2 * uname - print system information
4 * usage: uname [-amnrsv]
11 #include "bashtypes.h"
13 #if defined (HAVE_UNAME)
14 # include <sys/utsname.h>
29 #include "bashgetopt.h"
31 #define FLAG_SYSNAME 0x01 /* -s */
32 #define FLAG_NODENAME 0x02 /* -n */
33 #define FLAG_RELEASE 0x04 /* -r */
34 #define FLAG_VERSION 0x08 /* -v */
35 #define FLAG_MACHINE 0x10 /* -m, -p */
45 static int uname_flags;
51 struct utsname uninfo;
54 reset_internal_getopt ();
55 while ((opt = internal_getopt (list, "amnprsv")) != -1)
60 uname_flags |= FLAG_ALL;
64 uname_flags |= FLAG_MACHINE;
67 uname_flags |= FLAG_NODENAME;
70 uname_flags |= FLAG_RELEASE;
73 uname_flags |= FLAG_SYSNAME;
76 uname_flags |= FLAG_VERSION;
92 uname_flags = FLAG_SYSNAME;
94 /* Only ancient systems will not have uname(2). */
96 if (uname (&uninfo) < 0)
98 builtin_error ("cannot get system name: %s", strerror (errno));
99 return (EXECUTION_FAILURE);
102 builtin_error ("cannot get system information: uname(2) not available");
103 return (EXECUTION_FAILURE);
106 uprint (FLAG_SYSNAME, uninfo.sysname);
107 uprint (FLAG_NODENAME, uninfo.nodename);
108 uprint (FLAG_RELEASE, uninfo.release);
109 uprint (FLAG_VERSION, uninfo.version);
110 uprint (FLAG_MACHINE, uninfo.machine);
112 return (EXECUTION_SUCCESS);
120 if (uname_flags & flag)
122 uname_flags &= ~flag;
123 printf ("%s%c", info, uname_flags ? ' ' : '\n');
127 char *uname_doc[] = {
128 "display information about the system",
132 struct builtin uname_struct = {