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/* source: xioclose.c */
/* Copyright Gerhard Rieger 2001-2008 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this is the source of the extended close function */
#include "xiosysincludes.h"
#include "xioopen.h"
#include "xiolockfile.h"
#include "xio-termios.h"
/* close the xio fd; must be valid and "simple" (not dual) */
int xioclose1(struct single *pipe) {
if (pipe->tag == XIO_TAG_INVALID) {
Notice("xioclose1(): invalid file descriptor");
errno = EINVAL;
return -1;
}
#if WITH_READLINE
if ((pipe->dtype & XIODATA_MASK) == XIODATA_READLINE) {
Write_history(pipe->para.readline.history_file);
/*xiotermios_setflag(pipe->fd, 3, ECHO|ICANON);*/ /* error when pty closed */
}
#endif /* WITH_READLINE */
#if WITH_OPENSSL
if ((pipe->dtype & XIODATA_MASK) == XIODATA_OPENSSL) {
if (pipe->para.openssl.ssl) {
/* e.g. on TCP connection refused, we do not yet have this set */
sycSSL_shutdown(pipe->para.openssl.ssl);
sycSSL_free(pipe->para.openssl.ssl);
pipe->para.openssl.ssl = NULL;
}
Close(pipe->fd); pipe->fd = -1;
if (pipe->para.openssl.ctx) {
sycSSL_CTX_free(pipe->para.openssl.ctx);
pipe->para.openssl.ctx = NULL;
}
} else
#endif /* WITH_OPENSSL */
#if WITH_TERMIOS
if (pipe->ttyvalid) {
if (Tcsetattr(pipe->fd, 0, &pipe->savetty) < 0) {
Warn2("cannot restore terminal settings on fd %d: %s",
pipe->fd, strerror(errno));
}
}
#endif /* WITH_TERMIOS */
if (pipe->fd >= 0) {
switch (pipe->howtoend) {
case END_KILL: case END_SHUTDOWN_KILL: case END_CLOSE_KILL:
if (pipe->para.exec.pid > 0) {
if (Kill(pipe->para.exec.pid, SIGTERM) < 0) {
Msg2(errno==ESRCH?E_INFO:E_WARN, "kill(%d, SIGTERM): %s",
pipe->para.exec.pid, strerror(errno));
}
}
default:
break;
}
switch (pipe->howtoend) {
case END_CLOSE: case END_CLOSE_KILL:
if (Close(pipe->fd) < 0) {
Info2("close(%d): %s", pipe->fd, strerror(errno)); } break;
#if WITH_SOCKET
case END_SHUTDOWN: case END_SHUTDOWN_KILL:
if (Shutdown(pipe->fd, 2) < 0) {
Info3("shutdown(%d, %d): %s", pipe->fd, 2, strerror(errno)); }
break;
#endif /* WITH_SOCKET */
case END_UNLINK: if (Unlink((const char *)pipe->name) < 0) {
Warn2("unlink(\"%s\"): %s", pipe->name, strerror(errno)); }
break;
case END_NONE: default: break;
}
}
/* unlock */
if (pipe->havelock) {
xiounlock(pipe->lock.lockfile);
pipe->havelock = false;
}
if (pipe->opt_unlink_close && pipe->unlink_close) {
if (Unlink(pipe->unlink_close) < 0) {
Info2("unlink(\"%s\"): %s", pipe->unlink_close, strerror(errno));
}
free(pipe->unlink_close);
}
pipe->tag = XIO_TAG_INVALID;
return 0; /*! */
}
/* close the xio fd */
int xioclose(xiofile_t *file) {
int result;
if (file->tag == XIO_TAG_INVALID) {
Error("xioclose(): invalid file descriptor");
errno = EINVAL;
return -1;
}
if (file->tag == XIO_TAG_DUAL) {
result = xioclose1(file->dual.stream[0]);
result |= xioclose1(file->dual.stream[1]);
file->tag = XIO_TAG_INVALID;
} else {
result = xioclose1(&file->stream);
}
return result;
}
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