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| author | Eric S. Raymond <esr@thyrsus.com> | 2015-02-09 22:51:18 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2015-02-09 22:51:18 -0500 |
| commit | facc08793683c63cc658d0ae549f3561411f0a08 (patch) | |
| tree | f22ff00cf1dd2f7df28c325b40b0f0783ecee463 /libgps_shm.c | |
| parent | 5b4af8cc002773058ad744f9c2f9975284b09224 (diff) | |
| download | gpsd-facc08793683c63cc658d0ae549f3561411f0a08.tar.gz | |
Implement and document GPSD_SHM_KEY environment variable.
Diffstat (limited to 'libgps_shm.c')
| -rw-r--r-- | libgps_shm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libgps_shm.c b/libgps_shm.c index c489af09..5d37f628 100644 --- a/libgps_shm.c +++ b/libgps_shm.c @@ -41,12 +41,12 @@ struct privdata_t int gps_shm_open(/*@out@*/struct gps_data_t *gpsdata) /* open a shared-memory connection to the daemon */ { - int shmid; + int shmid = getenv("GPSD_SHM_KEY") ? atoi(getenv("GPSD_SHM_KEY")) : GPSD_KEY; libgps_debug_trace((DEBUG_CALLS, "gps_shm_open()\n")); gpsdata->privdata = NULL; - shmid = shmget((key_t)GPSD_KEY, sizeof(struct gps_data_t), 0); + shmid = shmget((key_t)shmid, sizeof(struct gps_data_t), 0); if (shmid == -1) { /* daemon isn't running or failed to create shared segment */ return -1; |