The libvirt.c front-end can be compiled in 'pedantic' mode in which case it explicitly refuses operations with side-effects in read-only connections. When doing so, however, it was not recording any error message so feedback to the user was misleading / obsure. This patch adds an extra error code VIR_ERR_READ_ONLY which is used when an operation is denied due to a read only connection.

This patch also passes 'VIR_DRV_OPEN_QUIET' to the 'open' method so tell the XenD driver not complain if it fails to open a HV connection. This is because it was complaining whenever trying to open a test:///default connection.

Index: src/libvirt.c =================================================================== RCS file: /data/cvs/libvirt/src/libvirt.c,v retrieving revision 1.42 diff -c -r1.42 libvirt.c *** src/libvirt.c 11 Aug 2006 14:40:04 -0000 1.42 --- src/libvirt.c 16 Aug 2006 15:17:43 -0000 *************** *** 240,246 **** for (i = 0;i < MAX_DRIVERS;i++) { if ((virDriverTab[i] != NULL) && (virDriverTab[i]->open != NULL)) { ! res = virDriverTab[i]->open(ret, name, 0); /* * For a default connect to Xen make sure we manage to contact * all related drivers. --- 240,246 ---- for (i = 0;i < MAX_DRIVERS;i++) { if ((virDriverTab[i] != NULL) && (virDriverTab[i]->open != NULL)) { ! res = virDriverTab[i]->open(ret, name, VIR_DRV_OPEN_QUIET); /* * For a default connect to Xen make sure we manage to contact * all related drivers.