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pipex_processing_bonus.c
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pipex_processing_bonus.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* pipex_processing_bonus.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: melkholy <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/09/08 20:51:41 by melkholy #+# #+# */
/* Updated: 2022/09/12 23:58:11 by melkholy ### ########.fr */
/* */
/* ************************************************************************** */
#include "pipex_bonus.h"
char *ft_add_path(char *cmd, char **path, char *shell)
{
int count;
char *cmd_path;
count = -1;
cmd_path = NULL;
while (path[++count])
{
cmd_path = ft_strjoin(path[count], cmd);
if (!access(cmd_path, F_OK | X_OK))
break ;
free(cmd_path);
cmd_path = NULL;
}
count = -1;
while (path[++count])
free(path[count]);
free(path);
if (!cmd_path)
{
ft_printf("%s: command not found: %s\n", shell, cmd);
return (NULL);
}
return (cmd_path);
}
char *ft_get_path(char *cmd, t_pipe *buff)
{
int count;
char *str;
char **path;
count = -1;
str = NULL;
while (buff->envp[++count])
if (ft_strnstr(buff->envp[count], "PATH=", 5))
str = ft_strtrim(ft_strnstr(buff->envp[count], "PATH=", 5), \
"PATH=");
if (str)
path = ft_split(str, ':');
else
return (NULL);
if (str)
free(str);
count = -1;
while (path[++count])
{
str = path[count];
path[count] = ft_strjoin(path[count], "/");
free(str);
}
return (ft_add_path(cmd, path, buff->sh));
}
char **ft_check_path(char *cmd, t_pipe *buff)
{
char **cmd_path;
char *tmp;
char *str;
str = NULL;
if (ft_strchr(cmd, 39))
cmd = ft_found_q(cmd, &str);
if (ft_strchr(cmd, ' '))
{
cmd_path = ft_cmd_space(cmd, buff, str);
if (str)
ft_single_q(str, cmd_path);
}
else
{
tmp = ft_get_path(cmd, buff);
cmd_path = ft_split(tmp, '\0');
free(tmp);
if (str)
ft_single_q(str, cmd_path);
}
return (cmd_path);
}
void ft_last_proc(int num, t_pipe *buff, char **cmds_path)
{
int count;
count = -1;
while (++count < buff->procs)
{
if (num != count)
close(buff->pipefd[count][0]);
if (count)
close(buff->pipefd[count][1]);
}
dup2(buff->pipefd[num][0], 0);
close(buff->pipefd[num][0]);
dup2(buff->pipefd[0][1], 1);
close(buff->pipefd[0][1]);
if (cmds_path)
execve(cmds_path[0], cmds_path, buff->envp);
else
return ;
}
void ft_pipe_process(int num, t_pipe *buff, char **cmds_path)
{
int count;
count = -1;
while (++count < buff->procs)
{
if (num != count)
close(buff->pipefd[count][0]);
if (num + 1 != count)
close(buff->pipefd[count][1]);
}
dup2(buff->pipefd[num][0], 0);
close(buff->pipefd[num][0]);
dup2(buff->pipefd[num + 1][1], 1);
close(buff->pipefd[num + 1][1]);
if (cmds_path)
execve(cmds_path[0], cmds_path, buff->envp);
else
return ;
}