diff options
Diffstat (limited to 'sys-utils/ipcs.c')
| -rw-r--r-- | sys-utils/ipcs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys-utils/ipcs.c b/sys-utils/ipcs.c index 4f3d23d90..3c4e5df0e 100644 --- a/sys-utils/ipcs.c +++ b/sys-utils/ipcs.c @@ -198,6 +198,7 @@ static void do_shm (char format, int unit) case LIMITS: { struct ipc_limits lim; + uint64_t tmp, pgsz = getpagesize(); if (ipc_shm_get_limits(&lim)) { printf (_("unable to fetch shared memory limits\n")); @@ -207,9 +208,14 @@ static void do_shm (char format, int unit) printf (_("max number of segments = %ju\n"), lim.shmmni); ipc_print_size(unit == IPC_UNIT_DEFAULT ? IPC_UNIT_KB : unit, _("max seg size"), lim.shmmax, "\n", 0); + + tmp = (uint64_t) lim.shmall * pgsz; + /* overflow handling, at least we don't print ridiculous small values */ + if (lim.shmall != 0 && tmp / lim.shmall != pgsz) { + tmp = UINT64_MAX - (UINT64_MAX % pgsz); + } ipc_print_size(unit == IPC_UNIT_DEFAULT ? IPC_UNIT_KB : unit, - _("max total shared memory"), - (uint64_t) lim.shmall * getpagesize(), "\n", 0); + _("max total shared memory"), tmp, "\n", 0); ipc_print_size(unit == IPC_UNIT_DEFAULT ? IPC_UNIT_BYTES : unit, _("min seg size"), lim.shmmin, "\n", 0); return; |