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112 lines
2.3 KiB
C
112 lines
2.3 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Copyright (C) 2009 Denys Vlasenko.
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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#include <unistd.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "autoconf.h"
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#define SKIP_applet_main
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#define ALIGN1 /* nothing, just to placate applet_tables.h */
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#define ALIGN2 /* nothing, just to placate applet_tables.h */
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#include "applet_tables.h"
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/* Since we can't use platform.h, have to do this again by hand: */
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#if ENABLE_NOMMU
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# define BB_MMU 0
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# define USE_FOR_NOMMU(...) __VA_ARGS__
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# define USE_FOR_MMU(...)
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#else
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# define BB_MMU 1
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# define USE_FOR_NOMMU(...)
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# define USE_FOR_MMU(...) __VA_ARGS__
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#endif
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#include "usage.h"
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#define MAKE_USAGE(aname, usage) { aname, usage },
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static struct usage_data {
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const char *aname;
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const char *usage;
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} usage_array[] = {
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#include "applets.h"
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};
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static int compare_func(const void *a, const void *b)
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{
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const struct usage_data *ua = a;
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const struct usage_data *ub = b;
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return strcmp(ua->aname, ub->aname);
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}
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int main(void)
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{
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int col, len2;
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int i;
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int num_messages = sizeof(usage_array) / sizeof(usage_array[0]);
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if (num_messages == 0)
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return 0;
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qsort(usage_array,
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num_messages, sizeof(usage_array[0]),
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compare_func);
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col = 0;
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for (i = 0; i < num_messages; i++) {
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len2 = strlen(usage_array[i].aname) + 2;
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if (col >= 76 - len2) {
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printf(",\n");
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col = 0;
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}
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if (col == 0) {
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col = 6;
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printf("\t");
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} else {
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printf(", ");
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}
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printf(usage_array[i].aname);
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col += len2;
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}
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printf("\n\n");
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printf("=head1 COMMAND DESCRIPTIONS\n\n");
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printf("=over 4\n\n");
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for (i = 0; i < num_messages; i++) {
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if (usage_array[i].aname[0] >= 'a' && usage_array[i].aname[0] <= 'z'
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&& usage_array[i].usage[0] != NOUSAGE_STR[0]
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) {
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printf("=item B<%s>\n\n", usage_array[i].aname);
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if (usage_array[i].usage[0])
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printf("%s %s\n\n", usage_array[i].aname, usage_array[i].usage);
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else
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printf("%s\n\n", usage_array[i].aname);
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}
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}
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return 0;
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}
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/* TODO: we used to make options bold with B<> and output an example too:
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=item B<cat>
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cat [B<-u>] [FILE]...
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Concatenate FILE(s) and print them to stdout
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Options:
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-u Use unbuffered i/o (ignored)
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Example:
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$ cat /proc/uptime
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110716.72 17.67
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*/
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