98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* var.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/28 10:08:49 by lderidde #+# #+# */
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/* Updated: 2025/02/07 11:59:55 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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void free_null_ptr(void *ptr)
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{
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if (ptr != NULL)
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{
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free(ptr);
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ptr = NULL;
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}
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}
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char **copy_env_var(char **envp, int count)
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{
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char **new_env;
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int i;
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i = 0;
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new_env = malloc(sizeof(char *) * (count + 1));
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if (!new_env)
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return (NULL);
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new_env[count] = NULL;
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while (envp[i] && i < count)
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{
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new_env[i] = ft_strdup(envp[i]);
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free_null_ptr(envp[i]);
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i++;
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}
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free_null_ptr(envp);
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return (new_env);
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}
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int count_var(char **envp)
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{
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int i;
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i = 0;
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if (!envp)
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return (-1);
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while (envp[i])
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i++;
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return (i);
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}
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char *get_var_value(char *key, char **envp)
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{
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char *tmp;
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int i;
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tmp = ft_strjoin(key, "=");
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if (!tmp)
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return (NULL);
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i = 0;
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while (envp[i])
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{
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if (ft_strncmp(envp[i], tmp, ft_strlen(tmp)) == 0)
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{
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free_null_ptr(tmp);
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return (ft_strchr(envp[i], '=') + 1);
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}
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i++;
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}
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free_null_ptr(tmp);
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return (NULL);
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}
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bool is_valid_key(char *key, t_msh *msh)
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{
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char *tmp;
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int i;
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tmp = ft_strjoin(key, "=");
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if (!tmp)
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return (false);
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while (msh->env[i])
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{
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if (ft_strncmp(msh->env[i], tmp, ft_strlen(tmp)) == 0)
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{
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free_null_ptr(tmp);
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return (true);
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}
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i++;
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}
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free_null_ptr(tmp);
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return (false);
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}
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