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authorBen Hutchings <ben@decadent.org.uk>2012-09-06 20:32:14 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-10 23:43:32 (GMT)
commit44c8b25fb3b4b67442426abdc2371e750f7a393e (patch)
treede374c871cabe327c92b4aa98f7a74e99302507a /tools/hv
parent436473bc2173499ae274d0f50111d1e355006caf (diff)
tools/hv: Parse /etc/os-release
There is a new convention, used by systemd and supported by most distributions, to put basic OS release information in /etc/os-release. Added some additional error checking on strdup() Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/hv')
-rw-r--r--tools/hv/hv_kvp_daemon.c59
1 files changed, 55 insertions, 4 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 3922abc..5959aff 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -454,6 +454,7 @@ void kvp_get_os_info(void)
uname(&uts_buf);
os_build = uts_buf.release;
+ os_name = uts_buf.sysname;
processor_arch = uts_buf.machine;
/*
@@ -465,20 +466,70 @@ void kvp_get_os_info(void)
if (p)
*p = '\0';
+ /*
+ * Parse the /etc/os-release file if present:
+ * http://www.freedesktop.org/software/systemd/man/os-release.html
+ */
+ file = fopen("/etc/os-release", "r");
+ if (file != NULL) {
+ while (fgets(buf, sizeof(buf), file)) {
+ char *value, *q;
+
+ /* Ignore comments */
+ if (buf[0] == '#')
+ continue;
+
+ /* Split into name=value */
+ p = strchr(buf, '=');
+ if (!p)
+ continue;
+ *p++ = 0;
+
+ /* Remove quotes and newline; un-escape */
+ value = p;
+ q = p;
+ while (*p) {
+ if (*p == '\\') {
+ ++p;
+ if (!*p)
+ break;
+ *q++ = *p++;
+ } else if (*p == '\'' || *p == '"' ||
+ *p == '\n') {
+ ++p;
+ } else {
+ *q++ = *p++;
+ }
+ }
+ *q = 0;
+
+ if (!strcmp(buf, "NAME")) {
+ p = strdup(value);
+ if (!p)
+ break;
+ os_name = p;
+ } else if (!strcmp(buf, "VERSION_ID")) {
+ p = strdup(value);
+ if (!p)
+ break;
+ os_major = p;
+ }
+ }
+ fclose(file);
+ return;
+ }
+
+ /* Fallback for older RH/SUSE releases */
file = fopen("/etc/SuSE-release", "r");
if (file != NULL)
goto kvp_osinfo_found;
file = fopen("/etc/redhat-release", "r");
if (file != NULL)
goto kvp_osinfo_found;
- /*
- * Add code for other supported platforms.
- */
/*
* We don't have information about the os.
*/
- os_name = uts_buf.sysname;
return;
kvp_osinfo_found:

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