Hi All,
I am writing application to list all process and opened files by the
process, where I am able to get the process information like
Pid,ppid, path, process commadline arguments etc using sysctl()
( followed this link http://developer.apple.com/qa/qa2001/
qa1123.html) .
I am using the following code to get the file information about
every process.
int mib[3];
struct extern_file *file = NULL ; // Is it the correct structure ?
mib[0] = CTL_KERN;
mib[1] = KERN_MAXFILES;
mib[2] = 1693 ;
size = sizeof(argmax) ;
if (sysctl((int *)mib, 2, &argmax, &size, NULL, 0) < 0) {
printf("No args found\n");
printf("Error is %s\n", strerror(errno)) ;
}
else
{
printf("size is Given as %d\n",argmax) ; // argmax is
giving me the correct values (i.e. count of all opened files )
size = (size_t)argmax ;
mib[0] = CTL_KERN; // Here I am resetting the mib arry
for getting per process file information .
mib[1] = KERN_FILE;
mib[2] = 1693 ;//1693 ;//procList[i].kp_proc.p_pid;
file =(extern_file*) malloc(argmax);
if(file == NULL)
{
printf("file pointe not allocated yes\n") ;
}
if (sysctl((int *)mib, 3, fileNew, &size, NULL, 0) < 0)
{
printf("Error in getting file struct %s\n",
strerror(errno)) ;
}
else
{
// Print file attributes
}
I want to list all file descriptors file paths and other file
attributes , which I am not getting with this program and getting an
error “Not a directory” during second sysctl call, where as getting
the correct file count after first sysctl() call.
According to the man page of sysctl() KERN_FILE will return a file
structure which is not at all documented ( not confirm about the
structure to use ), there is no file structure exposed on Mac OS X
(apart from extern_file and filedesc),
I am not sure which structure to use ? is it possible to get per
process file information using KERN_FILE?
Is it the correct approach or there is any other way to get the same ?
OS version is 10.4.7
Thanks in advance!
Regards,
Manish.
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/darwin-dev/email@hidden
This email sent to email@hidden
