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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_p_lcom.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdlib.h>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include "ft_s_lcom.h"
#include "ft_s_struct.h"
static void
ft_check_redir_file(t_lcom **link)
{
int32_t fd;
fd = 0;
if ((*link)->redir == -1 && (fd = open((*link)->rdrpath, O_RDONLY)) == -1)
{
/* TODO: better error handling | DON'T EXEC CMD | retval 1 */
if (errno == ENOENT)
ft_dprintf(STDERR_FILENO,
"minishell: %s: No such file or directory\n", (*link)->rdrpath);
else if (errno == EACCES)
ft_dprintf(STDERR_FILENO,
"minishell: %s: Permission denied\n", (*link)->rdrpath);
return ;
}
else if ((*link)->redir == 1
&& (fd = open((*link)->rdrpath, O_CREAT | O_WRONLY, 0644)) == -1)
{
/* TODO: same as above */
if (errno == EACCES)
ft_dprintf(STDERR_FILENO,
"minishell: %s: Permission denied\n", (*link)->rdrpath);
}
/* TODO: >> redir file check */
close(fd);
}
static void
ft_rdr_err_check(char *ptr,
t_lcom **link)
{
if ((*link)->redir == -1 && ft_ischarset(">", *(ptr + 1)))
{
/* TODO: syntax err */
}
else if ((*link)->redir == 1 && ft_ischarset("<", *(ptr + 1)))
{
}
else if ((*link)->redir == 1 && ft_ischarset("<>", *(ptr + 1)))
{
}
}
static int8_t
ft_get_rdrpath(char *ptr,
t_lcom **link)
{
char *p_rdrpath;
ptr += ((*link)->redir == 2) ? (2) : (1);
if (!((*link)->rdrpath =
(char*)malloc((ft_strlen(ptr) + 1) * sizeof(char))))
{
return (-1);
}
p_rdrpath = (*link)->rdrpath;
while (*ptr)
{
if (*ptr != ' ')
{
*p_rdrpath = *ptr;
p_rdrpath++;
}
ptr++;
}
*p_rdrpath = '\0';
return (0);
}
int8_t
ft_get_redir(const char word[],
t_lcom **link)
{
char *ptr;
ptr = (char *)word;
while (*ptr)
{
if (*ptr == '<')
{
(*link)->redir = -1;
break ;
}
if (*ptr == '>')
{
(*link)->redir = (*(ptr + 1) == '>') ? (2) : (1);
break ;
}
ptr++;
/* TODO: handle correctly multiples "msh ~> echo qwe > qwe > asd >> zxc > qweasdzxc" */
/* hint: bash only handles the last onke */
}
if ((*link)->redir != 0)
{
ft_rdr_err_check(ptr, link);
if (ft_get_rdrpath(ptr, link) != 0)
return (-1);
/* TODO: don't check files here, check at run-time */
ft_check_redir_file(link);
}
return (0);
}
int8_t
ft_p_lcom(const char line[],
const uint64_t count,
t_msh *msh)
{
uint64_t i;
t_lcom *link;
char **words;
i = 0;
if (!(words = ft_split(line, ';')))
return (-1);
while (i <= count)
{
if (!(link = ft_lcom_new(words[i])))
{
return (-1);
}
ft_lcom_add_back(&msh->curr, link);
i++;
}
ft_delwords(words);
return (0);
}
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