0a6af9b0a4
Make parser of shmctl syscall print struct shmid_ds. * ipc_shmctl.c (shmid_ds_t): New typedef. Mpersify it. (print_shmid_ds): New function. Use shmid_ds_t. (sys_shmctl): Use print_shmid_ds. * tests/ipc_shm.c: Update for struct shmid_ds support.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
#include <stdio.h>
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#include <errno.h>
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#include <sys/shm.h>
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int
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main(void)
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{
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int rc, id;
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struct shmid_ds ds;
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id = shmget(IPC_PRIVATE, 1, 0600);
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if (id < 0)
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return 77;
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printf("shmget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
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if (shmctl(id, IPC_STAT, &ds))
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goto fail;
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printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, \\{shm_perm=\\{uid=%u, gid=%u, "
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"mode=%#o, key=%u, cuid=%u, cgid=%u\\}, shm_segsz=%u, shm_cpid=%u, "
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"shm_lpid=%u, shm_nattch=%u, shm_atime=%u, shm_dtime=%u, "
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"shm_ctime=%u\\}\\) += 0\n",
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id, (unsigned) ds.shm_perm.uid, (unsigned) ds.shm_perm.gid,
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(unsigned) ds.shm_perm.mode, (unsigned) ds.shm_perm.__key,
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(unsigned) ds.shm_perm.cuid, (unsigned) ds.shm_perm.cgid,
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(unsigned) ds.shm_segsz, (unsigned) ds.shm_cpid,
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(unsigned) ds.shm_lpid, (unsigned) ds.shm_nattch,
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(unsigned) ds.shm_atime, (unsigned) ds.shm_dtime,
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(unsigned) ds. shm_ctime);
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int max = shmctl(0, SHM_INFO, &ds);
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if (max < 0)
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goto fail;
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printf("shmctl\\(0, (IPC_64\\|)?SHM_INFO, %p\\) += %d\n", &ds, max);
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rc = shmctl(id, SHM_STAT, &ds);
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if (rc != id) {
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/*
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* In linux < v2.6.24-rc1 the first argument must be
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* an index in the kernel's internal array.
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*/
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if (-1 != rc || EINVAL != errno)
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goto fail;
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printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += -1 EINVAL \\(Invalid argument\\)\n", id, &ds);
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} else {
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printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += %d\n", id, &ds, id);
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}
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rc = 0;
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done:
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if (shmctl(id, IPC_RMID, NULL) < 0)
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return 1;
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printf("shmctl\\(%d, (IPC_64\\|)?IPC_RMID, NULL\\) += 0\n", id);
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return rc;
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fail:
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rc = 1;
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goto done;
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}
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