diff options
Diffstat (limited to 'proc/readproc.c')
| -rw-r--r-- | proc/readproc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/proc/readproc.c b/proc/readproc.c index eb3504d..4420364 100644 --- a/proc/readproc.c +++ b/proc/readproc.c @@ -1225,7 +1225,10 @@ static proc_t *simple_readproc(PROCTAB *restrict const PT, proc_t *restrict cons if (flags & PROC_FILLAUTOGRP) // value the 2 autogroup fields autogroup_fill(path, p); - if (rc == 0) return p; + // openproc() ensured that a ppid will be present when needed ... + if (rc == 0) + return (PT->hide_kernel && (p->ppid == 2 || p->tid == 2)) ? NULL : p; + errno = ENOMEM; next_proc: return NULL; @@ -1514,10 +1517,13 @@ PROCTAB *openproc(unsigned flags, ...) { va_list ap; struct stat sbuf; static __thread int did_stat; + static __thread int hide_kernel = -1; PROCTAB *PT = calloc(1, sizeof(PROCTAB)); if (!PT) return NULL; + if (hide_kernel < 0) + hide_kernel = (NULL != getenv("LIBPROC_HIDE_KERNEL")); if (!did_stat){ task_dir_missing = stat("/proc/self/task", &sbuf); did_stat = 1; @@ -1547,6 +1553,13 @@ PROCTAB *openproc(unsigned flags, ...) { } va_end(ap); + if (hide_kernel > 0) { + PT->hide_kernel = 1; + // we'll need the ppid, ensure it's obtained via cheapest means ... + if (!(PT->flags & (PROC_FILLSTAT | PROC_FILLSTATUS))) + PT->flags |= PROC_FILLSTAT; + } + if (!src_buffer && !(src_buffer = malloc(MAX_BUFSZ))) { closedir(PT->procfs); |