Hi all,

Our code need get to know the working directory of given process based
specific pid. Could anyone give me a hand to give me informations?

This is a problem I can not get from google search.

Thank you very much

Wu Ting Bin wrote:
> Hi all,
>
> Our code need get to know the working directory of given process based
> specific pid. Could anyone give me a hand to give me informations?
>

Following code assumes that current working directory
is found in lookup cache (assumption is in pstat_getpathname).
Please use this snip at your risk as this may not work in
all situations..

--vishwas.

--

#include <sys/pstat.h>
#include <sys/param.h>
#include <fcntl.h>
#include <stdio.h>

main(int argc , char **argv)
{

struct pst_status pst[1];
int count;
char buf[MAXPATHLEN+1];
pid_t pid;

if ( argc != 2 ) {
printf("Usage: pwdx <pid>\n");
exit(1);
}

pid = atol (argv[1]);


if ( getppid(pid) < 0 ) {

fprintf(stderr,"Error: %s %d is not a valid pid.\n",
argv[1],pid);
exit(1);
}

bzero(buf,MAXPATHLEN+1);

if ( (count=pstat_getproc(pst, sizeof(pst[0]), 0, pid )) > 0 ) {

printf("pid is %d, command is %s\n",
pst[0].pst_pid, pst[0].pst_ucomm);

}

count = pstat_getpathname(buf,MAXPATHLEN,&pst[0].pst_fid_cdir);

if (count > 0) {
printf("%s\n", buf);
exit(0);
}
else {
fprintf(stderr,"ERROR getting the CWD.\n");
perror("pstat_getpathname");
exit(1);
}
}

"Wu Ting Bin" <wutingbin@gmail.com> wrote in message
news:1194426153.123297.225880@19g2000hsx.googlegro ups.com...
> Hi all,
>
> Our code need get to know the working directory of given process based
> specific pid. Could anyone give me a hand to give me informations?
>
> This is a problem I can not get from google search.
>
> Thank you very much
>

Try lsof (with -p pid) available from http://hpux.cs.utah.edu/

The first line should have the FD of 'cwd' and be your current working
directory.



--
Posted via a free Usenet account from http://www.teranews.com

On 11ÔÂ9ÈÕ, ÉÏÎç10ʱ52·Ö, Vishwas Pai <non...@noland..invalid> wrote:
> Wu Ting Bin wrote:
> > Hi all,
>
> > Our code need get to know theworkingdirectoryof given process based
> > specific pid. Could anyone give me a hand to give me informations?
>
> Following code assumes that currentworkingdirectory
> is found in lookup cache (assumption is in pstat_getpathname).
> Please use this snip at your risk as this may not work in
> all situations..
>
> --vishwas.
>
> --
>
> #include <sys/pstat.h>
> #include <sys/param.h>
> #include <fcntl.h>
> #include <stdio.h>
>
> main(int argc , char **argv)
> {
>
> struct pst_status pst[1];
> int count;
> char buf[MAXPATHLEN+1];
> pid_t pid;
>
> if ( argc != 2 ) {
> printf("Usage: pwdx <pid>\n");
> exit(1);
> }
>
> pid = atol (argv[1]);
>
> if ( getppid(pid) < 0 ) {
>
> fprintf(stderr,"Error: %s %d is not a valid pid.\n",
> argv[1],pid);
> exit(1);
> }
>
> bzero(buf,MAXPATHLEN+1);
>
> if ( (count=pstat_getproc(pst, sizeof(pst[0]), 0, pid )) > 0 ) {
>
> printf("pid is %d, command is %s\n",
> pst[0].pst_pid, pst[0].pst_ucomm);
>
> }
>
> count = pstat_getpathname(buf,MAXPATHLEN,&pst[0].pst_fid_cdir);
>
> if (count > 0) {
> printf("%s\n", buf);
> exit(0);
> }
> else {
> fprintf(stderr,"ERROR getting the CWD.\n");
> perror("pstat_getpathname");
> exit(1);
> }
>
>
>
> }- Òþ²Ø±»ÒýÓÃÎÄ×Ö -
>
> - ÏÔʾÒýÓõÄÎÄ×Ö -

It works. Thanks.

On 11ÔÂ19ÈÕ, ÉÏÎç10ʱ18·Ö, "Kilgaard" <Kilga...@hotmail.com> wrote:
> "Wu Ting Bin" <wuting...@gmail.com> wrote in messagenews:1194426153.123297..225880@19g2000hsx.g ooglegroups.com...
>
> > Hi all,
>
> > Our code need get to know theworkingdirectoryof given process based
> > specific pid. Could anyone give me a hand to give me informations?
>
> > This is a problem I can not get from google search.
>
> > Thank you very much
>
> Try lsof (with -p pid) available fromhttp://hpux.cs.utah.edu/
>
> The first line should have the FD of 'cwd' and be your currentworkingdirectory.
>
> --
> Posted via a free Usenet account fromhttp://www.teranews.com

You are right. But I can not install lsof tool in that machine. Thank
you too.