How to get inode count of a filesystem on Solaris/Unix?

I was invoking the following command and reading the outpup df -F ufs -o i. It worked fine initially but then star开发者_运维问答ted to fail for the reason reported and explained here http://wesunsolve.net/bugid/id/6795242.

Although the solution suggested on the above link might work but it is ugly and I want a permanent solution. So, really looking for c api on Solaris/Unix that would give me the total and available number of inodes given a filesystem.

Sample/Example is much appreciated.

---

The statvfs system call can be used to retrieve file system statistics including the number of total inodes and the number of free inodes. Use the system call to retrieve a statvfs structure and then inspect the f_files and f_ffree fields to determine the number of inodes and the number of free inodes, respectively.

Example:

#include <statvfs.h>

struct statvfs buffer;
int            status;
fsfilcnt_t     total_inodes;
fsfilcnt_t     free_inodes;
...
status = statvfs("/home/betaylor/file_in_filesystem", &buffer);

total_inodes = buffer.f_files;
free_inodes  = buffer.f_ffree;
...

---

What you want is statvfs -- see the man page on the Solaris web site.