39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* open_new.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/10/07 17:56:58 by jhalford #+# #+# */
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/* Updated: 2017/10/07 17:57:28 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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/*
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** If file already exists, create xxx(1) instead, etc up to 9
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*/
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int open_new(char *filename, int oflag)
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{
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char *fname;
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int fd;
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int i;
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int len;
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len = ft_strlen(filename);
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fname = ft_strnew(len + 4);
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ft_strcpy(fname, filename);
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i = 0;
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while (i < 10 && (fd = open(fname, oflag | O_CREAT | O_EXCL, 0644)) < 0
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&& errno == EEXIST)
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{
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fname[len] = '(';
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fname[len + 1] = ++i + '0';
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fname[len + 2] = ')';
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}
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ft_strdel(&fname);
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return (fd);
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}
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