78 lines
1.4 KiB
C
78 lines
1.4 KiB
C
#include "minishell.h"
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#define CDOPT_L 0b001
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#define CDOPT_P 0b010
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#define HAS_CDOPT_P(x) (x & CD_OPT_P)
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#define HAS_CDOPT_L(x) (x & CD_OPT_L)
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#define CDERR_1 "cd: string not in pwd: %s\n"
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#define CDERR_2 "cd: no such file or directory: %s\n"
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int builtin_cd(char **av, char ***env_p)
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{
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int i;
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int opts;
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char *target;
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char *oldpwd[2];
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char *pwd[2];
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opts = 0;
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i = builtin_cd_opts(av, &opts);
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target = builtin_cd_special(av + i, *env_p);
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oldpwd[0] = ft_strdup("OLDPWD");
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oldpwd[1] = getcwd(NULL, 0);
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if (chdir(target))
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{
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ft_printf(CDERR_2, target);
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return (1);
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}
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else if (target != av[i])
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ft_printf("%s\n", target);
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pwd[0] = ft_strdup("PWD");
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pwd[1] = getcwd(NULL, 0);
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builtin_setenv(pwd, env_p);
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builtin_setenv(oldpwd, env_p);
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/* { */
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/* printf(CDERR_1, av[-i]); */
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/* return (1) */
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/* } */
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return (0);
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}
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char *builtin_cd_special(char **av, char **env)
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{
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char *target;
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if (!*av)
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target = ft_env_getval(env, "HOME");
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else if (ft_strcmp(*av, "-") == 0)
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target = ft_env_getval(env, "OLDPWD");
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else
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target = *av;
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return (target);
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}
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int builtin_cd_opts(char **av, int *opts)
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{
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int i;
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int j;
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int tmp_opts;
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i = 1;
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tmp_opts = 0;
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if (av)
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while (av[i] && av[i][0] == '-' && av[i][1])
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{
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j = 0;
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while (av[i][++j])
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{
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if (av[i][j] == 'P')
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tmp_opts |= CDOPT_P;
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else if (av[i][j] == 'L')
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tmp_opts |= CDOPT_L;
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else
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return (i);
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}
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*opts |= tmp_opts;
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i++;
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}
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return (i);
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}
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