GCC Code Coverage Report

Directory: ./
File: src/separators/left_redirections.c
Date: 2024-06-05 00:36:48
Exec Total Coverage
Lines: 51 62 82.3%
Functions: 5 5 100.0%
Branches: 17 22 77.3%
Line Branch Exec Source
1 /*
2 ** EPITECH PROJECT, 2024
3 ** 42sh
4 ** File description:
5 ** The file containing the left redirections functions
6 */
7 /**
8 * @file left_redirections.c
9 * @brief The file containing the left redirections functions
10 */
11
12 #include "../../include/myshell.h"
13
14 /**
15 * @brief Error handling for the left double redirection
16 * @param mysh The shell structure
17 * @param input The input command
18 * @return <b>int</b> <u>1</u> if an error occurred, <u>0</u> otherwise
19 */
20 6 static int error_handling(mysh_t *mysh, input_command_t *input)
21 {
22
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 6 if (input->left[0] == '\0') {
23 ✗ my_fprintf(2, "Missing name for redirect.\n");
24 ✗ mysh->exit_status = 1;
25 ✗ return 1;
26 }
27
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 6 if (input->command[0] == '\0') {
28 ✗ my_fprintf(2, "Invalid null command.\n");
29 ✗ mysh->exit_status = 1;
30 ✗ return 1;
31 }
32 6 return 0;
33 }
34
35 /**
36 * @brief Execute the child process of the left double redirection
37 * @param mysh The shell structure
38 * @param input The input command
39 * @param fd The file descriptor
40 * @return <b>void</b>
41 */
42 6 static void child_process(mysh_t *mysh, input_command_t *input, int fd[2])
43 {
44 6 close(fd[1]);
45 6 dup2(fd[0], 0);
46 6 analyse_parentheses(mysh, input);
47 6 my_exit(mysh, mysh->exit_status, "");
48 ✗ }
49
50 /**
51 * @brief Read the input of the left double redirection and push it in a node
52 * @param mysh The shell structure
53 * @param input The input command
54 * @param node The node
55 * @return <b>void</b>
56 */
57 6 static void read_input(mysh_t *mysh, input_command_t *input, node_t **node)
58 {
59 6 int size = 0;
60 6 char *line = NULL;
61
62
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 27 while (size != EOF && my_strcmp(line, input->left) != 0) {
63
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 21 if (line != NULL)
64 15 my_push_back(node, my_strdup(line), STRING);
65
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 21 IS_ATTY_PRINT("? ");
66 21 FREE(line);
67 21 size = my_getline(&line, stdin);
68 21 set_command_in_history(mysh, line);
69 }
70 6 FREE(line);
71 6 }
72
73 /**
74 * @brief Execute the left double redirection
75 * @param mysh The shell structure
76 * @param input The input command
77 * @return <b>void</b>
78 */
79 6 void exec_left_double_redirection(mysh_t *mysh, input_command_t *input)
80 {
81 6 node_t *node = NULL;
82 6 int fd[2] = {0};
83 6 pid_t pid = 0;
84
85
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 6 if (error_handling(mysh, input))
86 ✗ return;
87 6 my_add_chr(input->left, '\n');
88 6 pipe(fd);
89 6 pid = fork();
90
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 12 if (pid == 0) {
91 6 child_process(mysh, input, fd);
92 } else {
93 6 close(fd[0]);
94 6 read_input(mysh, input, &node);
95
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 21 for (node_t *tmp = node; tmp != NULL; tmp = tmp->next)
96 15 my_fprintf(fd[1], "%s", tmp->data);
97 6 my_delete_list(&node);
98 6 close(fd[1]);
99 6 waitpid(pid, &mysh->exit_status, 0);
100 }
101 }
102
103 /**
104 * @brief Execute the left simple redirection
105 * @param mysh The shell structure
106 * @param input The input command
107 * @return <b>void</b>
108 */
109 35 void exec_left_simple_redirection(mysh_t *mysh, input_command_t *input)
110 {
111 int fd;
112
113
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 35 if (input->left[0] == '\0') {
114 ✗ my_fprintf(2, "Missing name for redirect.\n");
115 ✗ mysh->exit_status = 1;
116 ✗ return;
117 }
118 35 fd = open(input->left, O_RDONLY);
119
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 35 if (fd == -1) {
120 8 mysh->exit_status = 1;
121 8 my_fprintf(2, "%s: %s.\n", input->left, strerror(errno));
122 8 return;
123 }
124 27 mysh->saved_stdin = dup(0);
125 27 dup2(fd, 0);
126 27 close(fd);
127 27 analyse_parentheses(mysh, input);
128 27 dup2(mysh->saved_stdin, 0);
129 27 close(mysh->saved_stdin);
130 }
131