[xsrc/trunk]: xsrc/external/mit/libpciaccess/dist/src If O_RDWR fails, try O_...

[maya <maya%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/xsrc/rev/5fd2ebd6763f
branches:  trunk
changeset: 9998:5fd2ebd6763f
user:      maya <maya%NetBSD.org@localhost>
date:      Fri Oct 26 11:17:33 2018 +0000

description:
If O_RDWR fails, try O_RDONLY.

Lets me run unprivileged X.

diffstat:

 external/mit/libpciaccess/dist/src/netbsd_pci.c |  5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diffs (22 lines):

diff -r 1fbfbb884ca7 -r 5fd2ebd6763f external/mit/libpciaccess/dist/src/netbsd_pci.c
--- a/external/mit/libpciaccess/dist/src/netbsd_pci.c   Fri Oct 26 11:13:29 2018 +0000
+++ b/external/mit/libpciaccess/dist/src/netbsd_pci.c   Fri Oct 26 11:17:33 2018 +0000
@@ -924,6 +924,9 @@
        nbuses = 0;
        snprintf(netbsd_devname, 32, "/dev/pci%d", nbuses);
        pcifd = open(netbsd_devname, O_RDWR | O_CLOEXEC);
+       if (pcifd == -1)
+               pcifd = open(netbsd_devname, O_RDONLY | O_CLOEXEC);
+
        while (pcifd > 0) {
                ioctl(pcifd, PCI_IOC_BUSINFO, &businfo);
                buses[nbuses].fd = pcifd;
@@ -946,6 +949,8 @@
                }
                snprintf(netbsd_devname, 32, "/dev/pci%d", nbuses);
                pcifd = open(netbsd_devname, O_RDWR);
+               if (pcifd == -1)
+                       pcifd = open(netbsd_devname, O_RDONLY | O_CLOEXEC);
        }
 
        pci_sys->num_devices = ndevs;