[libvirt] [PATCH 3/5] virstring: Introduce virVasprintfNOOM and make virVasprintf report OOM

[Daniel P. Berrange]

On Tue, Apr 02, 2013 at 04:22:56PM +0200, Michal Privoznik wrote:
> ---
>  src/libvirt_private.syms |  1 +
>  src/qemu/qemu_domain.c   |  4 +---
>  src/util/viraudit.c      |  2 +-
>  src/util/vircommand.c    |  4 ++--
>  src/util/virerror.c      |  2 +-
>  src/util/virlog.c        |  2 +-
>  src/util/virstring.c     | 22 ++++++++++++++++++++--
>  src/util/virstring.h     |  3 +++
>  8 files changed, 30 insertions(+), 10 deletions(-)

This patch is incomplete, missing a number of places which don't report
errors on enomem. There are probably others that this simple grep does
not detect too.


[berrange at avocado libvirt]$ git grep --after 1 virAsprintf  | grep --before 1 ENOMEM
src/util/vircgroup.c:    if (virAsprintf(&strval, "%llu", value) == -1)
src/util/vircgroup.c-        return -ENOMEM;
--
src/util/vircgroup.c:    if (virAsprintf(&strval, "%lld", value) == -1)
src/util/vircgroup.c-        return -ENOMEM;
--
src/util/vircgroup.c:        if (virAsprintf(&path, "%s/%s", grppath, ent->d_name) == -1) {
src/util/vircgroup.c-            rc = -ENOMEM;
--
src/util/vircgroup.c:    if (virAsprintf(&path, "%s/%s", rootgrp->path, name) < 0) {
src/util/vircgroup.c-        rc = -ENOMEM;
--
src/util/vircgroup.c:    if (virAsprintf(&path, "%s/%s", driver->path, name) < 0)
src/util/vircgroup.c-        return -ENOMEM;
--
src/util/vircgroup.c:    if (virAsprintf(&path, "%s/vcpu%d", driver->path, vcpuid) < 0)
src/util/vircgroup.c-        return -ENOMEM;
--
src/util/vircgroup.c:    if (virAsprintf(&path, "%s/emulator", driver->path) < 0)
src/util/vircgroup.c-        return -ENOMEM;
--
src/util/vircgroup.c:        if (virAsprintf(&subpath, "%s/%s", group->path, ent->d_name) < 0) {
src/util/vircgroup.c-            rc = -ENOMEM;
--
src/util/virdnsmasq.c:    if (virAsprintf(&tmp, "%s.new", path) < 0)
src/util/virdnsmasq.c-        return -ENOMEM;
--
src/util/virdnsmasq.c:    if (virAsprintf(&tmp, "%s.new", path) < 0)
src/util/virdnsmasq.c-        return -ENOMEM;
--
src/util/virpidfile.c:    if (virAsprintf(&procPath, "/proc/%lld/exe", (long long)retPid) < 0) {
src/util/virpidfile.c-        ret = -ENOMEM;
[berrange at avocado libvirt]$ git grep --after 1 ALLOC  | grep --before 1 ENOMEM
src/libvirt.c:    if (VIR_ALLOC(lock) < 0)
src/libvirt.c-        return ENOMEM;
--
src/node_device/node_device_hal.c:        if (VIR_ALLOC(caps) < 0)
src/node_device/node_device_hal.c-            return ENOMEM;
--
src/util/viralloc.c:    if (VIR_ALLOC_VAR_OVERSIZED(struct_size, count, element_size)) {
src/util/viralloc.c-        errno = ENOMEM;
--
src/util/vircgroup.c:    if (VIR_ALLOC((*group)) != 0) {
src/util/vircgroup.c-        rc = -ENOMEM;
--
src/util/vircommand.c:    if (VIR_REALLOC_N(*set, *set_size + 1) < 0) {
src/util/vircommand.c-        return ENOMEM;
--
src/util/virthreadpthread.c:    if (VIR_ALLOC(args) < 0) {
src/util/virthreadpthread.c-        err = ENOMEM;



Daniel
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