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Message-Id: <1346864553-30059-4-git-send-email-kys@microsoft.com>
Date: Wed, 5 Sep 2012 10:02:33 -0700
From: "K. Y. Srinivasan" <kys@...rosoft.com>
To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
ben@...adent.org.uk, thozza@...hat.com, dcbw@...hat.com
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>, stable@...r.kernel.org
Subject: [PATCH 4/4] 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.
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Cc: stable@...r.kernel.org
---
tools/hv/hv_kvp_daemon.c | 50 +++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 3922abc..77a8413 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -465,15 +465,59 @@ 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"))
+ os_name = strdup(value);
+ else if (!strcmp(buf, "VERSION_ID"))
+ os_major = strdup(value);
+ }
+ 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.
--
1.7.4.1
--
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