libexplain  1.4.D001
libexplain/iocontrol/hdio_get_acoustic.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2009-2011, 2013 Peter Miller
00004  *
00005  * This program is free software; you can redistribute it and/or modify it
00006  * under the terms of the GNU Lesser General Public License as published by
00007  * the Free Software Foundation; either version 3 of the License, or (at your
00008  * option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,but WITHOUT
00011  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
00013  * for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public License
00016  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00017  */
00018 
00019 #include <libexplain/ac/sys/ioctl.h>
00020 #include <libexplain/ac/errno.h>
00021 #include <libexplain/ac/linux/hdreg.h>
00022 
00023 #include <libexplain/buffer/dac.h>
00024 #include <libexplain/buffer/long.h>
00025 #include <libexplain/buffer/pointer.h>
00026 #include <libexplain/capability.h>
00027 #include <libexplain/iocontrol/generic.h>
00028 #include <libexplain/iocontrol/hdio_get_acoustic.h>
00029 
00030 #ifdef HDIO_GET_ACOUSTIC
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 EACCES:
00052         if (!explain_capability_sys_admin())
00053         {
00054             explain_buffer_dac_sys_admin(sb);
00055             break;
00056         }
00057         goto generic;
00058 
00059     default:
00060         generic:
00061         explain_iocontrol_generic_print_explanation
00062         (
00063             p,
00064             sb,
00065             errnum,
00066             fildes,
00067             request,
00068             data
00069         );
00070         break;
00071     }
00072 }
00073 
00074 
00075 static void
00076 print_data_returned(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
00077     int errnum, int fildes, int request, const void *data)
00078 {
00079     (void)p;
00080     (void)errnum;
00081     (void)fildes;
00082     (void)request;
00083     explain_buffer_long_star(sb, data);
00084 }
00085 
00086 
00087 const explain_iocontrol_t explain_iocontrol_hdio_get_acoustic =
00088 {
00089     "HDIO_GET_ACOUSTIC", /* name */
00090     HDIO_GET_ACOUSTIC, /* value */
00091     0, /* disambiguate */
00092     0, /* print_name */
00093     print_data,
00094     print_explanation,
00095     print_data_returned,
00096     sizeof(long), /* data_size */
00097     "long *", /* data_type */
00098     IOCONTROL_FLAG_NON_META, /* flags */
00099     __FILE__,
00100     __LINE__,
00101 };
00102 
00103 #else /* ndef HDIO_GET_ACOUSTIC */
00104 
00105 const explain_iocontrol_t explain_iocontrol_hdio_get_acoustic =
00106 {
00107     0, /* name */
00108     0, /* value */
00109     0, /* disambiguate */
00110     0, /* print_name */
00111     0, /* print_data */
00112     0, /* print_explanation */
00113     0, /* print_data_returned */
00114     0, /* data_size */
00115     0, /* data_type */
00116     0, /* flags */
00117     __FILE__,
00118     __LINE__,
00119 };
00120 
00121 #endif /* HDIO_GET_ACOUSTIC */
00122 
00123 
00124 /* vim: set ts=8 sw=4 et : */