Virtual Disk API Programming Guide - Documentation - VMware

6Vi
Practical Programming Tasks 6
This chapter presents some practical programming challenges not covered in the sample program, including:
“Scan VMDK for Virus Signatures” on page 49
“Creating Virtual Disks” on page 50
“Working with Virtual Disk Data” on page 51
“Managing Child Disks” on page 52
“RDM Disks and Virtual BIOS” on page 53
“Interfacing With VMware vSphere” on page 54
Scan VMDK for Virus Signatures
One of the tasks listed in “Use Cases for the Virtual Disk Library” on page 12 is to scan a VMDK for virus
signatures. Using the framework of our sample program, a function can implement the -virus command‐line
option. The function in Example 6‐1 relies on a pre‐existing library routine called SecureVirusScan(), which
typically is supplied by a vendor of antivirus software. As it does for email messages, the library routine scans
a buffer of any size against the vendor’s latest pattern library, and returns TRUE if it identifies a virus.
Example 6-1. Function to Scan VMDK for Viruses
extern int SecureVirusScan(const uint8 *buf, size_t n);
/*
* DoVirusScan - Scan the content of a virtual disk for virus signatures.
*/
static void DoVirusScan(void)
{
VixDisk disk(appGlobals.connection, appGlobals.diskPath, appGlobals.openFlags);
VixDiskLibDiskInfo info;
uint8 buf[VIXDISKLIB_SECTOR_SIZE];
VixDiskLibSectorType sector;
}
VixError vixError = VixDiskLib_GetInfo(disk.Handle(), &info);
CHECK_AND_THROW(vixError);
cout