Initial revision

libproc/version.c

@@ -0,0 +1,39 @@
+/* Suite version information for procps utilities
+ * Copyright (c) 1995 Martin Schulze <joey@infodrom.north.de>
+ * Ammended by cblake to only export the function symbol.
+ */
+#include <stdio.h>
+
+#ifdef MINORVERSION
+char procps_version[] = "procps version " VERSION "." SUBVERSION "." MINORVERSION;
+#else
+char procps_version[] = "procps version " VERSION "." SUBVERSION;
+#endif
+
+void display_version(void) {
+    fprintf(stdout, "%s\n", procps_version);
+}
+
+/* Linux kernel version information for procps utilities
+ * Copyright (c) 1996 Charles Blake <cblake@bbn.com>
+ */
+#include <sys/utsname.h>
+
+#define LINUX_VERSION(x,y,z)   (0x10000*(x) + 0x100*(y) + z)
+
+int linux_version_code = 0;
+
+void set_linux_version(void) {
+    static struct utsname uts;
+    int x = 0, y = 0, z = 0;	/* cleared in case sscanf() < 3 */
+    
+    if (linux_version_code) return;
+    if (uname(&uts) == -1)	/* failure most likely implies impending death */
+	exit(1);
+    if (sscanf(uts.release, "%d.%d.%d", &x, &y, &z) < 3)
+	fprintf(stderr,		/* *very* unlikely to happen by accident */
+		"Non-standard uts for running kernel:\n"
+		"release %s=%d.%d.%d gives version code %d\n",
+		uts.release, x, y, z, LINUX_VERSION(x,y,z));
+    linux_version_code = LINUX_VERSION(x, y, z);
+}