int start_shell(t_data *data)
{
char *buf;
int ret;
while (1)
{
get_usr_name(data);
my_putstr(data->user);
if ((buf = get_next_line(0)) == NULL)
return (0);
if (buf[0] == 0)
free(buf);
else if ((ret = exec_cmd(buf, data)) == 1 || ret == -1)
return (0);
else if (ret == -2)
return (-2);
}
return (0);
}
void
get_ps_data(void)
{
ps_ldata_t *ps_last = PS_LNULL;
ps_ldata_t *ps_head = PS_LNULL;
ps_ldata_t *psp;
ps_data_t *pstp;
static char *usrname;
int i = 0;
DIR *dirp;
struct dirent *dentp;
char pname[MAXNAMELEN];
int pdlen;
char *gettty();
if (pstable != PS_NULL) { /* Don't run ps unless we need to */
if ((cache_now - ps_cache_time) <= cache_lifetime)
return;
free(pstable);
}
pstable_lines = 0;
ps_cache_time = cache_now;
/*
* Determine root path for remote machine.
*/
if (!readata()) { /* get data from psfile */
call_ftw_for_dev();
wrdata();
}
/*
* Determine which processes to print info about by searching
* the /proc directory and looking at each process.
*/
if ((dirp = opendir(procdir)) == NULL) {
(void) SYSLOG0("Cannot open PROC directory\n");
return;
}
(void) strcpy(pname, procdir);
pdlen = strlen(pname);
pname[pdlen++] = '/';
/* for each active process --- */
while (dentp = readdir(dirp)) {
int procfd;
if (dentp->d_name[0] == '.') /* skip . and .. */
continue;
(void) strcpy(pname + pdlen, dentp->d_name);
retry:
if ((procfd = open(pname, O_RDONLY)) == -1)
continue;
/*
* Get the info structure for the process and close quickly.
*/
if (ioctl(procfd, PIOCPSINFO, (char *)&info) == -1) {
int saverr = errno;
(void) close(procfd);
if (saverr == EAGAIN)
goto retry;
if (saverr != ENOENT)
(void) SYSLOG2("PIOCPSINFO on %s: %s\n",
pname, strerror(saverr));
continue;
}
(void) close(procfd);
if ((psp = (ps_ldata_t *)malloc(sizeof (ps_ldata_t))) == PS_LNULL)
break;
memset((char *)psp, 0, sizeof (ps_ldata_t));
psp->pdata.uid = info.pr_uid;
psp->pdata.pid = info.pr_pid;
psp->pdata.ppid = info.pr_ppid;
psp->pdata.sz = info.pr_size;
if (info.pr_wchan)
sprintf(psp->pdata.wchan, "%9x", info.pr_wchan);
else
strcpy(psp->pdata.wchan, " ");
memset(&psp->pdata.stat[0], 0, STAT_SZ+1);
if (info.pr_sname)
psp->pdata.stat[0] = info.pr_sname;
i = 0;
strcpy(psp->pdata.tty, (char *)gettty(&i));
psp->pdata.cpu = info.pr_time.tv_sec;
strcpy(psp->pdata.cmd, info.pr_fname);
if ((usrname = (get_usr_name(psp->pdata.uid))) != NULL)
strncpy(psp->pdata.usrname, usrname, USRNM_SZ);
else {
free(psp);
continue;
}
psp->pdata.usrname[USRNM_SZ] = '\0';
pstable_lines++;
if (ps_last == PS_LNULL)
ps_head = psp;
else
ps_last->link = psp;
ps_last = psp;
}
(void) closedir(dirp);
if ((pstable = (ps_data_t *)malloc(pstable_lines
* sizeof (ps_data_t))) == PS_NULL) {
clean_ps(ps_head);
return;
}
for (pstp = pstable, psp = ps_head; psp != PS_LNULL;
pstp++, psp = psp->link) {
memcpy((char *)pstp, (char *)&(psp->pdata), sizeof (ps_data_t));
}
clean_ps(ps_head);
qsort(pstable, pstable_lines, sizeof (ps_data_t), (int (*)())pscomp);
}