embedaddon/sudo/compat/dlopen.c - diff

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version 1.1.1.1, 2012/02/21 16:23:02	version 1.1.1.2, 2012/05/29 12:26:49
Line 77 sudo_dlsym(void vhandle, const char symbol)	Line 77 sudo_dlsym(void vhandle, const char symbol)
shl_t handle = vhandle;	shl_t handle = vhandle;
void *value = NULL;	void *value = NULL;

(void)shl_findsym(&handle, symbol, TYPE_UNDEFINED, &value);	/*
	* Note that the behavior of of RTLD_NEXT and RTLD_SELF
	* differs from most implementations when called from
	* a shared library.
	*/
	if (vhandle == RTLD_NEXT) {
	/* Iterate over all shared libs looking for symbol. */
	struct shl_descriptor *desc;
	int idx = 0;
	while (shl_get(idx++, &desc) == 0) {
	if (shl_findsym(&desc->handle, symbol, TYPE_UNDEFINED, &value) == 0)
	break;
	}
	} else {
	if (vhandle == RTLD_DEFAULT)
	handle = NULL;
	else if (vhandle == RTLD_SELF)
	handle = PROG_HANDLE;
	(void)shl_findsym(&handle, symbol, TYPE_UNDEFINED, &value);
	}

return value;	return value;
}	}
Line 117 sudo_dlsym(void handle, const char symbol)	Line 136 sudo_dlsym(void handle, const char symbol)
{	{
struct sudo_preload_table *sym;	struct sudo_preload_table *sym;

for (sym = sudo_preload_table; sym->name != NULL; sym++) {	if (symbol != RTLD_NEXT && symbol != RTLD_DEFAULT && symbol != RTLD_SELF) {
if (strcmp(symbol, sym->name) == 0)	for (sym = sudo_preload_table; sym->name != NULL; sym++) {
return sym->address;	if (strcmp(symbol, sym->name) == 0)
	return sym->address;
	}
}	}
return NULL;	return NULL;
}	}