[libvirt] [PATCH 1/4] Add virRunWithHook.
Similar to virExecWithHook, but waits for child to exit. Useful for
doing things like setuid after the fork but before the exec.
---
src/util/util.c | 25 ++++++++++++++++++-------
src/util/util.h | 3 +++
2 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/src/util/util.c b/src/util/util.c
index 67fae00..578d12b 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -804,9 +804,11 @@ error:
* only if the command could not be run.
*/
int
-virRun(virConnectPtr conn,
- const char *const*argv,
- int *status) {
+virRunWithHook(virConnectPtr conn,
+ const char *const*argv,
+ virExecHook hook,
+ void *data,
+ int *status) {
pid_t childpid;
int exitstatus, execret, waitret;
int ret = -1;
@@ -823,7 +825,7 @@ virRun(virConnectPtr conn,
if ((execret = __virExec(conn, argv, NULL, NULL,
&childpid, -1, &outfd, &errfd,
- VIR_EXEC_NONE, NULL, NULL, NULL)) < 0) {
+ VIR_EXEC_NONE, hook, data, NULL)) < 0) {
ret = execret;
goto error;
}
@@ -879,9 +881,11 @@ virRun(virConnectPtr conn,
#else /* __MINGW32__ */
int
-virRun(virConnectPtr conn,
- const char *const *argv ATTRIBUTE_UNUSED,
- int *status)
+virRunWithHook(virConnectPtr conn,
+ const char *const *argv ATTRIBUTE_UNUSED,
+ virExecHook hook ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED,
+ int *status)
{
if (status)
*status = ENOTSUP;
@@ -907,6 +911,13 @@ virExec(virConnectPtr conn,
#endif /* __MINGW32__ */
+int
+virRun(virConnectPtr conn,
+ const char *const*argv,
+ int *status) {
+ return virRunWithHook(conn, argv, NULL, NULL, status);
+}
+
/* Like gnulib's fread_file, but read no more than the specified maximum
number of bytes. If the length of the input is <= max_len, and
upon error while reading that data, it works just like fread_file. */
diff --git a/src/util/util.h b/src/util/util.h
index d556daa..5e70038 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -81,6 +81,9 @@ int virExec(virConnectPtr conn,
int *errfd,
int flags) ATTRIBUTE_RETURN_CHECK;
int virRun(virConnectPtr conn, const char *const*argv, int *status)
ATTRIBUTE_RETURN_CHECK;
+int virRunWithHook(virConnectPtr conn, const char *const*argv,
+ virExecHook hook, void *data,
+ int *status) ATTRIBUTE_RETURN_CHECK;
int virFileReadLimFD(int fd, int maxlen, char **buf) ATTRIBUTE_RETURN_CHECK;
--
1.6.6