1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* builtins_part_one.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/08/09 17:01:16 by chuhlig #+# #+# */
/* Updated: 2025/01/14 16:51:05 by chuhlig ### ########.fr */
/* */
/* ************************************************************************** */
#include "env.h"
int echo(char **av)
{
int i;
int f;
i = 1;
f = 1;
if (av[1] == NULL || av[1][0] == '\0')
{
write(1, "\n", 1);
return (1);
}
if (ft_strncmp(av[1], "-n", 3) == 0)
{
i++;
f = 0;
}
while (av[i])
{
write(1, av[i], ft_strlen(av[i]));
i++;
if (av[i])
write(1, " ", 1);
}
if (f)
write(1, "\n", 1);
return (0);
}
void exit_shell(t_env **env, int exit_status)
{
free_envlst(env);
exit(exit_status);
}
int builtin_exit(char **args, t_env **env)
{
int exit_status;
if (args[1])
exit_status = ft_atoi(args[1]);
else
exit_status = 0;
exit_shell(env, exit_status);
return (exit_status);
}
int unset(char **av, t_env **env)
{
t_env *current;
t_env *prev;
int i;
i = 0;
while (av[++i])
{
current = *env;
prev = NULL;
while (current)
{
if (ft_strcmp(current->name, av[i]) == 0)
{
if (prev)
prev->next = current->next;
else
*env = current->next;
free_env_node(current);
break ;
}
prev = current;
current = current->next;
}
}
return (0);
}
t_env *check_existing(t_env *env, char *av)
{
while (env)
{
if (ft_strcmp(env->name, av) == 0)
return (env);
env = env->next;
}
return (NULL);
}
int export(char **av, t_env **env)
{
char *tmp;
t_env *current;
int i;
current = NULL;
i = 0;
while (av[++i])
{
if ((ft_strchr(av[i], '=')))
{
tmp = ft_strchr(av[i], '=');
*tmp = '\0';
current = check_existing(*env, av[i]);
if (current)
free(current->value);
else
{
current = env_new(ft_strdup(av[i]));
current->next = *env;
*env = current;
}
current->value = ft_strdup(tmp + 1);
}
}
return (0);
}
|
