bin/uname: add POSIX-compliant uname(1)

3 files changed, 204 insertions, 0 deletions

diff --git a/bin/uname/uname.1 b/bin/uname/uname.1
new file mode 100644
index 0000000..a8c6659
--- /dev/null
+++ b/bin/uname/uname.1
@@ -0,0 +1,86 @@
+.\"	$NetBSD: uname.1,v 1.12 2005/03/27 18:41:22 peter Exp $
+.\"
+.\" Copyright (c) 1990 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)du.1	6.13 (Berkeley) 6/20/91
+.\"	$NetBSD: uname.1,v 1.12 2005/03/27 18:41:22 peter Exp $
+.\"
+.Dd November 9, 1998
+.Dt UNAME 1
+.Os
+.Sh NAME
+.Nm uname
+.Nd Print operating system name
+.Sh SYNOPSIS
+.Nm
+.Op Fl amnorsv
+.Sh DESCRIPTION
+The
+.Nm
+utility writes symbols representing one or more system characteristics
+to the standard output.
+.Pp
+The following options are available:
+.Bl -tag -width indent
+.It Fl a
+Behave as though all of the options
+.Fl mnorsv
+were specified.
+.It Fl m
+print the machine hardware name.
+.It Fl n
+print the nodename (the nodename may be a name
+that the system is known by to a communications
+network).
+.It Fl o
+print the operating system name (nonstandard; present for compatibility
+with GNU coreutils' implementation).
+.It Fl r
+print the operating system release.
+.It Fl s
+print the operating system name.
+.It Fl v
+print the operating system version.
+.El
+.Pp
+If no options are specified,
+.Nm
+prints the operating system name as if the
+.Fl s
+option had been specified.
+.Sh SEE ALSO
+.Xr hostname 1 ,
+.Xr uname 3
+.Sh STANDARDS
+The
+.Nm
+utility conforms to
+.St -p1003.2-92 .
+The
+.Fl o
+option is an extension to the standard.
diff --git a/bin/uname/uname.c b/bin/uname/uname.c
new file mode 100644
index 0000000..f648f92
--- /dev/null
+++ b/bin/uname/uname.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2019 The Adélie Userland Team. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/utsname.h>
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void usage(void) __attribute__((noreturn));
+
+int main(int argc, char **argv) {
+    struct utsname sysinfo;
+    bool mflag, nflag, oflag, rflag, sflag, vflag;
+    mflag = nflag = oflag = rflag = sflag = vflag = false;
+    char ch;
+
+    while ((ch = getopt(argc, argv, "amnorsv")) != -1) {
+        switch (ch) {
+            case 'a':
+                mflag = nflag = oflag = rflag = sflag = vflag = true;
+                break;
+            case 'm':
+                mflag = true;
+                break;
+            case 'n':
+                nflag = true;
+                break;
+            case 'o':
+                oflag = true;
+                break;
+            case 'r':
+                rflag = true;
+                break;
+            case 's':
+                sflag = true;
+                break;
+            case 'v':
+                vflag = true;
+                break;
+            default:
+                usage();
+                /*UNREACHABLE*/
+        }
+    }
+    if (!(mflag || nflag || rflag || vflag)) {
+        sflag = true;
+    }
+
+    if (uname(&sysinfo) != 0) {
+        fprintf(stderr, "uname failed: %s\n", strerror(errno));
+        exit(errno);
+    }
+
+    if (sflag) {
+        printf("%s ", sysinfo.sysname);
+    }
+    if (nflag) {
+        printf("%s ", sysinfo.nodename);
+    }
+    if (rflag) {
+        printf("%s ", sysinfo.release);
+    }
+    if (vflag) {
+        printf("%s ", sysinfo.version);
+    }
+    if (mflag) {
+        printf("%s ", sysinfo.machine);
+    }
+    if (oflag) {
+        printf("%s ", sysinfo.sysname);
+    }
+    printf("\n");
+
+    return EXIT_SUCCESS;
+}
+
+void usage(void) {
+    fprintf(stderr, "usage: uname [-amnorsv]\n");
+    exit(1);
+}
diff --git a/bin/uname/uname.gpr b/bin/uname/uname.gpr
new file mode 100644
index 0000000..01ba708
--- /dev/null
+++ b/bin/uname/uname.gpr
@@ -0,0 +1,6 @@
+project uname extends "template/bin.gpr" is
+
+   for Main use (project'Name);
+   for Object_Dir use External ("BUILDROOT") & "/" & project'Name;
+
+end uname;