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Merge pull request #6 from jackoske/adding_export
Adding export
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| /* ************************************************************************** */ | ||
| /* */ | ||
| /* ::: :::::::: */ | ||
| /* additional_env.c :+: :+: :+: */ | ||
| /* +:+ +:+ +:+ */ | ||
| /* By: iverniho <[email protected]> +#+ +:+ +#+ */ | ||
| /* +#+#+#+#+#+ +#+ */ | ||
| /* Created: 2024/07/27 17:12:47 by iverniho #+# #+# */ | ||
| /* Updated: 2024/07/28 14:54:15 by iverniho ### ########.fr */ | ||
| /* */ | ||
| /* ************************************************************************** */ | ||
|
|
||
| #include "minishell.h" | ||
|
|
||
| void mini_env(t_mini *mini) | ||
| { | ||
| int i; | ||
|
|
||
| i = -1; | ||
| while (mini->envp[++i]) | ||
| { | ||
| ft_putstr_fd(mini->envp[i], STDOUT_FILENO); | ||
| ft_putchar_fd('\n', STDOUT_FILENO); | ||
| } | ||
| } | ||
|
|
||
| //checks if there is anything after '=' | ||
| int check_after_equal(char *str) | ||
| { | ||
| int i; | ||
|
|
||
| i = 0; | ||
| while (str[i] != '\0') | ||
| { | ||
| if (str[i] == '=') | ||
| { | ||
| if (str[i + 1] == '\0') | ||
| { | ||
| return (0); | ||
| } | ||
| } | ||
| i++; | ||
| } | ||
| return (1); | ||
| } | ||
|
|
||
| int is_already_exist(char *key, t_mini *mini) | ||
| { | ||
| int i; | ||
| char **temp; | ||
| char *temp_key; | ||
| char *key_to_compare; | ||
|
|
||
| i = -1; | ||
| key_to_compare = key; | ||
| if (ft_strchr(key_to_compare, '=')) | ||
| { | ||
| temp = ft_split(key_to_compare, '='); | ||
| key_to_compare = ft_strdup(temp[0]); | ||
| ft_free_2d_array(&temp); | ||
| } | ||
| while (mini->envp[++i]) | ||
| { | ||
| temp = ft_split(mini->envp[i], '='); | ||
| if (!temp[0]) | ||
| return (1); | ||
| temp_key = ft_strdup(temp[0]); | ||
| if (ft_strcmp(temp_key, key_to_compare) == 0) | ||
| return (free(temp_key), ft_free_2d_array(&temp), 1); | ||
| free(temp_key); | ||
| ft_free_2d_array(&temp); | ||
| } | ||
| return (0); | ||
| } | ||
|
|
||
| void replace_value(char *key, char *value, t_mini *mini) | ||
| { | ||
| int i; | ||
| char **temp; | ||
| char *temp_key; | ||
| char *new_env; | ||
|
|
||
| i = 0; | ||
| while (mini->envp[i]) | ||
| { | ||
| temp = ft_split(mini->envp[i], '='); | ||
| if (!temp[0]) | ||
| return ; | ||
| temp_key = ft_strdup(temp[0]); | ||
| if (ft_strcmp(temp_key, key) == 0) | ||
| { | ||
| new_env = ft_strjoin(key, ft_strjoin("=", value)); | ||
| free(mini->envp[i]); | ||
| mini->envp[i] = ft_strdup(new_env); | ||
| free(temp_key); | ||
| ft_free_2d_array(&temp); | ||
| return ; | ||
| } | ||
| free(temp_key); | ||
| ft_free_2d_array(&temp); | ||
| i++; | ||
| } | ||
| } | ||
|
|
||
| int is_special_char_in_env(char *str) | ||
| { | ||
| int i; | ||
|
|
||
| i = 0; | ||
| while (str[i] != '\0') | ||
| { | ||
| if (ft_isalpha(str[i]) || (i > 0 && ft_isdigit(str[i])) \ | ||
| || str[i] == '_' || str[i] == '=') | ||
| i++; | ||
| else if (str[i] == '=') | ||
| return (0); | ||
| else | ||
| { | ||
| ft_putstr_fd("minishell> export: `", 2); | ||
| ft_putstr_fd(str, 2); | ||
| ft_putstr_fd("': not a valid identifier\n", 2); | ||
| return (1); | ||
| } | ||
| } | ||
| return (0); | ||
| } | ||
|
|
||
| //does actions if there is only key, without any value | ||
| int add_env_key(char *str, t_mini *mini, int len) | ||
| { | ||
| char *value; | ||
| char **new_envp_array; | ||
| int i; | ||
| char *original_value; | ||
|
|
||
| value = ((i = -1), NULL); | ||
| if (is_already_exist(str, mini)) | ||
| return (1); | ||
| if (is_special_char_in_env(str)) | ||
| return (1); | ||
| value = ft_calloc(ft_strlen(str) + 2, sizeof(char)); | ||
| original_value = value; | ||
| while (*str) | ||
| *value++ = *str++; | ||
| *value = '='; | ||
| value++; | ||
| *value = '\0'; | ||
| new_envp_array = ft_calloc(len + 2, sizeof(char *)); | ||
| while (mini->envp[++i]) | ||
| new_envp_array[i] = ft_strdup(mini->envp[i]); | ||
| new_envp_array[i] = ft_strdup(original_value); | ||
| new_envp_array[i + 1] = NULL; | ||
| ft_free_2d_array(&(mini->envp)); | ||
| mini->envp = new_envp_array; | ||
| return (free(original_value), 1); | ||
| } | ||
|
|
||
| void copy_envp(t_mini *mini, char ***new_envp_array, char *new_env) | ||
| { | ||
| int i; | ||
|
|
||
| i = -1; | ||
| while (mini->envp[++i]) | ||
| (*new_envp_array)[i] = ft_strdup(mini->envp[i]); | ||
| (*new_envp_array)[i] = ft_strdup(new_env); | ||
| (*new_envp_array)[i + 1] = NULL; | ||
| ft_free_2d_array(&mini->envp); | ||
| mini->envp = *new_envp_array; | ||
| } | ||
|
|
||
| void mini_export(char **args, t_mini *mini) | ||
| { | ||
| char *key; | ||
| char *value; | ||
| char **temp; | ||
| char *new_env; | ||
| char **new_envp_array; | ||
|
|
||
| if (ft_2d_array_len(args) < 2) | ||
| return ; | ||
| if ((!ft_strchr(*(args + 1), '=')) || (!check_after_equal(*(args + 1)))) | ||
| if (add_env_key(*(args + 1), mini, ft_2d_array_len(mini->envp) + 1)) | ||
| return ; | ||
| value = NULL; | ||
| temp = ft_split(*(args + 1), '='); | ||
| key = ft_strdup(temp[0]); | ||
| value = ft_strdup(temp[1]); | ||
| ft_free_2d_array(&temp); | ||
| if (is_already_exist(key, mini)) | ||
| return (replace_value(key, value, mini), free(key), free(value)); | ||
| new_env = ft_strjoin(key, ft_strjoin("=", value)); | ||
| new_envp_array = ft_calloc((ft_2d_array_len(mini->envp) + 1) \ | ||
| + 2, sizeof(char *)); | ||
| if (!new_envp_array) | ||
| return (free(key), free(value), free(new_env)); | ||
| copy_envp(mini, &new_envp_array, new_env); | ||
| return (free(key), free(value), free(new_env)); | ||
| } |
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