/usr/bin/avos:AOS parse version()

From ArchosDocs

Description

Parse the VERS block.

References To

• AOS_callback_compare_versions()

The Code

int AOS_parse_version(int fd /* -0x28 */)
{
	char buf[8];		// -0x20
	int ret;		// -0x18
	int pos;		// -0x14
	int read;		// -0x10
 
	ret = 0;
	pos = 0;
	read = 0;
 
	pos = (uint32_t)ftell64(fd);
	if(pos == AOS_file_length)
		return 252;
 
	read = _aos_read(fd, &buf, 8);
 
	if(read != 8)
		return 209;
 
	pos += *(uint32_t *)&buf[4];
 
	if(*(uint32_t *)&buf[0] != 0x56455253 /* VERS */)
		ret = 236;
	else {
		ret = AOS_callback_compare_versions(fd);
	}
 
	_aos_seek(fd, SEEK_SET, pos);
 
	return ret;
}