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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* export.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/04/01 17:11:34 by charles #+# #+# */
/* Updated: 2020/07/19 18:46:48 by charles ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file export.c
** \brief `export` builtin
*/
#include "minishell.h"
static void st_put_declare_x(char *s)
{
char *equal_ptr;
// could use errorf on stdout
if (s == NULL)
return ;
ft_putstr("declare -x ");
if ((equal_ptr = ft_strchr(s, '=')) == NULL)
equal_ptr = ft_strchr(s, '\0');
write(STDOUT_FILENO, s, equal_ptr - s);
ft_putchar('=');
ft_putchar('"');
ft_putstr(equal_ptr + 1);
ft_putchar('"');
ft_putchar('\n');
}
int builtin_export(char **argv, t_env env)
{
int status;
size_t i;
char *equal_ptr;
bool skip;
if (argv[1] == NULL)
{
ft_veciter(env, (void (*)(void*))st_put_declare_x);
return (0);
}
status = 0;
i = 0;
while (argv[++i] != NULL)
{
skip = (equal_ptr = ft_strchr(argv[i], '=')) == NULL;
if (!skip)
*equal_ptr = '\0';
if (!utils_valid_identifier(argv[i]))
{
if (!skip)
*equal_ptr = '=';
errorf("export: `%s': not a valid identifier\n", argv[i]);
status = 1;
continue;
}
if (skip)
continue;
if (env_export(env, argv[i], equal_ptr + 1) == NULL)
return (127); // malloc error
}
return (status);
}
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