Get OS name from /etc/os-release

3 files changed, 51 insertions, 1 deletions

diff --git a/src/cmumble.c b/src/cmumble.c
index ca8830f..0246789 100644
--- a/src/cmumble.c
+++ b/src/cmumble.c
@@ -292,8 +292,9 @@ cmumble_protocol_init(struct cmumble *cm)
 	cmumble_init_version(&version);
 	version.version = 0x010203;
 	version.release = PACKAGE_STRING;
-	version.os = "Gentoo/Linux";
+	version.os = cmumble_get_os_name();
 	cmumble_send_version(cm, &version);
+	g_free(version.os);
 
 	cmumble_init_authenticate(&authenticate);
 	authenticate.username = (char *) cm->user_name;
diff --git a/src/util.c b/src/util.c
index b2549af..1f6fd41 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1,4 +1,7 @@
 #include "util.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 #include <glib.h>
 
 gpointer
@@ -16,3 +19,46 @@ cmumble_find_by_id(GList *list, gsize member_offset, guint id)
 
 	return el;
 }
+
+gchar *
+cmumble_get_os_name(void)
+{
+	FILE *f;
+	char *line = NULL;
+	char *os = NULL, *value, *end;
+	size_t key_len = strlen("PRETTY_NAME=");
+	size_t n;
+
+	f = fopen("/etc/os-release", "r");
+	if (f == NULL)
+		return NULL;
+
+	while (getline(&line, &n, f) != -1) {
+		if (strncmp("PRETTY_NAME=", line, key_len) == 0 && (n - key_len) > 1) {
+			value = &line[key_len];
+			if (strlen(value) == 0)
+				continue;
+
+			end = &value[strlen(value) - 1];
+			if (*end == '\n')
+				*end-- = '\0';
+
+			if (strlen(value) < 2)
+				continue;
+
+			if (value[0] == '"')
+				value++;
+
+			if (*end == '"')
+				*end = '\0';
+
+			os = strdup(value);
+			goto out;
+		}
+	}
+
+out:
+	free(line);
+	fclose(f);
+	return os;
+}
diff --git a/src/util.h b/src/util.h
index 6019fe5..e2d58c6 100644
--- a/src/util.h
+++ b/src/util.h
@@ -7,6 +7,9 @@
 gpointer
 cmumble_find_by_id(GList *list, gsize member_offset, guint id);
 
+char *
+cmumble_get_os_name(void);
+
 static inline struct cmumble_user *
 find_user(struct cmumble *cm, uint32_t session_id)
 {