From 2f0649f6fe411d7e07c8d56cf8ea56db53536da8 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:06:04 +0200 Subject: Adding upstream version 2.0.13. Signed-off-by: Daniel Baumann --- usr/utils/uname.c | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 usr/utils/uname.c (limited to 'usr/utils/uname.c') diff --git a/usr/utils/uname.c b/usr/utils/uname.c new file mode 100644 index 0000000..6ea4dbe --- /dev/null +++ b/usr/utils/uname.c @@ -0,0 +1,155 @@ +/* + * by tlh + * + * The uname program for system information: kernel name, kernel + * release, kernel release, machine, processor, platform, os and + * hostname. + */ + +#include +#include +#include +#include +#include + +enum uname_fields { + UN_SYSNAME, + UN_NODENAME, + UN_RELEASE, + UN_VERSION, + UN_MACHINE, +#if NOT_IMPLEMENTED_PROCESSOR + UN_PROCESSOR, +#endif + UN_HARDWARE, +#if NOT_IMPLEMENTED_OS + UN_OS, +#endif + UN_NR_FIELDS +}; + +static void usage(FILE *stream, const char *progname) +{ + fprintf(stream, + "Usage: %s [OPTION] . . .\n" + "Print system information, No options defaults to -s.\n" + "\n" + " -a print all the information in the same order as follows below\n" + " -s kernel name\n" + " -n network node name (hostname)\n" + " -r kernel release\n" + " -v kernel version\n" " -m machine hardware name\n" +#if NOT_IMPLEMENTED_PROCESSOR + " -p processor type\n" +#endif + " -i hardware platform\n" +#if NOT_IMPLEMENTED_OS + " -o operating system\n" +#endif + "\n" " -h help/usage\n" "\n", progname); +} + +static char *make_hardware(const char *machine) +{ + char *hardware; + + hardware = strdup(machine); + if (!hardware) { + fprintf(stderr, "strdup() failed: %s\n", strerror(errno)); + goto end; + } + if (strlen(hardware) == 4 + && hardware[0] == 'i' && hardware[2] == '8' && hardware[3] == '6') { + hardware[1] = '3'; + } +end: + return hardware; +} + +int main(int argc, char *argv[]) +{ + int ec = 1; + int opt; + int i; + int nr_pr; + struct utsname buf; + char *uname_fields[UN_NR_FIELDS] = { NULL }; + + if (-1 == uname(&buf)) { + fprintf(stderr, "uname() failure: %s\n", strerror(errno)); + goto end; + } + + if (1 == argc) + /* no options given - default to -s */ + uname_fields[UN_SYSNAME] = buf.sysname; + + while ((opt = getopt(argc, argv, "asnrvmpioh")) != -1) { + switch (opt) { + case 'a': + uname_fields[UN_SYSNAME] = buf.sysname; + uname_fields[UN_NODENAME] = buf.nodename; + uname_fields[UN_RELEASE] = buf.release; + uname_fields[UN_VERSION] = buf.version; + uname_fields[UN_MACHINE] = buf.machine; + uname_fields[UN_HARDWARE] = make_hardware(buf.machine); + if (!uname_fields[UN_HARDWARE]) + goto end; + break; + case 's': + uname_fields[UN_SYSNAME] = buf.sysname; + break; + case 'n': + uname_fields[UN_NODENAME] = buf.nodename; + break; + case 'r': + uname_fields[UN_RELEASE] = buf.release; + break; + case 'v': + uname_fields[UN_VERSION] = buf.version; + break; + case 'm': + uname_fields[UN_MACHINE] = buf.machine; + break; +#if NOT_IMPLEMENTED_PROCESSOR + case 'p': + break; +#endif + case 'i': + uname_fields[UN_HARDWARE] = make_hardware(buf.machine); + if (!uname_fields[UN_HARDWARE]) + goto end; + break; +#if NOT_IMPLEMENTED_OS + case 'o': + break; +#endif + case 'h': + usage(stdout, argv[0]); + ec = 0; + goto end; + break; + default: + usage(stderr, argv[0]); + goto end; + break; + } + } + + for (nr_pr = 0, i = UN_SYSNAME; i < UN_NR_FIELDS; i++) { + if (!uname_fields[i]) + continue; + if (nr_pr) + fputc(' ', stdout); + fputs(uname_fields[i], stdout); + nr_pr++; + } + fputc('\n', stdout); + + ec = 0; + +end: + if (uname_fields[UN_HARDWARE]) + free(uname_fields[UN_HARDWARE]); + return ec; +} -- cgit v1.2.3