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handle_error_bultins.c
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#include "shell.h"
char *env_error(char **args);
char *alias_error(char **args);
char *exit_error(char **args);
char *cd_error(char **args);
char *syntax_error(char **args);
/**
* env_error - This function displays an error message
* related to shell_environment.
*
* @args: An array of arguments.
*
* Return: The error msg
*/
char *env_error(char **args)
{
char *err, *h_str;
int length;
h_str = _atoi(hist);
if (!h_str)
return (NULL);
args--;
length = _strlen(name) + _strlen(h_str) + _strlen(args[0]) + 45;
err = malloc(sizeof(char) * (length + 1));
if (!err)
{
free(h_str);
return (NULL);
}
_strcpy(err, name);
_strcat(err, ": ");
_strcat(err, h_str);
_strcat(err, ": ");
_strcat(err, args[0]);
_strcat(err, ": Failed to add or remove from the environment\n");
free(h_str);
return (err);
}
/**
* alias_error - This function displays an error message
* related to shell alias handling
*
* @args: An array of arguments
*
* Return: The error msg
*/
char *alias_error(char **args)
{
char *err;
int length;
length = _strlen(name) + _strlen(args[0]) + 13;
err = malloc(sizeof(char) * (length + 1));
if (!err)
return (NULL);
_strcpy(err, "alias: ");
_strcat(err, args[0]);
_strcat(err, " Command not found\n");
return (err);
}
/**
* exit_error - This function displays an error message
* related to shell_exit.
*
* @args: An array of arguments
*
* Return: The error msg.
*/
char *exit_error(char **args)
{
char *err, *h_str;
int length;
h_str = _atoi(hist);
if (!h_str)
return (NULL);
length = _strlen(name) + _strlen(h_str) + _strlen(args[0]) + 27;
err = malloc(sizeof(char) * (length + 1));
if (!err)
{
free(h_str);
return (NULL);
}
_strcpy(err, name);
_strcat(err, ": ");
_strcat(err, h_str);
_strcat(err, ": exit: Illegal number: ");
_strcat(err, args[0]);
_strcat(err, "\n");
free(h_str);
return (err);
}
/**
* cd_error - This function displays an error message
* related to changing directories in the shell.
*
* @args: An array of arguments
*
* Return: The error msg.
*/
char *cd_error(char **args)
{
char *err, *h_str;
int length;
h_str = _atoi(hist);
if (!h_str)
return (NULL);
if (args[0][0] == '-')
args[0][2] = '\0';
length = _strlen(name) + _strlen(h_str) + _strlen(args[0]) + 24;
err = malloc(sizeof(char) * (length + 1));
if (!err)
{
free(h_str);
return (NULL);
}
_strcpy(err, name);
_strcat(err, ": ");
_strcat(err, h_str);
if (args[0][0] == '-')
_strcat(err, ": cd: No directory found");
else
_strcat(err, ": cd: can not cd to ");
_strcat(err, args[0]);
_strcat(err, "\n");
free(h_str);
return (err);
}
/**
* syntax_error - This function displays an error message for syntax errors.
*
* @args: An array of arguments
*
* Return: The error msg.
*/
char *syntax_error(char **args)
{
char *err, *h_str;
int length;
h_str = _atoi(hist);
if (!h_str)
return (NULL);
length = _strlen(name) + _strlen(h_str) + _strlen(args[0]) + 33;
err = malloc(sizeof(char) * (length + 1));
if (!err)
{
free(h_str);
return (NULL);
}
_strcpy(err, name);
_strcat(err, ": ");
_strcat(err, h_str);
_strcat(err, ": Syntax error!: \"");
_strcat(err, args[0]);
_strcat(err, "\" Not correct\n");
free(h_str);
return (err);
}