man: document BSD exit codes in systemd.exec(5) too

Our own tools use them now, and we probably should encourage that, hence
let's document them along with the other exit codes we use.

diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index b2ac0a26558dee76f22456c086b1998a320955d0..1a01a7f75ff61f4be4b9bc33ef57573e36f193d0 100644 (file)
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -2612,6 +2612,98 @@ StandardInputData=SWNrIHNpdHplIGRhIHVuJyBlc3NlIEtsb3BzLAp1ZmYgZWVtYWwga2xvcHAncy
         </tbody>
       </tgroup>
     </table>
+
+    <para>Finally, the BSD operating systems define a set of exit codes, typically defined on Linux systems too:</para>
+
+    <table>
+      <title>BSD exit codes</title>
+      <tgroup cols='3'>
+        <thead>
+          <row>
+            <entry>Exit Code</entry>
+            <entry>Symbolic Name</entry>
+            <entry>Description</entry>
+          </row>
+        </thead>
+        <tbody>
+          <row>
+            <entry>64</entry>
+            <entry><constant>EX_USAGE</constant></entry>
+            <entry>Command line usage error</entry>
+          </row>
+          <row>
+            <entry>65</entry>
+            <entry><constant>EX_DATAERR</constant></entry>
+            <entry>Data format error</entry>
+          </row>
+          <row>
+            <entry>66</entry>
+            <entry><constant>EX_NOINPUT</constant></entry>
+            <entry>Cannot open input</entry>
+          </row>
+          <row>
+            <entry>67</entry>
+            <entry><constant>EX_NOUSER</constant></entry>
+            <entry>Addressee unknown</entry>
+          </row>
+          <row>
+            <entry>68</entry>
+            <entry><constant>EX_NOHOST</constant></entry>
+            <entry>Host name unknown</entry>
+          </row>
+          <row>
+            <entry>69</entry>
+            <entry><constant>EX_UNAVAILABLE</constant></entry>
+            <entry>Service unavailable</entry>
+          </row>
+          <row>
+            <entry>70</entry>
+            <entry><constant>EX_SOFTWARE</constant></entry>
+            <entry>internal software error</entry>
+          </row>
+          <row>
+            <entry>71</entry>
+            <entry><constant>EX_OSERR</constant></entry>
+            <entry>System error (e.g., can't fork)</entry>
+          </row>
+          <row>
+            <entry>72</entry>
+            <entry><constant>EX_OSFILE</constant></entry>
+            <entry>Critical OS file missing</entry>
+          </row>
+          <row>
+            <entry>73</entry>
+            <entry><constant>EX_CANTCREAT</constant></entry>
+            <entry>Can't create (user) output file</entry>
+          </row>
+          <row>
+            <entry>74</entry>
+            <entry><constant>EX_IOERR</constant></entry>
+            <entry>Input/output error</entry>
+          </row>
+          <row>
+            <entry>75</entry>
+            <entry><constant>EX_TEMPFAIL</constant></entry>
+            <entry>Temporary failure; user is invited to retry</entry>
+          </row>
+          <row>
+            <entry>76</entry>
+            <entry><constant>EX_PROTOCOL</constant></entry>
+            <entry>Remote error in protocol</entry>
+          </row>
+          <row>
+            <entry>77</entry>
+            <entry><constant>EX_NOPERM</constant></entry>
+            <entry>Permission denied</entry>
+          </row>
+          <row>
+            <entry>78</entry>
+            <entry><constant>EX_CONFIG</constant></entry>
+            <entry>Configuration error</entry>
+          </row>
+        </tbody>
+      </tgroup>
+    </table>
   </refsect1>
 
   <refsect1>