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#include <string.h> |
#include <string.h> |
| 21 |
#include <time.h> |
#include <time.h> |
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#include <unistd.h> |
#include <unistd.h> |
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#include <sys/epoll.h> |
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| 23 |
#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
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#include <sys/select.h> |
#include <sys/select.h> |
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#include <libssh/callbacks.h> |
#include <libssh/callbacks.h> |
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#include <libssh/libssh.h> |
#include <libssh/libssh.h> |
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#include <libssh/server.h> |
#include <libssh/server.h> |
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#ifdef HAVE_SYS_EPOLL_H |
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#include <sys/epoll.h> |
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#else |
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#include <poll.h> |
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#endif |
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enum _io_constant_t |
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{ |
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OUTPUT_BUF_SIZE = 8192, |
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}; |
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const char BBS_default_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
const char BBS_default_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
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char stdio_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
char stdio_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
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#ifdef HAVE_SYS_EPOLL_H |
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// epoll for STDIO |
// epoll for STDIO |
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static int stdin_epollfd = -1; |
static int stdin_epollfd = -1; |
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static int stdout_epollfd = -1; |
static int stdout_epollfd = -1; |
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static int stdin_flags; |
#endif |
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static int stdout_flags; |
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static int stdin_flags = 0; |
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static int stdout_flags = 0; |
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// static input / output buffer |
// static input / output buffer |
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static char stdin_buf[LINE_BUFFER_LEN]; |
static char stdin_buf[LINE_BUFFER_LEN]; |
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static char stdout_buf[BUFSIZ]; |
static char stdout_buf[OUTPUT_BUF_SIZE]; |
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static int stdin_buf_len = 0; |
static int stdin_buf_len = 0; |
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static int stdout_buf_len = 0; |
static int stdout_buf_len = 0; |
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static int stdin_buf_offset = 0; |
static int stdin_buf_offset = 0; |
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static int stdout_buf_offset = 0; |
static int stdout_buf_offset = 0; |
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static char stdin_conv[LINE_BUFFER_LEN * 2]; |
static char stdin_conv[LINE_BUFFER_LEN * 2]; |
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static char stdout_conv[BUFSIZ * 2]; |
static char stdout_conv[OUTPUT_BUF_SIZE * 2]; |
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static int stdin_conv_len = 0; |
static int stdin_conv_len = 0; |
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static int stdout_conv_len = 0; |
static int stdout_conv_len = 0; |
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static int stdin_conv_offset = 0; |
static int stdin_conv_offset = 0; |
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int io_init(void) |
int io_init(void) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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struct epoll_event ev; |
struct epoll_event ev; |
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if (stdin_epollfd == -1) |
if (stdin_epollfd == -1) |
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return -1; |
return -1; |
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} |
} |
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// Set STDOUT as non-blocking |
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stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
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} |
} |
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#else |
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if (stdin_flags == 0) |
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{ |
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stdin_flags = fcntl(STDIN_FILENO, F_GETFL, 0); |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags | O_NONBLOCK); |
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} |
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if (stdout_flags == 0) |
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{ |
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stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
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} |
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#endif |
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return 0; |
return 0; |
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} |
} |
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void io_cleanup(void) |
void io_cleanup(void) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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if (stdin_epollfd != -1) |
if (stdin_epollfd != -1) |
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{ |
{ |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
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stdin_flags = 0; |
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if (close(stdin_epollfd) < 0) |
if (close(stdin_epollfd) < 0) |
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{ |
{ |
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if (stdout_epollfd != -1) |
if (stdout_epollfd != -1) |
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{ |
{ |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
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stdout_flags = 0; |
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if (close(stdout_epollfd) < 0) |
if (close(stdout_epollfd) < 0) |
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{ |
{ |
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} |
} |
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stdout_epollfd = -1; |
stdout_epollfd = -1; |
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} |
} |
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#else |
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if (stdin_flags != 0) |
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{ |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
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stdin_flags = 0; |
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} |
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if (stdout_flags != 0) |
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{ |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
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stdout_flags = 0; |
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} |
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#endif |
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} |
} |
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int prints(const char *format, ...) |
int prints(const char *format, ...) |
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{ |
{ |
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char buf[BUFSIZ]; |
char buf[OUTPUT_BUF_SIZE]; |
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va_list args; |
va_list args; |
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int ret; |
int ret; |
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if (ret > 0) |
if (ret > 0) |
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{ |
{ |
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if (stdout_buf_len + ret > BUFSIZ) |
if (stdout_buf_len + ret > OUTPUT_BUF_SIZE) |
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{ |
{ |
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iflush(); |
iflush(); |
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} |
} |
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if (stdout_buf_len + ret <= BUFSIZ) |
if (stdout_buf_len + ret <= OUTPUT_BUF_SIZE) |
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{ |
{ |
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memcpy(stdout_buf + stdout_buf_len, buf, (size_t)ret); |
memcpy(stdout_buf + stdout_buf_len, buf, (size_t)ret); |
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stdout_buf_len += ret; |
stdout_buf_len += ret; |
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else |
else |
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{ |
{ |
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errno = EAGAIN; |
errno = EAGAIN; |
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ret = (BUFSIZ - stdout_buf_len - ret); |
ret = (OUTPUT_BUF_SIZE - stdout_buf_len - ret); |
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log_error("Output buffer is full, additional %d is required\n", ret); |
log_error("Output buffer is full, additional %d is required\n", ret); |
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} |
} |
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} |
} |
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{ |
{ |
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int ret; |
int ret; |
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if (stdout_buf_len + 1 > BUFSIZ) |
if (stdout_buf_len + 1 > OUTPUT_BUF_SIZE) |
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{ |
{ |
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iflush(); |
iflush(); |
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} |
} |
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if (stdout_buf_len + 1 <= BUFSIZ) |
if (stdout_buf_len + 1 <= OUTPUT_BUF_SIZE) |
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{ |
{ |
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stdout_buf[stdout_buf_len] = c; |
stdout_buf[stdout_buf_len] = c; |
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stdout_buf_len++; |
stdout_buf_len++; |
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int iflush(void) |
int iflush(void) |
| 241 |
{ |
{ |
| 242 |
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#ifdef HAVE_SYS_EPOLL_H |
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struct epoll_event events[MAX_EVENTS]; |
struct epoll_event events[MAX_EVENTS]; |
| 244 |
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#else |
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struct pollfd pfds[1]; |
| 246 |
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#endif |
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| 248 |
int nfds; |
int nfds; |
| 249 |
int retry; |
int retry; |
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int ret = 0; |
int ret = 0; |
| 255 |
{ |
{ |
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retry--; |
retry--; |
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#ifdef HAVE_SYS_EPOLL_H |
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nfds = epoll_wait(stdout_epollfd, events, MAX_EVENTS, 100); // 0.1 second |
nfds = epoll_wait(stdout_epollfd, events, MAX_EVENTS, 100); // 0.1 second |
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ret = nfds; |
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#else |
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pfds[0].fd = STDOUT_FILENO; |
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pfds[0].events = POLLOUT; |
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nfds = 1; |
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ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second |
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#endif |
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if (nfds < 0) |
if (ret < 0) |
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{ |
{ |
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if (errno != EINTR) |
if (errno != EINTR) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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log_error("epoll_wait() error (%d)\n", errno); |
log_error("epoll_wait() error (%d)\n", errno); |
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#else |
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log_error("poll() error (%d)\n", errno); |
| 276 |
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#endif |
| 277 |
break; |
break; |
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} |
} |
| 279 |
continue; |
continue; |
| 280 |
} |
} |
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else if (nfds == 0) // timeout |
else if (ret == 0) // timeout |
| 282 |
{ |
{ |
| 283 |
continue; |
continue; |
| 284 |
} |
} |
| 285 |
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| 286 |
for (int i = 0; i < nfds; i++) |
for (int i = 0; i < nfds; i++) |
| 287 |
{ |
{ |
| 288 |
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#ifdef HAVE_SYS_EPOLL_H |
| 289 |
if (events[i].data.fd == STDOUT_FILENO) |
if (events[i].data.fd == STDOUT_FILENO) |
| 290 |
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#else |
| 291 |
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if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT)) |
| 292 |
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#endif |
| 293 |
{ |
{ |
| 294 |
if (stdout_buf_offset < stdout_buf_len) |
if (stdout_buf_offset < stdout_buf_len) |
| 295 |
{ |
{ |
| 366 |
{ |
{ |
| 367 |
static int stdin_read_wait = 0; |
static int stdin_read_wait = 0; |
| 368 |
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|
| 369 |
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#ifdef HAVE_SYS_EPOLL_H |
| 370 |
struct epoll_event events[MAX_EVENTS]; |
struct epoll_event events[MAX_EVENTS]; |
| 371 |
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#else |
| 372 |
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struct pollfd pfds[1]; |
| 373 |
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#endif |
| 374 |
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|
| 375 |
int nfds; |
int nfds; |
| 376 |
int ret; |
int ret; |
| 377 |
int loop; |
int loop; |
| 399 |
|
|
| 400 |
if (!stdin_read_wait) |
if (!stdin_read_wait) |
| 401 |
{ |
{ |
| 402 |
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#ifdef HAVE_SYS_EPOLL_H |
| 403 |
nfds = epoll_wait(stdin_epollfd, events, MAX_EVENTS, timeout); |
nfds = epoll_wait(stdin_epollfd, events, MAX_EVENTS, timeout); |
| 404 |
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ret = nfds; |
| 405 |
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#else |
| 406 |
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pfds[0].fd = STDIN_FILENO; |
| 407 |
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pfds[0].events = POLLIN; |
| 408 |
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nfds = 1; |
| 409 |
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ret = poll(pfds, (nfds_t)nfds, timeout); |
| 410 |
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#endif |
| 411 |
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|
| 412 |
if (nfds < 0) |
if (ret < 0) |
| 413 |
{ |
{ |
| 414 |
if (errno != EINTR) |
if (errno != EINTR) |
| 415 |
{ |
{ |
| 416 |
|
#ifdef HAVE_SYS_EPOLL_H |
| 417 |
log_error("epoll_wait() error (%d)\n", errno); |
log_error("epoll_wait() error (%d)\n", errno); |
| 418 |
|
#else |
| 419 |
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log_error("poll() error (%d)\n", errno); |
| 420 |
|
#endif |
| 421 |
break; |
break; |
| 422 |
} |
} |
| 423 |
continue; |
continue; |
| 424 |
} |
} |
| 425 |
else if (nfds == 0) // timeout |
else if (ret == 0) // timeout |
| 426 |
{ |
{ |
| 427 |
out = KEY_TIMEOUT; |
out = KEY_TIMEOUT; |
| 428 |
break; |
break; |
| 430 |
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|
| 431 |
for (int i = 0; i < nfds; i++) |
for (int i = 0; i < nfds; i++) |
| 432 |
{ |
{ |
| 433 |
|
#ifdef HAVE_SYS_EPOLL_H |
| 434 |
if (events[i].data.fd == STDIN_FILENO) |
if (events[i].data.fd == STDIN_FILENO) |
| 435 |
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#else |
| 436 |
|
if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN)) |
| 437 |
|
#endif |
| 438 |
{ |
{ |
| 439 |
stdin_read_wait = 1; |
stdin_read_wait = 1; |
| 440 |
} |
} |