simple_shell/_errors.c at main · supapraisekb/simple_shell · GitHub

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#include "shell.h"

/**
* num_mismatch - Write error message
* @command_name: The name of the command that resulted in the error
* @cmd_line_numb: The user's typed command
* @env_var: Linked list containing environmental variables to write shell name
* Return: void
*/

void num_mismatch(char *command_name, int cmd_line_numb, list_t *env_var)
{
int k;
char *shell_name = NULL;
char *cmd_num_strn = NULL;

shell_name = _getenv("_", env_var);
k = 0;
while (shell_name[k] != '\0')
{
k++;
}
write(STDOUT_FILENO, shell_name, k);
free(shell_name);

write(STDOUT_FILENO, ": ", 2);

cmd_num_strn = conv_to_str(cmd_line_numb);
k = 0;
while (cmd_num_strn[k] != '\0')
{
k++;
}
write(STDOUT_FILENO, cmd_num_strn, k);
free(cmd_num_strn);

write(STDOUT_FILENO, ": ", 2);
write(STDOUT_FILENO, command_name, _strlen(command_name));
write(STDOUT_FILENO, ": number of arguments does not match\n", 37);
}


/**
* print_not_found - writes the command not found error message to stdout
* @inp_cmd: command inputed by the user (argv)
* @cmd_line_numb: the command arg that resulted in the error (argc)
* @env_var: the environment variable list
*/
void print_not_found(char *inp_cmd, int cmd_line_numb, list_t *env_var)
{
int k;
char *name_of_shell;
char *cmd_num_strn;

name_of_shell = _getenv("_", env_var);
k = 0;

while (name_of_shell[k] != '\0')
{
k++;
}

write(STDOUT_FILENO, name_of_shell, k);
free(name_of_shell);

write(STDOUT_FILENO, ": ", 2);

cmd_num_strn = conv_to_str(cmd_line_numb);
k = 0;

while (cmd_num_strn[k] != '\0')
{
k++;
}

write(STDOUT_FILENO, cmd_num_strn, k);
free(cmd_num_strn);

write(STDOUT_FILENO, ": ", 2);

k = 0;
while (inp_cmd[k] != '\0')
{
k++;
}

write(STDOUT_FILENO, inp_cmd, k);
write(STDOUT_FILENO, ": ", 2);
write(STDOUT_FILENO, "command not found\n", 19);
}


/**
* cd_error - Write error message ("sh: 2: cd: can't cd to xyz")
* @dest: User's typed argument after the "cd" command
* @cmd_line_numb: The nth user's typed command
* @env_var: Linked list containing environmental variables to write shell name
*/
void cd_error(char *dest, int cmd_line_numb, list_t *env_var)
{
int k;
char *shell_name = NULL;
char *cmd_num_strn = NULL;

shell_name = _getenv("_", env_var);
k = 0;
while (shell_name[k] != '\0')
{
k++;
}
write(STDOUT_FILENO, shell_name, k);
free(shell_name);

write(STDOUT_FILENO, ": ", 2);

cmd_num_strn = conv_to_str(cmd_line_numb);
k = 0;
while (cmd_num_strn[k] != '\0')
{
k++;
}
write(STDOUT_FILENO, cmd_num_strn, k);
free(cmd_num_strn);

write(STDOUT_FILENO, ": ", 2);
write(STDOUT_FILENO, "cd: invalid destination directory", 34);

k = 0;
while (dest[k] != '\0')
{
k++;
}
write(STDOUT_FILENO, dest, k);
write(STDOUT_FILENO, "\n", 1);
}

/**
* _exit_error_msg - outputs an error message for wrong exit number
* @cmd_arg: argument typed after the exit command
* @cmd_line_numb: the command at the ith index
* @env_var: environment variable to produce shell name
*/
void _exit_error_msg(char *cmd_arg, int cmd_line_numb, list_t *env_var)
{
char *shell_name = _getenv("_", env_var), cmd_line_num_strn[12];
int len_shell_name = 0, cmd_arg_len = 0, temp = cmd_line_numb, index;
int len_cmd_line_num_strn = 0;

while (shell_name[len_shell_name] != '\0')
len_shell_name++;

while (cmd_arg[cmd_arg_len] != '\0')
cmd_arg_len++;

do {
temp /= 10;
len_cmd_line_num_strn++;
} while (temp != 0);

for (index = len_cmd_line_num_strn - 1; index >= 0; index--)
{
cmd_line_num_strn[index] = '0' + cmd_line_numb % 10;
cmd_line_numb /= 10;
}
write(STDOUT_FILENO, shell_name, len_shell_name);
write(STDOUT_FILENO, ": ", 2);
write(STDOUT_FILENO, cmd_line_num_strn, len_cmd_line_num_strn);
write(STDOUT_FILENO, ": ", 2);
write(STDOUT_FILENO, "exit: wrong exit number: ", 26);
write(STDOUT_FILENO, cmd_arg, cmd_arg_len);
write(STDOUT_FILENO, "\n", 1);

free(shell_name);
}