projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f1811a66 JH |
1 | /* |
| 2 | * uname - print system information. Jeff Comstock - Bloomington, MN USA 1992 | |
| 3 | * Usage: uname [-asnrvm] | |
| 4 | * -s prints system name | |
| 5 | * -n prints nodename | |
| 6 | * -r prints software release | |
| 7 | * -v prints os version | |
| 8 | * -m prints machine name | |
| 9 | * -a prinst all the above information | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef lint | |
| b9269098 | 13 | static char rcsid[] = "$Id: uname.c,v 1.2 1994/01/24 02:14:26 rgrimes Exp $"; |
| f1811a66 JH |
14 | #endif /* not lint */ |
| 15 | ||
| 16 | #include <stdio.h> | |
| 17 | #include <unistd.h> | |
| 18 | #include <sysexits.h> | |
| 19 | #include <sys/utsname.h> | |
| 20 | ||
| 21 | #define SYSNAME 0 | |
| 22 | #define NODENAME 1 | |
| 23 | #define RELEASE 2 | |
| 24 | #define VERSION 3 | |
| 25 | #define MACHINE 4 | |
| 26 | ||
| 27 | struct utsname u; | |
| 28 | ||
| 29 | struct utstab { | |
| 30 | char *str; | |
| 31 | int requested; | |
| 32 | } uttab[] = { | |
| 33 | { u.sysname, 0 }, | |
| 34 | { u.nodename, 0 }, | |
| 35 | { u.release, 0 }, | |
| 36 | { u.version, 0 }, | |
| 37 | { u.machine, 0 } | |
| 38 | }; | |
| 39 | ||
| 40 | main(int argc, char **argv) { | |
| 41 | char *opts="amnrsv"; | |
| 42 | register int c,space, all=0; | |
| 43 | ||
| 44 | if ( ! uname(&u) ) { | |
| 45 | if ( argc == 1 ) { | |
| b9269098 | 46 | puts(u.sysname); |
| f1811a66 JH |
47 | } else { |
| 48 | while ( (c = getopt(argc,argv,opts)) != -1 ) { | |
| 49 | switch ( c ) { | |
| 50 | case 'a' : all++; | |
| 51 | break; | |
| 52 | case 'm' : uttab[MACHINE].requested++; | |
| 53 | break; | |
| 54 | case 'n' : uttab[NODENAME].requested++; | |
| 55 | break; | |
| 56 | case 'r' : uttab[RELEASE].requested++; | |
| 57 | break; | |
| 58 | case 's' : uttab[SYSNAME].requested++; | |
| 59 | break; | |
| 60 | case 'v' : uttab[VERSION].requested++; | |
| 61 | break; | |
| 62 | } | |
| 63 | } | |
| 64 | space=0; | |
| 65 | for(c=0; c <= MACHINE; c++) { | |
| 66 | if ( uttab[c].requested || all ) { | |
| 67 | if ( space ) | |
| 68 | putchar(' '); | |
| 69 | printf("%s", uttab[c].str); | |
| 70 | space++; | |
| 71 | } | |
| 72 | } | |
| 73 | puts(""); | |
| 74 | } | |
| 75 | exit (EX_OK); | |
| 76 | } else { | |
| 77 | perror("uname"); | |
| 78 | exit (EX_OSERR); | |
| 79 | } | |
| 80 | } |