1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /*- |
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4 | * Copyright (c) 1988, 1993 |
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5 | * The Regents of the University of California. All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * 4. Neither the name of the University nor the names of its contributors |
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16 | * may be used to endorse or promote products derived from this software |
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17 | * without specific prior written permission. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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29 | * SUCH DAMAGE. |
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30 | */ |
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31 | |
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32 | #if 0 |
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33 | #ifndef lint |
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34 | static char const copyright[] = |
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35 | "@(#) Copyright (c) 1988, 1993\n\ |
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36 | The Regents of the University of California. All rights reserved.\n"; |
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37 | #endif /* not lint */ |
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38 | |
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39 | #ifndef lint |
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40 | static char sccsid[] = "@(#)hostname.c 8.1 (Berkeley) 5/31/93"; |
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41 | #endif /* not lint */ |
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42 | #endif |
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43 | #ifdef __rtems__ |
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44 | #define __need_getopt_newlib |
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45 | #include <getopt.h> |
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46 | #include <rtems/netcmds-config.h> |
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47 | #include <machine/rtems-bsd-program.h> |
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48 | #include <machine/rtems-bsd-commands.h> |
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49 | #endif /* __rtems__ */ |
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50 | #include <sys/cdefs.h> |
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51 | __FBSDID("$FreeBSD$"); |
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52 | |
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53 | #include <rtems/bsd/sys/param.h> |
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54 | |
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55 | #include <err.h> |
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56 | #include <stdio.h> |
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57 | #include <stdlib.h> |
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58 | #include <string.h> |
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59 | #include <unistd.h> |
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60 | |
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61 | static void usage(void); |
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62 | |
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63 | #ifdef __rtems__ |
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64 | static int main(int argc, char *argv[]); |
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65 | |
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66 | static int hostname_command(int argc, char *argv[]) |
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67 | { |
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68 | int exit_code; |
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69 | |
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70 | rtems_bsd_program_lock(); |
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71 | |
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72 | exit_code = rtems_bsd_program_call_main("hostname", main, argc, argv); |
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73 | |
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74 | rtems_bsd_program_unlock(); |
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75 | |
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76 | return exit_code; |
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77 | } |
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78 | |
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79 | rtems_shell_cmd_t rtems_shell_HOSTNAME_Command = { |
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80 | .name = "hostname", |
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81 | .usage = "hostname [-fs] [name-of-host]", |
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82 | .topic = "net", |
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83 | .command = hostname_command |
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84 | }; |
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85 | #endif /* __rtems__ */ |
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86 | int |
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87 | main(int argc, char *argv[]) |
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88 | { |
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89 | int ch, sflag; |
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90 | char *p, hostname[MAXHOSTNAMELEN]; |
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91 | #ifdef __rtems__ |
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92 | struct getopt_data getopt_data; |
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93 | memset(&getopt_data, 0, sizeof(getopt_data)); |
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94 | #define optind getopt_data.optind |
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95 | #define getopt(argc, argv, opt) getopt_r(argc, argv, "+" opt, &getopt_data) |
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96 | #endif /* __rtems__ */ |
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97 | |
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98 | sflag = 0; |
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99 | while ((ch = getopt(argc, argv, "fs")) != -1) |
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100 | switch (ch) { |
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101 | case 'f': |
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102 | /* |
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103 | * On Linux, "hostname -f" prints FQDN. |
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104 | * BSD "hostname" always prints FQDN by |
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105 | * default, so we accept but ignore -f. |
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106 | */ |
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107 | break; |
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108 | case 's': |
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109 | sflag = 1; |
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110 | break; |
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111 | case '?': |
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112 | default: |
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113 | usage(); |
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114 | } |
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115 | argc -= optind; |
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116 | argv += optind; |
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117 | |
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118 | if (argc > 1) |
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119 | usage(); |
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120 | |
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121 | if (*argv) { |
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122 | if (sethostname(*argv, (int)strlen(*argv))) |
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123 | err(1, "sethostname"); |
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124 | } else { |
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125 | if (gethostname(hostname, (int)sizeof(hostname))) |
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126 | err(1, "gethostname"); |
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127 | if (sflag) { |
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128 | p = strchr(hostname, '.'); |
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129 | if (p != NULL) |
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130 | *p = '\0'; |
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131 | } |
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132 | (void)printf("%s\n", hostname); |
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133 | } |
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134 | exit(0); |
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135 | } |
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136 | |
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137 | static void |
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138 | usage(void) |
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139 | { |
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140 | |
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141 | (void)fprintf(stderr, "usage: hostname [-fs] [name-of-host]\n"); |
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142 | exit(1); |
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143 | } |
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