85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* export.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: syd <syd@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/02/28 23:26:59 by sadjigui #+# #+# */
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/* Updated: 2022/04/19 23:11:33 by syd ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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int check_variable(char *variable)
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{
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int i;
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i = 0;
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if (!ft_isalpha(variable[i]) && variable[i] != '_')
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return (1);
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i++;
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while (variable[i] && variable[i] != '=')
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{
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if (!ft_isalnum(variable[i]) && variable[i] != '_')
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return (1);
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i++;
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}
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return (0);
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}
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int reatribute_variable(t_s_cmd *cmd, int index, char *dest, char *unset)
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{
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free (cmd->big_cmd->env[index]);
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cmd->big_cmd->env[index] = dest;
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free(unset);
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return (check_return(cmd, 0));
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}
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int ft_export_variable(t_s_cmd *cmd, char *variable)
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{
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char *dest;
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char *unset;
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int index;
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if (check_variable(variable) == 1)
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{
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ft_putstr_fd("Minishell: export: `", 2);
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ft_putstr_fd(variable, 2);
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ft_putstr_fd("': not a valid identifier\n", 2);
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return (check_return(cmd, 1));
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}
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dest = ft_strdup(variable);
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unset = ft_substr(dest, 0, find_len(dest, 0, '='));
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index = find_it(cmd->big_cmd->env, unset);
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if (index != -1)
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return (reatribute_variable(cmd, index, dest, unset));
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register_env(cmd, dest);
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if (dest)
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free(dest);
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if (unset)
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free(unset);
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return (check_return(cmd, 0));
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}
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int ft_export(t_s_cmd *cmd)
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{
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int i;
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int j;
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i = 1;
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j = 0;
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if (!cmd->args[i])
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lone_export(cmd);
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else if (cmd->args[i])
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{
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while (cmd->args[i])
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{
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j = ft_export_variable(cmd, cmd->args[i]);
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i++;
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}
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}
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return (j);
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}
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