48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* cmd_retr.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/11/02 15:32:28 by jhalford #+# #+# */
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/* Updated: 2017/11/10 17:32:16 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ftp_server.h"
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int cmd_retr(t_ftp *ftp, char **av)
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{
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int fd;
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struct stat buf;
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char *file;
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if ((fd = open(av[1], O_RDONLY)) < 0 || fstat(fd, &buf) < 0)
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return (ftp_ret(ftp, "550 file not found / no access"));
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if (buf.st_size)
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{
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if ((file = mmap(NULL, buf.st_size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE, fd, 0)) == MAP_FAILED)
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{
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close(fd);
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return (ftp_ret(ftp, "550 mmap failed"));
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}
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close(fd);
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if (dconn_open(ftp) < 0)
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{
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munmap(file, buf.st_size);
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return (-1);
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}
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ftp_sendraw(ftp->d_sock, file);
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dconn_close(ftp);
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munmap(file, buf.st_size);
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}
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else
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{
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if (dconn_open(ftp) < 0)
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return (-1);
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dconn_close(ftp);
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}
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return (0);
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}
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