54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* command_getoutput.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: wescande <wescande@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/03/14 19:44:25 by wescande #+# #+# */
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/* Updated: 2017/03/22 22:25:49 by wescande ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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#define BUF_SIZE 1024
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static char *manage_output(int *fds)
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{
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int ret;
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char buf[BUF_SIZE + 1];
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char *output;
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output = NULL;
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close(fds[PIPE_WRITE]);
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while ((ret = read(fds[PIPE_READ], buf, BUF_SIZE)) > 0) {
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buf[ret] = 0;
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ft_strappend(&output, buf);
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}
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close(fds[PIPE_READ]);
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return (output);
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}
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char *command_getoutput(char *command)
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{
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int ret;
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int pid;
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int fds[2];
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char **av;
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if (!command)
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return (NULL);
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pipe(fds);
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if (!(pid = process_fork(NULL)))
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{
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close(fds[PIPE_READ]);
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dup2_close(fds[PIPE_WRITE], STDOUT);
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av = ft_sstradd(NULL, data_singleton()->argv[0]);
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av = ft_sstradd(av, "-c");
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av = ft_sstradd(av, command);
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execve(data_singleton()->argv[0], av, data_singleton()->env);
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exit(1);
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}
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waitpid(pid, &ret, WUNTRACED);
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return (manage_output(fds));
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}
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