Mercurial > hg > toybox
annotate toys/lsb/dmesg.c @ 888:c5e80c74ec6c
Fix conflicting types for show_help().
author | Rob Landley <rob@landley.net> |
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date | Mon, 29 Apr 2013 10:53:09 -0500 |
parents | 786841fdb1e0 |
children | d26f235323db |
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786841fdb1e0
Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
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1 /* dmesg.c - display/control kernel ring buffer. |
169 | 2 * |
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Add comments about SUSv3 specs (or lack thereof).
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3 * Copyright 2006, 2007 Rob Landley <rob@landley.net> |
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Add comments about SUSv3 specs (or lack thereof).
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4 * |
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Regularize command headers, update links to standards documents.
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5 * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/dmesg.html |
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Zap toys/Config.in and instead create generated/Config.in from contents of
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6 |
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Move NEWTOY() list from end of toylist.h to generated/newtoys.h.
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7 USE_DMESG(NEWTOY(dmesg, "s#n#c", TOYFLAG_BIN)) |
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Move NEWTOY() list from end of toylist.h to generated/newtoys.h.
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8 |
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9 config DMESG |
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10 bool "dmesg" |
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11 default y |
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12 help |
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13 usage: dmesg [-n level] [-s bufsize] | -c |
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14 |
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Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
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15 Print or control the kernel ring buffer. |
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16 |
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17 -n Set kernel logging level (1-9). |
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18 -s Size of buffer to read (in bytes), default 16384. |
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19 -c Clear the ring buffer after printing. |
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20 */ |
169 | 21 |
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New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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22 #define FOR_dmesg |
169 | 23 #include "toys.h" |
24 #include <sys/klog.h> | |
25 | |
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New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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26 GLOBALS( |
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27 long level; |
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28 long size; |
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29 ) |
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Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS()
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30 |
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Change command main() functions to return void, and exit(toys.exitval) from
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31 void dmesg_main(void) |
169 | 32 { |
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33 // For -n just tell kernel to which messages to keep. |
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34 if (toys.optflags & 2) { |
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35 if (klogctl(8, NULL, TT.level)) error_exit("klogctl"); |
786841fdb1e0
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36 } else { |
786841fdb1e0
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37 int size, i, last = '\n'; |
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38 char *data; |
169 | 39 |
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40 // Figure out how much data we need, and fetch it. |
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41 size = TT.size; |
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42 if (size<2) size = 16384; |
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43 data = xmalloc(size); |
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44 size = klogctl(3 + (toys.optflags&1), data, size); |
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45 if (size < 0) error_exit("klogctl"); |
169 | 46 |
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Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
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47 // Display data, filtering out level markers. |
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48 for (i=0; i<size; ) { |
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49 if (last=='\n' && data[i]=='<') i += 3; |
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50 else xputc(last = data[i++]); |
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51 } |
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52 if (last!='\n') xputc('\n'); |
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53 if (CFG_TOYBOX_FREE) free(data); |
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54 } |
169 | 55 } |