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comparison toys/other/truncate.c @ 694:786841fdb1e0

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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. The actual code should be the same afterward, this is just cosmetic refactoring.
author Rob Landley <rob@landley.net>
date Tue, 13 Nov 2012 17:14:08 -0600
parents 7e846e281e38
children 6cc69be43c42
comparison
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693:4a5a250e0633 694:786841fdb1e0
1 /* vi: set sw=4 ts=4: 1 /* truncate.c - set file length, extending sparsely if necessary
2 *
3 * truncate.c - set file length, extending sparsely if necessary
4 * 2 *
5 * Copyright 2011 Rob Landley <rob@landley.net> 3 * Copyright 2011 Rob Landley <rob@landley.net>
6 4
7 USE_TRUNCATE(NEWTOY(truncate, "<1s#|c", TOYFLAG_BIN)) 5 USE_TRUNCATE(NEWTOY(truncate, "<1s#|c", TOYFLAG_BIN))
8 6
9 config TRUNCATE 7 config TRUNCATE
10 bool "truncate" 8 bool "truncate"
11 default y 9 default y
12 help 10 help
13 usage: truncate [-c] -s file... 11 usage: truncate [-c] -s file...
14 Set length of file(s), extending sparsely if necessary.
15 12
16 -c Don't create file if it doesn't exist. 13 Set length of file(s), extending sparsely if necessary.
17 -s New size 14
15 -c Don't create file if it doesn't exist.
16 -s New size
18 */ 17 */
19 18
20 #define FOR_truncate 19 #define FOR_truncate
21 #include "toys.h" 20 #include "toys.h"
22 21
23 GLOBALS( 22 GLOBALS(
24 long size; 23 long size;
25 ) 24 )
26 25
27 static void do_truncate(int fd, char *name) 26 static void do_truncate(int fd, char *name)
28 { 27 {
29 if (fd<0) return; 28 if (fd<0) return;
30 if (ftruncate(fd, TT.size)) { 29 if (ftruncate(fd, TT.size)) {
31 perror_msg("failed to set '%s' to '%ld'", name, TT.size); 30 perror_msg("failed to set '%s' to '%ld'", name, TT.size);
32 toys.exitval = EXIT_FAILURE; 31 toys.exitval = EXIT_FAILURE;
33 } 32 }
34 } 33 }
35 34
36 void truncate_main(void) 35 void truncate_main(void)
37 { 36 {
38 int cr = !(toys.optflags&1); 37 int cr = !(toys.optflags&1);
39 38
40 // Create files with mask rwrwrw. 39 // Create files with mask rwrwrw.
41 // Nonexistent files are only an error if we're supposed to create them. 40 // Nonexistent files are only an error if we're supposed to create them.
42 loopfiles_rw(toys.optargs, O_WRONLY|(cr ? O_CREAT : 0), 0666, cr, 41 loopfiles_rw(toys.optargs, O_WRONLY|(cr ? O_CREAT : 0), 0666, cr,
43 do_truncate); 42 do_truncate);
44 } 43 }