[3320] | 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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