along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/inotify.h>
+#include <sys/socket.h>
+#include <sys/sysmacros.h>
+#include <sys/time.h>
+#include <linux/kd.h>
+#include <linux/tiocl.h>
+#include <linux/vt.h>
+#include <poll.h>
+#include <signal.h>
#include <sys/ioctl.h>
#include <sys/types.h>
-#include <sys/stat.h>
#include <termios.h>
#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <time.h>
-#include <assert.h>
-#include <poll.h>
-#include <linux/vt.h>
-#include <linux/tiocl.h>
-#include <linux/kd.h>
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "io-util.h"
+#include "log.h"
+#include "macro.h"
+#include "parse-util.h"
+#include "process-util.h"
+#include "socket-util.h"
+#include "stat-util.h"
+#include "string-util.h"
#include "terminal-util.h"
#include "time-util.h"
-#include "process-util.h"
#include "util.h"
-#include "fileio.h"
-#include "path-util.h"
static volatile unsigned cached_columns = 0;
static volatile unsigned cached_lines = 0;
errno = 0;
if (!fgets(line, sizeof(line), f))
- return errno ? -errno : -EIO;
+ return errno > 0 ? -errno : -EIO;
truncate_nl(line);
errno = 0;
if (!fgets(line, sizeof(line), stdin))
- return errno ? -errno : -EIO;
+ return errno > 0 ? -errno : -EIO;
if (!endswith(line, "\n"))
putchar('\n');
assert_se(sigaction(SIGHUP, &sa_old, NULL) == 0);
- /* Sometimes it makes sense to ignore TIOCSCTTY
+ /* Sometimes, it makes sense to ignore TIOCSCTTY
* returning EPERM, i.e. when very likely we already
* are have this controlling terminal. */
if (r < 0 && r == -EPERM && ignore_tiocstty_eperm)
return 0;
}
-int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) {
- static const char status_indent[] = " "; /* "[" STATUS "] " */
- _cleanup_free_ char *s = NULL;
- _cleanup_close_ int fd = -1;
- struct iovec iovec[6] = {};
- int n = 0;
- static bool prev_ephemeral;
-
- assert(format);
-
- /* This is independent of logging, as status messages are
- * optional and go exclusively to the console. */
-
- if (vasprintf(&s, format, ap) < 0)
- return log_oom();
-
- fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
- if (fd < 0)
- return fd;
-
- if (ellipse) {
- char *e;
- size_t emax, sl;
- int c;
-
- c = fd_columns(fd);
- if (c <= 0)
- c = 80;
-
- sl = status ? sizeof(status_indent)-1 : 0;
-
- emax = c - sl - 1;
- if (emax < 3)
- emax = 3;
-
- e = ellipsize(s, emax, 50);
- if (e) {
- free(s);
- s = e;
- }
- }
-
- if (prev_ephemeral)
- IOVEC_SET_STRING(iovec[n++], "\r" ANSI_ERASE_TO_END_OF_LINE);
- prev_ephemeral = ephemeral;
-
- if (status) {
- if (!isempty(status)) {
- IOVEC_SET_STRING(iovec[n++], "[");
- IOVEC_SET_STRING(iovec[n++], status);
- IOVEC_SET_STRING(iovec[n++], "] ");
- } else
- IOVEC_SET_STRING(iovec[n++], status_indent);
- }
-
- IOVEC_SET_STRING(iovec[n++], s);
- if (!ephemeral)
- IOVEC_SET_STRING(iovec[n++], "\n");
-
- if (writev(fd, iovec, n) < 0)
- return -errno;
-
- return 0;
-}
-
-int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) {
- va_list ap;
- int r;
-
- assert(format);
-
- va_start(ap, format);
- r = status_vprintf(status, ellipse, ephemeral, format, ap);
- va_end(ap);
-
- return r;
-}
-
bool tty_is_vc(const char *tty) {
assert(tty);
}
const char *default_term_for_tty(const char *tty) {
- assert(tty);
-
- return tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt220";
+ return tty && tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt220";
}
int fd_columns(int fd) {
return receive_one_fd(pair[0], 0);
}
+
+bool colors_enabled(void) {
+ static int enabled = -1;
+
+ if (_unlikely_(enabled < 0)) {
+ const char *colors;
+
+ colors = getenv("SYSTEMD_COLORS");
+ if (colors)
+ enabled = parse_boolean(colors) != 0;
+ else if (streq_ptr(getenv("TERM"), "dumb"))
+ enabled = false;
+ else
+ enabled = on_tty();
+ }
+
+ return enabled;
+}