67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
#include "minishell.h"
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int ft_file_is_readable(char *path)
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{
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int readable;
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int fd;
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fd = open(path, O_RDONLY);
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if (fd == -1)
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{
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ft_eprintf("minishell: %s: No such file or directory\n", path);
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return (0);
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}
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readable = read(fd, "", 0);
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if (readable == -1)
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{
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ft_eprintf("minishell: %s: Permission denied\n", path);
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return (0);
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}
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close(fd);
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return (1);
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}
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int ft_file_is_writeable(char *path)
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{
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int writeable;
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int fd;
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fd = open(path, O_WRONLY | O_CREAT, 0644);
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if (fd == -1)
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{
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ft_eprintf("minishell: %s: Permission denied\n", path);
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return (0);
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}
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writeable = write(fd, "", 0);
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if (writeable == -1)
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{
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ft_eprintf("minishell: %s: Permission denied\n", path);
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return (0);
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}
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close(fd);
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return (1);
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}
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char *ft_get_file_path(char *infile)
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{
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size_t i;
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size_t n;
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n = 1;
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while (infile[-n] == infile[-1])
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n++;
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i = 0;
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while (infile[i] == ' ')
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i++;
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if (infile[i] == '\0' || infile[i] == '>' || infile[i] == '<')
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{
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ft_eprintf("minishell: syntax error near ");
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if ((infile[0] == '<' && n > 3) || (infile[0] == '>' && n > 2))
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ft_eprintf("unexpected token `%c`\n", infile[i - 1]);
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else
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ft_eprintf("unexpected token `newline`\n");
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return (NULL);
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}
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return (ft_getstr(infile, i + 1));
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}
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