Created student weenix repository

1 files changed, 93 insertions, 0 deletions

diff --git a/user/bin/uname.c b/user/bin/uname.c
new file mode 100644
index 0000000..942f330
--- /dev/null
+++ b/user/bin/uname.c
@@ -0,0 +1,93 @@
+/*
+ *   FILE: uname.c
+ * AUTHOR: kma
+ *  DESCR: uname. whee!
+ */
+
+#include <stdio.h>
+#include <sys/utsname.h>
+
+char *TAS =
+    "weenix brought to you by:\n"
+    "1998: jal, dep, kma, mcc, cd, tor\n"
+    "1999: mbe, tc, kma, mahrens, tor\n"
+    "2000: ahl, mahrens, mba, pdemoreu, it\n"
+    "2001: pgriess, pdemoreu, gc3, rmanches, dg\n"
+    "2002: kit, eschrock\n"
+    "2005: afenn\n"
+    "2006: afenn\n"
+    "2007: dap, joel\n"
+    "and the number 0xe\n";
+
+static int doflag(int c);
+
+static struct utsname un;
+
+int main(int argc, char **argv)
+{
+    int ii;
+
+    uname(&un);
+
+    for (ii = 1; ii < argc; ii++)
+    {
+        if (argv[ii][0] == '-')
+        {
+            char *str;
+            str = &argv[ii][1];
+            while (*str)
+            {
+                if (doflag(*str++) < 0)
+                {
+                    goto usage;
+                }
+            }
+        }
+    }
+
+    if (argc == 1)
+    {
+        doflag('s');
+    }
+    fprintf(stdout, "\n");
+    return 0;
+
+usage:
+    return 1;
+}
+
+static int doflag(int c)
+{
+    switch (c)
+    {
+    case 'a':
+        printf("%s", TAS);
+        printf("%s ", un.sysname);
+        printf("%s ", un.nodename);
+        printf("%s ", un.release);
+        printf("%s ", un.version);
+        printf("%s ", un.machine);
+        break;
+    case 's':
+        printf("%s", un.sysname);
+        break;
+    case 'n':
+        printf("%s", un.nodename);
+        break;
+    case 'r':
+        printf("%s", un.release);
+        break;
+    case 'T':
+        printf("%s", TAS);
+        break;
+    case 'v':
+        printf("%s", un.version);
+        break;
+    case 'm':
+        printf("%s", un.machine);
+        break;
+    default:
+        return -1;
+    }
+    return 0;
+}