39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_random_generator.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angouleme.fr +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/01/09 18:43:27 by cchauvet #+# #+# */
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/* Updated: 2023/01/09 20:09:33 by cchauvet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "extra.h"
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size_t ft_random_generator(size_t start, size_t stop)
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{
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int fd;
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char *line;
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int sum;
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size_t i;
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fd = open("/dev/random", O_RDONLY);
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if (fd == -1)
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return (0);
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line = ft_calloc(sizeof(char), 10001);
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if (line == NULL)
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return (0);
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read(fd, line, 10000);
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sum = 0;
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i = 0;
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while (i < ft_strlen(line))
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{
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sum += (unsigned int) line[i];
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i++;
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}
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free(line);
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return (sum % (stop - start));
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}
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