %x\n", ld_so_map.l_entry);
#endif