Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to get free disk space size in C/C++ program( Solaris system)
Top Forums Programming How to get free disk space size in C/C++ program( Solaris system) Post 302086263 by vrghost on Wednesday 23rd of August 2006 09:30:25 AM
Old 08-23-2006
Needed to write something to get information from the disks and send it to a web app, so here is the code (the html stuff removed), this should give you the info (works on our AIX servers atleast). Only thing is it does give a slightly higher free space value than df, not certain what is causing it.

Code:
/*
################################################################################
##                              diskstat.c                                    ##
################################################################################
## diskstat returns (or will soon return to be more precice) webified diskstat for specific disk, should change to     ##
## XML'ified info at some point.....                                          ##
################################################################################
*/

#include <sys/statvfs.h>

int main( int argc, char *argv[] )
{
        struct statvfs fiData;
        struct statvfs *fpData;
        char fnPath[128];
        int i;

        if( argc < 2 ) {
                printf("Usage, webdisk DEVICE0 ..... DEVICEX\n");
                return(2);
        }

        //Lets loopyloop through the argvs
        for( i = 1 ; i<argc; i++ ) {
                strcpy(fnPath, argv[i]);
                if((statvfs(fnPath,&fiData)) < 0 ) {
                        printf("Failed to stat %s:\n", fnPath);
                } else {
                        printf("Disk %s: \n", fnPath);
                        printf("\tblock size: %u\n", fiData.f_bsize);
                        printf("\ttotal no blocks: %i\n", fiData.f_blocks);
                        printf("\tfree blocks: %i\n", fiData.f_bfree);
                }
        }
}


For the other members of the struct, check sys/statvfs.h.

Just compile and send it the mountpoint of the disk.
So for example ./a.out /

BTW Thanks blowtorch for pointing me in the right direction whith statvls.
 

10 More Discussions You Might Find Interesting

1. Programming

free disk space calc

I everybody!! How can i use statvfs() to calculate disk usage and free disk space?? Im using this code: /* Any file on the filesystem in question */ char *filename = "/home/nesto/test/test.cpp"; struct statvfs buf; if (!statvfs(filename, &buf)) { ... (1 Reply)
Discussion started by: ninjanesto
1 Replies

2. Solaris

command to find free disk space on solaris

In linux df is the command to find free space what is the equivalent command in the Solaris (2 Replies)
Discussion started by: harishankar
2 Replies

3. AIX

AIX Free disk space

Hello, I would like to free some space to install gcc with is about 50M large, and I have no free space on my system. What can I delete? Filesystem 1024-blocks Used Free %Used Iused Ifree %Iused Mounted on /dev/hd4 262144 145436 116708 56% 7981 ... (10 Replies)
Discussion started by: aixn00b
10 Replies

4. Solaris

command to get the total disk space (available + free)

is there a command to get the total disk space (available + free) on the solaris server ? thanks (3 Replies)
Discussion started by: sudhiroracle
3 Replies

5. Solaris

Disk free space planning for Sol 10 LU

I'm getting ready to start a LU from Sol 9 to Solaris 10. I want to ensure that I have enough disk space for future upgrades. What I don't know is what free space Solaris requires. If I have 10GB of free space in /opt, will Solaris 10 use that for a LU? Or, do I need to allocate 10GB of space... (5 Replies)
Discussion started by: zeekstern
5 Replies

6. Solaris

free size of disk group

Hello Good morning all, Am not understanding the size of subdisk & group(length &offset).how we need to calculate this? Can anyone suggest me ? Thanks, Gowtham ---------- Post updated at 12:48 PM ---------- Previous update was at 08:30 AM ---------- I got the answer ... if want the... (0 Replies)
Discussion started by: gowthamakanthan
0 Replies

7. Shell Programming and Scripting

Free space at disk

Hi, I would like to create the new file system(mount point) in our unix server. before that i would like to know the total free space available in /home directory. Can you please let me know, how to find free space available for new filesystem? Be careful with your spelling and... (2 Replies)
Discussion started by: koti_rama
2 Replies

8. Solaris

Determine free space in a Disk device

Version: Solaris 10 (August 2011) on VM I am kind of new to Solaris.From VM workstation i allocated 35 GB to this Solaris VM's Disk The disk was named c1t0d0 Few basic slices for root(8gb), swap(517mb) and /export/home(494mb) were created by the solaris Installer during the... (18 Replies)
Discussion started by: polavan
18 Replies

9. Shell Programming and Scripting

I need help!! disk free space script

i want to write a shell script,when disk uses is 90% then automatically send a email to distribution list (group member)...... (1 Reply)
Discussion started by: sonu pandey
1 Replies

10. Solaris

Check free disk space in server

Hi, I need about 500G space in one corporate solaris server. However, I am not sure which command to use to check this. There are few volume groups in the server, and I deleted unused, old volume groups to clear some space. However, now I am not sure how to check the free space itself. ... (2 Replies)
Discussion started by: anaigini45
2 Replies

LEARN ABOUT ULTRIX

df

df(1)							      General Commands Manual							     df(1)

Name
       df - display free and used disk space

Syntax
       df [-i] [-l] [-n] [filesystem...] [file...]

Description
       The command displays the amount of disk space available on the specified file system, for example, It also displays the amount of available
       disk space on the file system in which the specified file is contained, for example, If a device is given that has no file systems  mounted
       on  it,	displays  the  information  for  the  root file system.  Without any arguments or options, displays shows all mounted filesystems,
       including those manually mounted without use of the file.  The numbers are reported in kilobytes.

       Unless the -n option is specified, updates the statistics stored in memory for the file system specified, before it  returns  the  informa-
       tion.

Options
       -i   Also report the number of used and free inodes.

       -l   Reports on locally mounted disks only.

       -n   Do	not  update the file system statistics stored in memory.  Instead, return whatever statistics are stored in memory.  This prevents
	    from hanging in the event that a server containing the specified file system is down.

Restrictions
       You cannot use the command to find free space on an unmounted file system using the block or character special device name.   Instead,  use
       the command.

Examples
       % df
       Filesystem     Total    kbytes  kbytes	%
       node	      kbytes   used    free	used	Mounted on
       /dev/ra1a       7429    2085    4602	31%    /tmp
       /dev/ra0e      30519   14817   12651	54%    /usr/spool
       /dev/ra0h     313233  122858  159052	44%    /usr/staff1

       The  total  disk  space is the total space that was created during the making of the file system.  The addition of the used space, the free
       space and a percentage of reserved space is the total space.  The default value for the reserved space is 10%.

Files
       List of mounted file systems

See Also
       getmnt(2), fstab(5), dumpfs(8), icheck(8), mkfs(8), newfs(8), quot(8)

																	     df(1)
All times are GMT -4. The time now is 03:27 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy