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crtools: split cr-dump.c in two files

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Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2015-08-06 12:37:26 +03:00
committed by Pavel Emelyanov
parent 3d1e8c6883
commit 2f172c8b24
6 changed files with 409 additions and 379 deletions
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61
proc_parse.c
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@@ -2077,3 +2077,64 @@ bool proc_status_creds_eq(struct proc_status_creds *o1, struct proc_status_creds
{
return memcmp(o1, o2, sizeof(struct proc_status_creds)) == 0;
}
int parse_children(pid_t pid, pid_t **_c, int *_n)
{
pid_t *ch = NULL;
int nr = 0;
DIR *dir;
struct dirent *de;
dir = opendir_proc(pid, "task");
if (dir == NULL)
return -1;
while ((de = readdir(dir))) {
int fd, len;
char *pos;
if (dir_dots(de))
continue;
fd = open_proc(pid, "task/%s/children", de->d_name);
if (fd < 0)
goto err;
len = read(fd, buf, BUF_SIZE);
close(fd);
if (len < 0)
goto err;
buf[len] = '\0';
pos = buf;
while (1) {
pid_t val, *tmp;
val = strtol(pos, &pos, 0);
if (!val) {
BUG_ON(*pos != '\0');
break;
}
tmp = xrealloc(ch, (nr + 1) * sizeof(pid_t));
if (!tmp)
goto err;
ch = tmp;
ch[nr] = val;
nr++;
pos++; /* space goes after each pid */
}
}
*_c = ch;
*_n = nr;
closedir(dir);
return 0;
err:
closedir(dir);
xfree(ch);
return -1;
}