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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:06:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:06:04 +0000
commit2f0649f6fe411d7e07c8d56cf8ea56db53536da8 (patch)
tree778611fb52176dce1ad06c68e87b2cb348ca0f7b /usr/utils/uname.c
parentInitial commit. (diff)
downloadklibc-upstream/2.0.13.tar.xz
klibc-upstream/2.0.13.zip
Adding upstream version 2.0.13.upstream/2.0.13upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--usr/utils/uname.c155
1 files changed, 155 insertions, 0 deletions
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 <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/utsname.h>
+
+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;
+}