1 | /*
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2 | * issue.c: issue printing code
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3 | *
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4 | * Copyright (C) 2003 Bastian Blank <waldi@tuxbox.org>
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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19 | *
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20 | * Optimize and correcting OCRNL by Vladimir Oleynik <dzo@simtreas.ru>
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21 | */
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22 |
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23 | #include <sys/param.h> /* MAXHOSTNAMELEN */
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24 | #include <stdio.h>
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25 | #include <unistd.h>
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26 | #include "libbb.h"
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27 |
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28 | #include <sys/utsname.h>
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29 | #include <time.h>
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30 |
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31 | #define LOGIN " login: "
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32 |
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33 | static const char fmtstr_d[] = "%A, %d %B %Y";
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34 | static const char fmtstr_t[] = "%H:%M:%S";
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35 |
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36 | void print_login_issue(const char *issue_file, const char *tty)
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37 | {
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38 | FILE *fd;
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39 | int c;
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40 | char buf[256+1];
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41 | const char *outbuf;
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42 | time_t t;
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43 | struct utsname uts;
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44 |
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45 | time(&t);
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46 | uname(&uts);
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47 |
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48 | puts("\r"); /* start a new line */
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49 |
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50 | if ((fd = fopen(issue_file, "r"))) {
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51 | while ((c = fgetc(fd)) != EOF) {
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52 | outbuf = buf;
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53 | buf[0] = c;
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54 | if(c == '\n') {
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55 | buf[1] = '\r';
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56 | buf[2] = 0;
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57 | } else {
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58 | buf[1] = 0;
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59 | }
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60 | if (c == '\\' || c == '%') {
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61 | c = fgetc(fd);
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62 | switch (c) {
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63 | case 's':
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64 | outbuf = uts.sysname;
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65 | break;
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66 |
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67 | case 'n':
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68 | outbuf = uts.nodename;
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69 | break;
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70 |
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71 | case 'r':
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72 | outbuf = uts.release;
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73 | break;
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74 |
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75 | case 'v':
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76 | outbuf = uts.version;
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77 | break;
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78 |
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79 | case 'm':
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80 | outbuf = uts.machine;
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81 | break;
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82 |
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83 | case 'D':
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84 | case 'o':
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85 | c = getdomainname(buf, sizeof(buf) - 1);
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86 | buf[c >= 0 ? c : 0] = '\0';
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87 | break;
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88 |
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89 | case 'd':
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90 | strftime(buf, sizeof(buf), fmtstr_d, localtime(&t));
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91 | break;
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92 |
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93 | case 't':
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94 | strftime(buf, sizeof(buf), fmtstr_t, localtime(&t));
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95 | break;
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96 |
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97 | case 'h':
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98 | gethostname(buf, sizeof(buf) - 1);
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99 | buf[sizeof(buf) - 1] = '\0';
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100 | break;
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101 |
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102 | case 'l':
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103 | outbuf = tty;
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104 | break;
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105 |
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106 | default:
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107 | buf[0] = c;
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108 | }
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109 | }
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110 | fputs(outbuf, stdout);
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111 | }
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112 |
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113 | fclose(fd);
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114 |
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115 | fflush(stdout);
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116 | }
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117 | }
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118 |
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119 | void print_login_prompt(void)
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120 | {
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121 | char buf[MAXHOSTNAMELEN+1];
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122 |
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123 | if(gethostname(buf, MAXHOSTNAMELEN) == 0)
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124 | fputs(buf, stdout);
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125 |
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126 | fputs(LOGIN, stdout);
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127 | fflush(stdout);
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128 | }
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129 |
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