diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2012-09-07 00:32:14 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-11 03:43:32 +0400 |
| commit | 44c8b25fb3b4b67442426abdc2371e750f7a393e (patch) | |
| tree | de374c871cabe327c92b4aa98f7a74e99302507a /tools/hv/hv_kvp_daemon.c | |
| parent | 436473bc2173499ae274d0f50111d1e355006caf (diff) | |
| download | linux-44c8b25fb3b4b67442426abdc2371e750f7a393e.tar.xz | |
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/hv_kvp_daemon.c')
| -rw-r--r-- | tools/hv/hv_kvp_daemon.c | 59 |
1 files changed, 55 insertions, 4 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 3922abc0daef..5959affd8820 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: |