diff options
Diffstat (limited to 'libgamma_quartz_cg_partition_initialise.c')
| -rw-r--r-- | libgamma_quartz_cg_partition_initialise.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/libgamma_quartz_cg_partition_initialise.c b/libgamma_quartz_cg_partition_initialise.c index 80fb4fc..ff77ba0 100644 --- a/libgamma_quartz_cg_partition_initialise.c +++ b/libgamma_quartz_cg_partition_initialise.c @@ -36,16 +36,24 @@ libgamma_quartz_cg_partition_initialise(struct libgamma_partition_state *restric * of CRTC:s and ask for more if we got as many as we asked for. */ for (;;) { /* Ask for CRTC ID:s */ - if (CGGetOnlineDisplayList(cap, crtcs, &n) != kCGErrorSuccess) - return free(crtcs), LIBGAMMA_LIST_CRTCS_FAILED; + if (CGGetOnlineDisplayList(cap, crtcs, &n) != kCGErrorSuccess) { + free(crtcs); + return LIBGAMMA_LIST_CRTCS_FAILED; + } /* If we did not get as many as we asked for then we have all */ if (n < cap) break; /* Increase the number CRTC ID:s to ask for */ - if (cap > UINT32_MAX / 2) /* We could also test ~0, but it is still too many */ - return free(crtcs), LIBGAMMA_IMPOSSIBLE_AMOUNT; + if (cap > UINT32_MAX / 2) { /* We could also test ~0, but it is still too many */ + free(crtcs); + return LIBGAMMA_IMPOSSIBLE_AMOUNT; + } cap <<= 1; /* Grow the array of CRTC ID:s so that it can fit all we are asking for */ + if ((size_t)cap > SIZE_MAX / sizeof(CGDirectDisplayID)) { + errno = ENOMEM; + return LIBGAMMA_ERRNO_SET; + } crtcs = realloc(crtcs_old = crtcs, (size_t)cap * sizeof(CGDirectDisplayID)); if (!crtcs) { free(crtcs_old); |