diff options
Diffstat (limited to 'coreutils/uname.c')
| -rw-r--r-- | coreutils/uname.c | 105 |
1 files changed, 72 insertions, 33 deletions
diff --git a/coreutils/uname.c b/coreutils/uname.c index e28285c44..8e51aa817 100644 --- a/coreutils/uname.c +++ b/coreutils/uname.c @@ -9,25 +9,43 @@ /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */ /* 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> + * + * GNU coreutils 6.10: + * Option: struct Example(s): + * utsname + * field: + * -s, --kernel-name sysname Linux + * -n, --nodename nodename localhost.localdomain + * -r, --kernel-release release 2.6.29 + * -v, --kernel-version version #1 SMP Sun Jan 11 20:52:37 EST 2009 + * -m, --machine machine x86_64 i686 + * -p, --processor (none) x86_64 i686 + * -i, --hardware-platform (none) x86_64 i386 + * NB: vanilla coreutils reports "unknown" -p and -i, + * x86_64 and i686/i386 shown above are Fedora's inventions. + * -o, --operating-system (none) GNU/Linux + * -a, --all: all of the above, in the order shown. + * If -p or -i is not known, don't show them + */ - -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 */ - -/* Further size reductions by Glenn McGrath and Manuel Novoa III. */ - -/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) +/* Busyboxed by Erik Andersen * - * Now does proper error checking on i/o. Plus some further space savings. + * Before 2003: Glenn McGrath and Manuel Novoa III + * Further size reductions. + * Mar 16, 2003: Manuel Novoa III (mjn3@codepoet.org) + * Now does proper error checking on i/o. Plus some further space savings. + * Jan 2009: + * Fix handling of -a to not print "unknown", add -o and -i support. */ #include <sys/utsname.h> @@ -35,17 +53,21 @@ typedef struct { struct utsname name; - char processor[8]; /* for "unknown" */ + char processor[sizeof(((struct utsname*)NULL)->machine)]; + char platform[sizeof(((struct utsname*)NULL)->machine)]; + char os[sizeof("GNU/Linux")]; } uname_info_t; -static const char options[] ALIGN1 = "snrvmpa"; +static const char options[] ALIGN1 = "snrvmpioa"; static const unsigned short utsname_offset[] = { - offsetof(uname_info_t, name.sysname), - offsetof(uname_info_t, name.nodename), - offsetof(uname_info_t, name.release), - offsetof(uname_info_t, name.version), - offsetof(uname_info_t, name.machine), - offsetof(uname_info_t, processor) + offsetof(uname_info_t, name.sysname), /* -s */ + offsetof(uname_info_t, name.nodename), /* -n */ + offsetof(uname_info_t, name.release), /* -r */ + offsetof(uname_info_t, name.version), /* -v */ + offsetof(uname_info_t, name.machine), /* -m */ + offsetof(uname_info_t, processor), /* -p */ + offsetof(uname_info_t, platform), /* -i */ + offsetof(uname_info_t, os), /* -o */ }; int uname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; @@ -55,6 +77,8 @@ int uname_main(int argc UNUSED_PARAM, char **argv) #if defined(__sparc__) && defined(__linux__) char *fake_sparc = getenv("FAKE_SPARC"); #endif + const char *unknown_str = "unknown"; + const char *fmt; const unsigned short *delta; char toprint; @@ -64,8 +88,9 @@ int uname_main(int argc UNUSED_PARAM, char **argv) bb_show_usage(); } - if (toprint & (1 << 6)) { /* -a => all opts on */ - toprint = 0x3f; + if (toprint & (1 << 8)) { /* -a => all opts on */ + toprint = (1 << 8) - 1; + unknown_str = ""; /* -a does not print unknown fields */ } if (toprint == 0) { /* no opts => -s (sysname) */ @@ -79,16 +104,30 @@ int uname_main(int argc UNUSED_PARAM, char **argv) strcpy(uname_info.name.machine, "sparc"); } #endif - - strcpy(uname_info.processor, "unknown"); + strcpy(uname_info.processor, unknown_str); + strcpy(uname_info.platform, unknown_str); + strcpy(uname_info.os, "GNU/Linux"); +#if 0 + /* Fedora does something like this */ + strcpy(uname_info.processor, uname_info.name.machine); + strcpy(uname_info.platform, uname_info.name.machine); + if (uname_info.platform[0] == 'i' + && uname_info.platform[1] + && uname_info.platform[2] == '8' + && uname_info.platform[3] == '6' + ) { + uname_info.platform[1] = '3'; + } +#endif delta = utsname_offset; + fmt = " %s" + 1; do { if (toprint & 1) { - /* printf would not be safe here */ - fputs((char *)(&uname_info) + *delta, stdout); - if (toprint > 1) { - bb_putchar(' '); + const char *p = (char *)(&uname_info) + *delta; + if (p[0]) { + printf(fmt, p); + fmt = " %s"; } } ++delta; |