1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Copyright (C) 2009 Denys Vlasenko.
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4 | *
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5 | * Licensed under GPLv2, see file LICENSE in this source tree.
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6 | */
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7 | #include <unistd.h>
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8 | #include <stdint.h>
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9 | #include <stdlib.h>
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10 | #include <string.h>
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11 | #include <stdio.h>
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12 |
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13 | #include "autoconf.h"
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14 |
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15 | #define SKIP_applet_main
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16 | #define ALIGN1 /* nothing, just to placate applet_tables.h */
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17 | #define ALIGN2 /* nothing, just to placate applet_tables.h */
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18 | #include "applet_tables.h"
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19 |
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20 | /* Since we can't use platform.h, have to do this again by hand: */
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21 | #if ENABLE_NOMMU
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22 | # define BB_MMU 0
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23 | # define USE_FOR_NOMMU(...) __VA_ARGS__
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24 | # define USE_FOR_MMU(...)
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25 | #else
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26 | # define BB_MMU 1
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27 | # define USE_FOR_NOMMU(...)
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28 | # define USE_FOR_MMU(...) __VA_ARGS__
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29 | #endif
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30 |
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31 | #include "usage.h"
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32 | #define MAKE_USAGE(aname, usage) { aname, usage },
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33 | static struct usage_data {
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34 | const char *aname;
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35 | const char *usage;
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36 | } usage_array[] = {
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37 | #include "applets.h"
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38 | };
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39 |
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40 | static int compare_func(const void *a, const void *b)
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41 | {
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42 | const struct usage_data *ua = a;
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43 | const struct usage_data *ub = b;
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44 | return strcmp(ua->aname, ub->aname);
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45 | }
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46 |
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47 | int main(void)
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48 | {
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49 | int col, len2;
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50 |
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51 | int i;
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52 | int num_messages = sizeof(usage_array) / sizeof(usage_array[0]);
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53 |
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54 | if (num_messages == 0)
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55 | return 0;
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56 |
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57 | qsort(usage_array,
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58 | num_messages, sizeof(usage_array[0]),
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59 | compare_func);
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60 |
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61 | col = 0;
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62 | for (i = 0; i < num_messages; i++) {
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63 | len2 = strlen(usage_array[i].aname) + 2;
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64 | if (col >= 76 - len2) {
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65 | printf(",\n");
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66 | col = 0;
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67 | }
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68 | if (col == 0) {
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69 | col = 6;
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70 | printf("\t");
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71 | } else {
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72 | printf(", ");
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73 | }
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74 | printf(usage_array[i].aname);
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75 | col += len2;
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76 | }
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77 | printf("\n\n");
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78 |
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79 | printf("=head1 COMMAND DESCRIPTIONS\n\n");
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80 | printf("=over 4\n\n");
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81 |
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82 | for (i = 0; i < num_messages; i++) {
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83 | if (usage_array[i].aname[0] >= 'a' && usage_array[i].aname[0] <= 'z'
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84 | && usage_array[i].usage[0] != NOUSAGE_STR[0]
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85 | ) {
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86 | printf("=item B<%s>\n\n", usage_array[i].aname);
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87 | if (usage_array[i].usage[0])
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88 | printf("%s %s\n\n", usage_array[i].aname, usage_array[i].usage);
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89 | else
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90 | printf("%s\n\n", usage_array[i].aname);
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91 | }
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92 | }
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93 | return 0;
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94 | }
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95 |
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96 | /* TODO: we used to make options bold with B<> and output an example too:
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97 |
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98 | =item B<cat>
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99 |
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100 | cat [B<-u>] [FILE]...
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101 |
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102 | Concatenate FILE(s) and print them to stdout
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103 |
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104 | Options:
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105 | -u Use unbuffered i/o (ignored)
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106 |
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107 | Example:
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108 | $ cat /proc/uptime
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109 | 110716.72 17.67
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110 |
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111 | */
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