/* vi: set sw=4 ts=4: */ /* uname -- print system information Copyright (C) 1989-1999 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Option Example -s, --sysname SunOS -n, --nodename rocky8 -r, --release 4.0 -v, --version -m, --machine sun -a, --all SunOS rocky8 4.0 sun The default behavior is equivalent to `-s'. David MacKenzie <djm@gnu.ai.mit.edu> */ /* Busyboxed by Erik Andersen */ #include "internal.h" #include <stdio.h> #include <sys/types.h> #include <sys/utsname.h> #if defined (HAVE_SYSINFO) && defined (HAVE_SYS_SYSTEMINFO_H) # include <sys/systeminfo.h> #endif static const char uname_usage[] = "uname [OPTION]...\n\n" #ifndef BB_FEATURE_TRIVIAL_HELP "Print certain system information. With no OPTION, same as -s.\n\n" "Options:\n" "\t-a\tprint all information\n" "\t-m\tthe machine (hardware) type\n" "\t-n\tprint the machine's network node hostname\n" "\t-r\tprint the operating system release\n" "\t-s\tprint the operating system name\n" "\t-p\tprint the host processor type\n" "\t-v\tprint the operating system version\n" #endif ; static void print_element(unsigned int mask, char *element); /* Values that are bitwise or'd into `toprint'. */ /* Operating system name. */ #define PRINT_SYSNAME 1 /* Node name on a communications network. */ #define PRINT_NODENAME 2 /* Operating system release. */ #define PRINT_RELEASE 4 /* Operating system version. */ #define PRINT_VERSION 8 /* Machine hardware name. */ #define PRINT_MACHINE 16 /* Host processor type. */ #define PRINT_PROCESSOR 32 /* Mask indicating which elements of the name to print. */ static unsigned char toprint; int uname_main(int argc, char **argv) { struct utsname name; char processor[256]; #if defined(__sparc__) && defined(__linux__) char *fake_sparc = getenv("FAKE_SPARC"); #endif toprint = 0; /* Parse any options */ //fprintf(stderr, "argc=%d, argv=%s\n", argc, *argv); while (--argc > 0 && **(++argv) == '-') { while (*(++(*argv))) { switch (**argv) { case 's': toprint |= PRINT_SYSNAME; break; case 'n': toprint |= PRINT_NODENAME; break; case 'r': toprint |= PRINT_RELEASE; break; case 'v': toprint |= PRINT_VERSION; break; case 'm': toprint |= PRINT_MACHINE; break; case 'p': toprint |= PRINT_PROCESSOR; break; case 'a': toprint = (PRINT_SYSNAME | PRINT_NODENAME | PRINT_RELEASE | PRINT_PROCESSOR | PRINT_VERSION | PRINT_MACHINE); break; default: usage(uname_usage); } } } if (toprint == 0) toprint = PRINT_SYSNAME; if (uname(&name) == -1) perror("cannot get system name"); #if defined (HAVE_SYSINFO) && defined (SI_ARCHITECTURE) if (sysinfo(SI_ARCHITECTURE, processor, sizeof(processor)) == -1) perror("cannot get processor type"); } #else strcpy(processor, "unknown"); #endif #if defined(__sparc__) && defined(__linux__) if (fake_sparc != NULL && (fake_sparc[0] == 'y' || fake_sparc[0] == 'Y')) strcpy(name.machine, "sparc"); #endif print_element(PRINT_SYSNAME, name.sysname); print_element(PRINT_NODENAME, name.nodename); print_element(PRINT_RELEASE, name.release); print_element(PRINT_VERSION, name.version); print_element(PRINT_MACHINE, name.machine); print_element(PRINT_PROCESSOR, processor); exit(TRUE); } /* If the name element set in MASK is selected for printing in `toprint', print ELEMENT; then print a space unless it is the last element to be printed, in which case print a newline. */ static void print_element(unsigned int mask, char *element) { if (toprint & mask) { toprint &= ~mask; printf("%s%c", element, toprint ? ' ' : '\n'); } }