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77fe0b9c | 1 | /* Copyright (C) 1993, 1997, 2002 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
96aa2d94 | 3 | |
41bdb6e2 AJ |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
96aa2d94 | 8 | |
41bdb6e2 AJ |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
40a55d20 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 12 | Lesser General Public License for more details. |
96aa2d94 | 13 | |
41bdb6e2 AJ |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. | |
96aa2d94 | 18 | |
41bdb6e2 AJ |
19 | As a special exception, if you link the code in this file with |
20 | files compiled with a GNU compiler to produce an executable, | |
21 | that does not cause the resulting executable to be covered by | |
22 | the GNU Lesser General Public License. This exception does not | |
23 | however invalidate any other reasons why the executable file | |
24 | might be covered by the GNU Lesser General Public License. | |
25 | This exception applies to code released by its copyright holders | |
26 | in files containing the exception. */ | |
96aa2d94 RM |
27 | |
28 | #include "libioP.h" | |
29 | ||
30 | #define PADSIZE 16 | |
31 | static char const blanks[PADSIZE] = | |
32 | {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; | |
33 | static char const zeroes[PADSIZE] = | |
34 | {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; | |
35 | ||
36 | _IO_ssize_t | |
40a55d20 UD |
37 | _IO_padn (fp, pad, count) |
38 | _IO_FILE *fp; | |
39 | int pad; | |
40 | _IO_ssize_t count; | |
96aa2d94 RM |
41 | { |
42 | char padbuf[PADSIZE]; | |
43 | const char *padptr; | |
40a55d20 UD |
44 | int i; |
45 | _IO_size_t written = 0; | |
46 | _IO_size_t w; | |
68dbb3a6 | 47 | |
96aa2d94 RM |
48 | if (pad == ' ') |
49 | padptr = blanks; | |
50 | else if (pad == '0') | |
51 | padptr = zeroes; | |
52 | else | |
53 | { | |
40a55d20 UD |
54 | for (i = PADSIZE; --i >= 0; ) |
55 | padbuf[i] = pad; | |
96aa2d94 RM |
56 | padptr = padbuf; |
57 | } | |
58 | for (i = count; i >= PADSIZE; i -= PADSIZE) | |
59 | { | |
40a55d20 | 60 | w = _IO_sputn (fp, padptr, PADSIZE); |
96aa2d94 RM |
61 | written += w; |
62 | if (w != PADSIZE) | |
63 | return written; | |
64 | } | |
68dbb3a6 | 65 | |
96aa2d94 RM |
66 | if (i > 0) |
67 | { | |
40a55d20 | 68 | w = _IO_sputn (fp, padptr, i); |
96aa2d94 RM |
69 | written += w; |
70 | } | |
71 | return written; | |
72 | } | |
77fe0b9c | 73 | INTDEF(_IO_padn) |