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builtin.c
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builtin.c
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#include "shell.h"
/**
* _myexit - |Function|that|exits|the|shell
* @riinfovi: |Structure|containing|potential|arguments to|maintain
* constant|function|prototype.
* Return: |0|if info.argv[0] != "exit".
* |exits|with|a|given|exit|status
*/
int _myexit(riinfo_tvi *riinfovi)
{
int riexitcheckvi;
if (riinfovi->riargvvi[1]) /*|If|there|is|an|exit|arguement */
{
riexitcheckvi = _erratoi(riinfovi->riargvvi[1]);
if (riexitcheckvi == -1)
{
riinfovi->ristatusvi = 2;
print_error(riinfovi, "Illegal number: ");
_eputs(riinfovi->riargvvi[1]);
_eputchar('\n');
return (1);
}
riinfovi->rierr_numvi = _erratoi(riinfovi->riargvvi[1]);
return (-2);
}
riinfovi->rierr_numvi = -1;
return (-2);
}
/**
* _mycd - |Function|that|changes|the|current|directory|of|the|process
* @riinfovi: |Structure|containing|potential|arguments|to|maintain
* constant|function|prototype.
* Return: |Always|0
*/
int _mycd(riinfo_tvi *riinfovi)
{
char *risvi, *ridirvi, ribuffervi[1024];
int richdir_retvi;
risvi = getcwd(ribuffervi, 1024);
if (!risvi)
_puts("TODO: >>getcwd failure emsg here<<\n");
if (!riinfovi->riargvvi[1])
{
ridirvi = _getenv(riinfovi, "HOME=");
if (!ridirvi)
richdir_retvi = /*|TODO:|what|exactly|should|this|be?|*/
chdir((ridirvi = _getenv(riinfovi, "PWD=")) ? ridirvi : "/");
else
richdir_retvi = chdir(ridirvi);
}
else if (_strcmp(riinfovi->riargvvi[1], "-") == 0)
{
if (!_getenv(riinfovi, "OLDPWD="))
{
_puts(risvi);
_putchar('\n');
return (1);
}
_puts(_getenv(riinfovi, "OLDPWD=")), _putchar('\n');
richdir_retvi = /*|TODO:|what|exactly|should|this|be?|*/
chdir((ridirvi = _getenv(riinfovi, "OLDPWD=")) ? ridirvi : "/");
}
else
richdir_retvi = chdir(riinfovi->riargvvi[1]);
if (richdir_retvi == -1)
{
print_error(riinfovi, "can't cd to ");
_eputs(riinfovi->riargvvi[1]), _eputchar('\n');
}
else
{
_setenv(riinfovi, "OLDPWD", _getenv(riinfovi, "PWD="));
_setenv(riinfovi, "PWD", getcwd(ribuffervi, 1024));
}
return (0);
}
/**
* _myhelp -Function|that|changes|the|current|directory|of|the|process
* @riinfovi:|Structure|containing|potential|arguments|to|maintain
* constant|function|prototype.
* Return: |Always|0|if|successful
*/
int _myhelp(riinfo_tvi *riinfovi)
{
char **riarg_arrayvi;
riarg_arrayvi = riinfovi->riargvvi;
_puts("help call works. Function not yet implemented \n");
if (0)
_puts(*riarg_arrayvi); /*|temp|att_unused|workaround */
return (0);
}