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| static union el * select_procs (int *num)
{
PROCTAB *ptp;
proc_t task;
unsigned long long saved_start_time; // for new/old support
pid_t saved_pid = 0; // for new/old support
int matches = 0;
int size = 0;
regex_t *preg;
pid_t myself = getpid();
union el *list = NULL;
char cmd[4096];
ptp = do_openproc();
preg = do_regcomp();
if (opt_newest) saved_start_time = 0ULL;
if (opt_oldest) saved_start_time = ~0ULL;
if (opt_newest) saved_pid = 0;
if (opt_oldest) saved_pid = INT_MAX;
memset(&task, 0, sizeof (task));
while(readproc(ptp, &task)) {
int match = 1;
if (task.XXXID == myself)
continue;
else if (opt_newest && task.start_time < saved_start_time)
match = 0;
else if (opt_oldest && task.start_time > saved_start_time)
match = 0;
else if (opt_ppid && ! match_numlist (task.ppid, opt_ppid))
match = 0;
else if (opt_pid && ! match_numlist (task.tgid, opt_pid))
match = 0;
else if (opt_pgrp && ! match_numlist (task.pgrp, opt_pgrp))
match = 0;
else if (opt_euid && ! match_numlist (task.euid, opt_euid))
match = 0;
else if (opt_ruid && ! match_numlist (task.ruid, opt_ruid))
match = 0;
else if (opt_rgid && ! match_numlist (task.rgid, opt_rgid))
match = 0;
else if (opt_sid && ! match_numlist (task.session, opt_sid))
match = 0;
else if (opt_term) {
if (task.tty == 0) {
match = 0;
} else {
char tty[256];
dev_to_tty (tty, sizeof(tty) - 1,
task.tty, task.XXXID, ABBREV_DEV);
match = match_strlist (tty, opt_term);
}
}
if (opt_long || (match && opt_pattern)) {
if (opt_full && task.cmdline) {
int i = 0;
int bytes = sizeof (cmd) - 1;
/* make sure it is always NUL-terminated */
cmd[bytes] = 0;
/* make room for SPC in loop below */
--bytes;
strncpy (cmd, task.cmdline[i], bytes);
bytes -= strlen (task.cmdline[i++]);
while (task.cmdline[i] && bytes > 0) {
strncat (cmd, " ", bytes);
strncat (cmd, task.cmdline[i], bytes);
bytes -= strlen (task.cmdline[i++]) + 1;
}
} else {
strcpy (cmd, task.cmd);
}
}
if (match && opt_pattern) {
if (regexec (preg, cmd, 0, NULL, 0) != 0)
match = 0;
}
if (match ^ opt_negate) { /* Exclusive OR is neat */
if (opt_newest) {
if (saved_start_time == task.start_time &&
saved_pid > task.XXXID)
continue;
saved_start_time = task.start_time;
saved_pid = task.XXXID;
matches = 0;
}
if (opt_oldest) {
if (saved_start_time == task.start_time &&
saved_pid < task.XXXID)
continue;
saved_start_time = task.start_time;
saved_pid = task.XXXID;
matches = 0;
}
if (matches == size) {
size = size * 5 / 4 + 4;
list = realloc(list, size * sizeof *list);
if (list == NULL)
exit (EXIT_FATAL);
}
if (opt_long) {
char buff[5096]; // FIXME
sprintf (buff, "%d %s", task.XXXID, cmd);
list[matches++].str = strdup (buff);
} else {
list[matches++].num = task.XXXID;
}
}
memset (&task, 0, sizeof (task));
}
closeproc (ptp);
*num = matches;
return list;
}
|