1 /*
2 lorem.c - lorem ipsum generator to stdout
3 Copyright (C) Yann Collet 2024
4
5 GPL v2 License
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20
21 You can contact the author at :
22 - LZ4 source repository : https://github.com/lz4/lz4
23 - Public forum : https://groups.google.com/forum/#!forum/lz4c
24 */
25
26 /* Implementation notes:
27 * Generates a stream of Lorem ipsum paragraphs to stdout,
28 * up to the requested size, which can be very large (> 4 GB).
29 * Note that, beyond 1 paragraph, this generator produces
30 * a different content than LOREM_genBuffer (even when using same seed).
31 */
32
33 #include "platform.h" /* Compiler options, SET_BINARY_MODE */
34 #include "loremOut.h"
35 #include "lorem.h" /* LOREM_genBlock */
36 #include <stdio.h>
37 #include <assert.h>
38
39
40 #define MIN(a, b) ((a) < (b) ? (a) : (b))
41 #define LOREM_BLOCKSIZE (2 << 10)
LOREM_genOut(unsigned long long size,unsigned seed)42 void LOREM_genOut(unsigned long long size, unsigned seed)
43 {
44 char buff[LOREM_BLOCKSIZE] = {0};
45 unsigned long long total = 0;
46 size_t genBlockSize = (size_t)MIN(size, LOREM_BLOCKSIZE);
47
48 /* init */
49 SET_BINARY_MODE(stdout);
50
51 /* Generate Ipsum text, one paragraph at a time */
52 while (total < size) {
53 size_t generated = LOREM_genBlock(buff, genBlockSize, seed++, total == 0, 0);
54 assert(generated <= genBlockSize);
55 total += generated;
56 assert(total <= size);
57 fwrite(buff, 1, generated, stdout); /* note: should check potential write error */
58 if (size - total < genBlockSize)
59 genBlockSize = (size_t)(size - total);
60 }
61 assert(total == size);
62 }
63