97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tordner <[email protected]> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/04 15:49:05 by thorgal #+# #+# */
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/* Updated: 2025/06/02 23:59:34 by tordner ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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char *get_current_dir_name(void)
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{
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char pwd[PATH_MAX];
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char *dir;
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if (getcwd(pwd, PATH_MAX) == NULL)
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return (strdup("minishell"));
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dir = strrchr(pwd, '/');
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if (!dir || !dir[1])
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return (strdup(pwd));
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return (strdup(dir + 1));
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}
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char *ft_get_env_var(char **env, char *var)
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{
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int i;
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int len;
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i = 0;
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len = ft_strlen(var);
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while (env[i])
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{
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if (ft_strncmp(env[i], var, len) == 0 && env[i][len] == '=')
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return (&env[i][len + 1]);
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i++;
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}
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return (NULL);
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}
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char **copy_env(char **envp)
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{
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char **env;
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int i;
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i = 0;
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while (envp[i])
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i++;
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env = malloc(sizeof(char *) * (i + 1));
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if (!env)
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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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env[i] = strdup(envp[i]);
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if (!env[i])
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{
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while (--i >= 0)
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free(env[i]);
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free(env);
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return (NULL);
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}
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i++;
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}
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env[i] = NULL;
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return (env);
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}
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char **add_env_var(char **env, char *new_var)
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{
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char **new_env;
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int i;
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int count;
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count = 0;
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while (env[count])
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count++;
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new_env = malloc(sizeof(char *) * (count + 2));
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if (!new_env)
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return (NULL);
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i = 0;
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while (i < count)
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{
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new_env[i] = env[i];
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i++;
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}
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new_env[i] = ft_strdup(new_var);
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if (!new_env[i])
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return (free(new_env), NULL);
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new_env[i + 1] = NULL;
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free(env);
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return (new_env);
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}
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