1 files changed, 57 insertions, 0 deletions
diff --git a/include/error.h b/include/error.h
new file mode 100644
index 0000000..7685c9e
--- /dev/null
+++ b/include/error.h
@@ -0,0 +1,57 @@
+#ifndef ERROR_H
+#define ERROR_H
+
+#include <errno.h>
+
+#ifndef EPROTO             /* OpenBSD compat */
+#define EPROTO EINTR
+#endif
+
+#define error_str(i) errstr(i)
+extern char *error_str(int);
+
+/* Exception handling notes: 
+   (1) system errors RECEIVED according to <errno.h> during operation and handed over
+   (2) application errors DEFINED internally and ennumerated alongside with <errno.h>
+*/
+
+/* djb backwards compatibility - deprecated form of system errors */
+                                          /* Comparison of error codes and constants:
+                                             intern   Linux  FreeBSD  OmniOS       */
+#define error_intr          EINTR         /*    -1       4       4       4    */
+#define error_nomem         ENOMEM        /*    -2      12      12      12    */
+#define error_noent         ENOENT        /*    -3       2       2       2    */
+#define error_txtbsy        ETXTBSY       /*    -4      26      26      26    */
+#define error_io            EIO           /*    -5       5       5       5    */
+#define error_exist         EEXIST        /*    -6      17      17      17    */
+#define error_timeout       ETIMEDOUT     /*    -7     110      60     145    */
+#define error_inprogress    EINPROGRESS   /*    -8     115      36     160    */
+#define error_wouldblock    EWOULDBLOCK   /*    -9    EAGAIN  EAGAIN  EAGAIN  */
+#define error_again         EAGAIN        /*   -10      11      35      11    */
+#define error_pipe          EPIPE         /*   -11      32      32      32    */
+#define error_perm          EPERM         /*   -12       1       1       1    */
+#define error_acces         EACCES        /*   -13      13      13      13    */
+#define error_nodevice      ENODEV        /*   -14      (6)     (6)     19    */
+#define error_proto         EPROTO        /*   -15      71      92      71    */
+#define error_isdir         EISDIR        /*   -16      21      21      21    */
+#define error_connrefused   ECONNREFUSED  /*   -17     111      61     146    */
+//extern int error_notdir;                /*   -18      20      20      20    */
+#define error_rofs          EROFS         /*   -19      30      30      30    */
+#define error_connreset     ECONNRESET    /*   -20     104      54     131    */
+
+/* djb uses some internal application error and class definitions -- revised (feh) */
+#define CAT     -10   /* raw message w/o terminating \n */
+#define LOG     -90   /* generic logging */
+#define INFO    -91   /* named logging */
+#define TEMP    -97   /* (triggered) temporay alert condition */
+#define ALERT   -98   /* (triggered) alert condition */
+#define WARN    -99   /* exception condition */
+#define ESOFT  -100   /* soft error, reversed negative */
+#define EHARD  -111   /* hard error, reversed negative */
+#define USAGE   100   /* usage error on call -- explicit usage() */
+#define SYNTAX  101   /* usage/syntax error on call -- explicit syntaxerror() */
+#define DROP    110   /* connection dropped -- explicit dropped() */
+#define FATAL   111   /* internal error -- all */
+#define ERROR   112   /* application error */
+
+#endif