libexplain  1.4.D001
libexplain/iocontrol/pppiocgchan.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2010, 2011, 2013 Peter Miller
00004  * Written by Peter Miller <pmiller@opensource.org.au>
00005  *
00006  * This program is free software; you can redistribute it and/or modify it
00007  * under the terms of the GNU Lesser General Public License as published by
00008  * the Free Software Foundation; either version 3 of the License, or (at your
00009  * option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful, but WITHOUT
00012  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00013  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00014  * License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00018  */
00019 
00020 #include <libexplain/ac/errno.h>
00021 #include <libexplain/ac/linux/if_ppp.h>
00022 #include <libexplain/ac/sys/ioctl.h>
00023 
00024 #include <libexplain/buffer/enxio.h>
00025 #include <libexplain/buffer/int.h>
00026 #include <libexplain/buffer/pointer.h>
00027 #include <libexplain/iocontrol/generic.h>
00028 #include <libexplain/iocontrol/pppiocgchan.h>
00029 
00030 #ifdef PPPIOCGCHAN
00031 
00032 
00033 static void
00034 print_data(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
00035     int errnum, int fildes, int request, const void *data)
00036 {
00037     (void)p;
00038     (void)errnum;
00039     (void)fildes;
00040     (void)request;
00041     explain_buffer_pointer(sb, data);
00042 }
00043 
00044 
00045 static void
00046 print_explanation(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
00047     int errnum, int fildes, int request, const void *data)
00048 {
00049     switch (errnum)
00050     {
00051     case ENOTCONN:
00052     case EINVAL:
00053     case ENODEV:
00054         explain_buffer_enxio_bad_unit(sb);
00055         break;
00056 
00057     default:
00058         explain_iocontrol_generic_print_explanation
00059         (
00060             p,
00061             sb,
00062             errnum,
00063             fildes,
00064             request,
00065             data
00066         );
00067         break;
00068     }
00069 }
00070 
00071 static void
00072 print_data_returned(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
00073     int errnum, int fildes, int request, const void *data)
00074 {
00075     (void)p;
00076     (void)errnum;
00077     (void)fildes;
00078     (void)request;
00079     explain_buffer_int_star(sb, data);
00080 }
00081 
00082 
00083 const explain_iocontrol_t explain_iocontrol_pppiocgchan =
00084 {
00085     "PPPIOCGCHAN", /* name */
00086     PPPIOCGCHAN, /* value */
00087     0, /* disambiguate */
00088     0, /* print_name */
00089     print_data,
00090     print_explanation,
00091     print_data_returned,
00092     sizeof(int), /* data_size */
00093     "int *", /* data_type */
00094     0, /* flags */
00095     __FILE__,
00096     __LINE__,
00097 };
00098 
00099 #else /* ndef PPPIOCGCHAN */
00100 
00101 const explain_iocontrol_t explain_iocontrol_pppiocgchan =
00102 {
00103     0, /* name */
00104     0, /* value */
00105     0, /* disambiguate */
00106     0, /* print_name */
00107     0, /* print_data */
00108     0, /* print_explanation */
00109     0, /* print_data_returned */
00110     0, /* data_size */
00111     0, /* data_type */
00112     0, /* flags */
00113     __FILE__,
00114     __LINE__,
00115 };
00116 
00117 #endif /* PPPIOCGCHAN */
00118 
00119 
00120 /* vim: set ts=8 sw=4 et : */