[libvirt] [PATCHv2 4/5] openvz: Add openvzVEGetStringParam

to retrieve a VEs config parameters as a single string. This will be used by the upcoming domainGetHostname implementation. --- src/libvirt_openvz.syms | 2 +- src/openvz/openvz_util.c | 32 ++++++++++++++++++++++++++++++++ src/openvz/openvz_util.h | 1 + 3 files changed, 34 insertions(+), 1 deletion(-) diff --git a/src/libvirt_openvz.syms b/src/libvirt_openvz.syms index 11c5587..1993eb5 100644 --- a/src/libvirt_openvz.syms +++ b/src/libvirt_openvz.syms @@ -1,7 +1,7 @@ # # These symbols are dependent upon --with-openvz via WITH_OPENVZ # - openvzReadConfigParam; openvzReadNetworkConf; openvzLocateConfFile; +openvzVEGetStringParam; diff --git a/src/openvz/openvz_util.c b/src/openvz/openvz_util.c index 61b55de..2091b8e 100644 --- a/src/openvz/openvz_util.c +++ b/src/openvz/openvz_util.c @@ -26,6 +26,9 @@ #include "internal.h" #include "virterror_internal.h" +#include "command.h" +#include "datatypes.h" +#include "memory.h" #include "openvz_conf.h" #include "openvz_util.h" @@ -49,3 +52,32 @@ openvzKBPerPages(void) } return kb_per_pages; } + +char* +openvzVEGetStringParam(virDomainPtr domain, const char* param) +{ + int len; + char *output = NULL; + + virCommandPtr cmd = virCommandNewArgList(VZLIST, + "-o", + param, + domain->name, + "-H" , NULL); + + virCommandSetOutputBuffer(cmd, &output); + if (virCommandRun(cmd, NULL) < 0) { + VIR_FREE(output); + /* virCommandRun sets the virError */ + goto out; + } + + /* delete trailing newline */ + len = strlen(output); + if (len && output[len - 1] == '\n') + output[len - 1] = '\0'; + +out: + virCommandFree(cmd); + return output; +} diff --git a/src/openvz/openvz_util.h b/src/openvz/openvz_util.h index a0d9bbb..6a991f3 100644 --- a/src/openvz/openvz_util.h +++ b/src/openvz/openvz_util.h @@ -24,5 +24,6 @@ # define OPENVZ_UTIL_H long openvzKBPerPages(void); +char* openvzVEGetStringParam(virDomainPtr dom, const char *param); #endif -- 1.7.10.4