Mercurial > hg > toybox
annotate toys/hello.c @ 644:6a096902309d
Add dos2unix/unix2dos, remove old wrapper versions.
author | Rob Landley <rob@landley.net> |
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date | Mon, 30 Jul 2012 01:48:28 -0500 |
parents | a3e014fdeb35 |
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1 /* vi: set sw=4 ts=4: |
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2 * |
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3 * hello.c - A hello world program. |
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4 * |
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5 * Copyright 2012 Rob Landley <rob@landley.net> |
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6 * |
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7 * Not in SUSv4/LSB. |
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8 * See http://opengroup.org/onlinepubs/9699919799/utilities/ |
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9 * See http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cmdbehav.html |
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10 |
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11 USE_HELLO(NEWTOY(hello, "e@d*c#b:a", TOYFLAG_USR|TOYFLAG_BIN)) |
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12 |
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13 config HELLO |
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14 bool "hello" |
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15 default n |
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16 help |
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17 usage: hello [-a] [-b string] [-c number] [-d list] [-e count] [...] |
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18 |
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19 A hello world program. You don't need this. |
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20 |
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21 Mostly used as an example/skeleton file for adding new commands, |
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22 occasionally nice to test kernel booting via "init=/bin/hello". |
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23 */ |
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24 |
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25 #include "toys.h" |
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26 |
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27 // Hello doesn't use these globals, they're here for example/skeleton purposes. |
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28 |
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29 DEFINE_GLOBALS( |
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30 char *b_string; |
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31 long c_number; |
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32 struct arg_list *d_list; |
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33 long e_count; |
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34 |
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35 int more_globals; |
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36 ) |
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37 |
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38 #define TT this.hello |
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39 |
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40 #define FLAG_a 1 |
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41 #define FLAG_b 2 |
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42 #define FLAG_c 4 |
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43 #define FLAG_d 8 |
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44 #define FLAG_e 16 |
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45 |
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46 void hello_main(void) |
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47 { |
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48 printf("Hello world\n"); |
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49 |
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50 if (toys.optflags & FLAG_a) printf("Saw a\n"); |
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51 if (toys.optflags & FLAG_b) printf("b=%s\n", TT.b_string); |
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52 if (toys.optflags & FLAG_c) printf("c=%ld\n", TT.c_number); |
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53 while (TT.d_list) { |
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54 printf("d=%s\n", TT.d_list->arg); |
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55 TT.d_list = TT.d_list->next; |
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56 } |
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57 if (TT.e_count) printf("e was seen %ld times", TT.e_count); |
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58 |
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59 while (*toys.optargs) printf("optarg=%s\n", *(toys.optargs++)); |
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60 } |