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Diffstat (limited to 'uname.c')
| -rw-r--r-- | uname.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/uname.c b/uname.c new file mode 100644 index 000000000..f7e2291a8 --- /dev/null +++ b/uname.c @@ -0,0 +1,156 @@ +/* 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 <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/utsname.h> + +#if defined (HAVE_SYSINFO) && defined (HAVE_SYS_SYSTEMINFO_H) +# include <sys/systeminfo.h> +#endif +#include "busybox.h" + +static void print_element(unsigned int mask, char *element); + +/* Values that are bitwise or'd into `toprint'. */ +/* Operating system name. */ +static const int PRINT_SYSNAME = 1; + +/* Node name on a communications network. */ +static const int PRINT_NODENAME = 2; + +/* Operating system release. */ +static const int PRINT_RELEASE = 4; + +/* Operating system version. */ +static const int PRINT_VERSION = 8; + +/* Machine hardware name. */ +static const int PRINT_MACHINE = 16; + + /* Host processor type. */ +static const int 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: + show_usage(); + } + } + } + + if (toprint == 0) + toprint = PRINT_SYSNAME; + + if (uname(&name) == -1) + perror_msg("cannot get system name"); + +#if defined (HAVE_SYSINFO) && defined (SI_ARCHITECTURE) + if (sysinfo(SI_ARCHITECTURE, processor, sizeof(processor)) == -1) + perror_msg("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); + + return EXIT_SUCCESS; +} + +/* 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'); + } +} |