/*
- * Copyright (c) 1980 Regents of the University of California.
+ * Copyright (C) 1980 Regents of the University of California.
+ * Copyright (C) 2013-2019 Karel Zak <kzak@redhat.com>
+ *
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-
-/*
- * 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
- * - added Native Language Support
- *
- * 2000-07-30 Per Andreas Buer <per@linpro.no> - added "q"-option
- *
- * 2014-05-30 Csaba Kos <csaba.kos@gmail.com>
- * - fixed a rare deadlock after child termination
- */
-
#include <stdio.h>
#include <stdlib.h>
#include <paths.h>
#include "ttyutils.h"
#include "all-io.h"
#include "monotonic.h"
-
+#include "timeutils.h"
+#include "strutils.h"
+#include "xalloc.h"
+#include "optutils.h"
+#include "signames.h"
+#include "pty-session.h"
#include "debug.h"
-UL_DEBUG_DEFINE_MASK(script);
+static UL_DEBUG_DEFINE_MASK(script);
UL_DEBUG_DEFINE_MASKNAMES(script) = UL_DEBUG_EMPTY_MASKNAMES;
#define SCRIPT_DEBUG_INIT (1 << 1)
-#define SCRIPT_DEBUG_POLL (1 << 2)
-#define SCRIPT_DEBUG_SIGNAL (1 << 3)
-#define SCRIPT_DEBUG_IO (1 << 4)
+#define SCRIPT_DEBUG_PTY (1 << 2)
+#define SCRIPT_DEBUG_IO (1 << 3)
+#define SCRIPT_DEBUG_SIGNAL (1 << 4)
#define SCRIPT_DEBUG_MISC (1 << 5)
#define SCRIPT_DEBUG_ALL 0xFFFF
#define DBG(m, x) __UL_DBG(script, SCRIPT_DEBUG_, m, x)
#define ON_DBG(m, x) __UL_DBG_CALL(script, SCRIPT_DEBUG_, m, x)
-#if defined(HAVE_LIBUTIL) && defined(HAVE_PTY_H)
-# include <pty.h>
-#endif
-
#ifdef HAVE_LIBUTEMPTER
# include <utempter.h>
#endif
#define DEFAULT_TYPESCRIPT_FILENAME "typescript"
+/*
+ * Script is driven by stream (stdout/stdin) activity. It's possible to
+ * associate arbitrary number of log files with the stream. We have two basic
+ * types of log files: "timing file" (simple or multistream) and "data file"
+ * (raw).
+ *
+ * The same log file maybe be shared between both streams. For exmaple
+ * multi-stream timing file is possible to use for stdin as well as for stdout.
+ */
+enum {
+ SCRIPT_FMT_RAW = 1, /* raw slave/master data */
+ SCRIPT_FMT_TIMING_SIMPLE, /* (classic) in format "<delta> <offset>" */
+ SCRIPT_FMT_TIMING_MULTI, /* (advanced) multiple streams in format "<type> <delta> <offset|etc> */
+};
+
+struct script_log {
+ FILE *fp; /* file pointer (handler) */
+ int format; /* SCRIPT_FMT_* */
+ char *filename; /* on command line specified name */
+ struct timeval oldtime; /* previous entry log time (SCRIPT_FMT_TIMING_* only) */
+ struct timeval starttime;
+
+ unsigned int initialized : 1;
+};
+
+struct script_stream {
+ struct script_log **logs; /* logs where to write data from stream */
+ size_t nlogs; /* number of logs */
+ char ident; /* stream identifier */
+};
+
struct script_control {
- char *shell; /* shell to be executed */
- char *command; /* command to be executed */
- char *fname; /* output file path */
- FILE *typescriptfp; /* output file pointer */
- char *tname; /* timing file path */
- FILE *timingfp; /* timing file pointer */
- struct timeval oldtime; /* previous write or command start time */
- int master; /* pseudoterminal master file descriptor */
- int slave; /* pseudoterminal slave file descriptor */
- int poll_timeout; /* poll() timeout, used in end of execution */
+ uint64_t outsz; /* current output files size */
+ uint64_t maxsz; /* maximum output files size */
+
+ struct script_stream out; /* output */
+ struct script_stream in; /* input */
+
+ struct script_log *siglog; /* log for signal entries */
+ struct script_log *infolog; /* log for info entries */
+
+ const char *ttyname;
+ const char *ttytype;
+ int ttycols;
+ int ttylines;
+
+ struct ul_pty *pty; /* pseudo-terminal */
pid_t child; /* child pid */
int childstatus; /* child process exit value */
- struct termios attrs; /* slave terminal runtime attributes */
- struct winsize win; /* terminal window size */
-#if !HAVE_LIBUTIL || !HAVE_PTY_H
- char line *; /* terminal line */
-#endif
+
unsigned int
append:1, /* append output */
rc_wanted:1, /* return child exit value */
flush:1, /* flush after each write */
quiet:1, /* suppress most output */
- timing:1, /* include timing file */
force:1, /* write output to links */
- isterm:1, /* is child process running as terminal */
- die:1; /* terminate program */
-
- sigset_t sigset; /* catch SIGCHLD and SIGWINCH with signalfd() */
- sigset_t sigorg; /* original signal mask */
- int sigfd; /* file descriptor for signalfd() */
+ isterm:1; /* is child process running as terminal */
};
+static ssize_t log_info(struct script_control *ctl, const char *name, const char *msgfmt, ...);
+
static void script_init_debug(void)
{
- __UL_INIT_DEBUG(script, SCRIPT_DEBUG_, 0, SCRIPT_DEBUG);
+ __UL_INIT_DEBUG_FROM_ENV(script, SCRIPT_DEBUG_, 0, SCRIPT_DEBUG);
+}
+
+static void init_terminal_info(struct script_control *ctl)
+{
+ if (ctl->ttyname || !ctl->isterm)
+ return; /* already initialized */
+
+ get_terminal_dimension(&ctl->ttycols, &ctl->ttylines);
+ get_terminal_name(&ctl->ttyname, NULL, NULL);
+ get_terminal_type(&ctl->ttytype);
}
/*
# define script_time(x) time(x)
#endif
-static void __attribute__((__noreturn__)) usage(FILE *out)
+static void __attribute__((__noreturn__)) usage(void)
{
+ FILE *out = stdout;
fputs(USAGE_HEADER, out);
fprintf(out, _(" %s [options] [file]\n"), program_invocation_short_name);
fputs(_("Make a typescript of a terminal session.\n"), out);
fputs(USAGE_OPTIONS, out);
- fputs(_(" -a, --append append the output\n"
- " -c, --command <command> run command rather than interactive shell\n"
- " -e, --return return exit code of the child process\n"
- " -f, --flush run flush after each write\n"
- " --force use output file even when it is a link\n"
- " -q, --quiet be quiet\n"
- " -t, --timing[=<file>] output timing data to stderr (or to FILE)\n"
- " -V, --version output version information and exit\n"
- " -h, --help display this help and exit\n\n"), out);
-
- fprintf(out, USAGE_MAN_TAIL("script(1)"));
- exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+ fputs(_(" -I, --log-in <file> log stdin to file\n"), out);
+ fputs(_(" -O, --log-out <file> log stdout to file (default)\n"), out);
+ fputs(_(" -B, --log-io <file> log stdin and stdout to file\n"), out);
+ fputs(USAGE_SEPARATOR, out);
+
+ fputs(_(" -T, --log-timing <file> log timing information to file\n"), out);
+ fputs(_(" -t[<file>], --timing[=<file>] deprecated alias to -T (default file is stderr)\n"), out);
+ fputs(_(" -m, --logging-format <name> force to 'classic' or 'advanced' format\n"), out);
+ fputs(USAGE_SEPARATOR, out);
+
+ fputs(_(" -a, --append append to the log file\n"), out);
+ fputs(_(" -c, --command <command> run command rather than interactive shell\n"), out);
+ fputs(_(" -e, --return return exit code of the child process\n"), out);
+ fputs(_(" -f, --flush run flush after each write\n"), out);
+ fputs(_(" --force use output file even when it is a link\n"), out);
+ fputs(_(" -o, --output-limit <size> terminate if output files exceed size\n"), out);
+ fputs(_(" -q, --quiet be quiet\n"), out);
+
+ fputs(USAGE_SEPARATOR, out);
+ printf(USAGE_HELP_OPTIONS(31));
+ printf(USAGE_MAN_TAIL("script(1)"));
+
+ exit(EXIT_SUCCESS);
}
-static void die_if_link(const struct script_control *ctl)
+static struct script_log *get_log_by_name(struct script_stream *stream,
+ const char *name)
{
- struct stat s;
+ size_t i;
- if (ctl->force)
- return;
- if (lstat(ctl->fname, &s) == 0 && (S_ISLNK(s.st_mode) || s.st_nlink > 1))
- errx(EXIT_FAILURE,
- _("output file `%s' is a link\n"
- "Use --force if you really want to use it.\n"
- "Program not started."), ctl->fname);
+ for (i = 0; i < stream->nlogs; i++) {
+ struct script_log *log = stream->logs[i];
+ if (strcmp(log->filename, name) == 0)
+ return log;
+ }
+ return NULL;
}
-static void __attribute__((__noreturn__)) done(struct script_control *ctl)
+static struct script_log *log_associate(struct script_control *ctl,
+ struct script_stream *stream,
+ const char *filename, int format)
{
- DBG(MISC, ul_debug("done!"));
+ struct script_log *log;
- if (ctl->isterm)
- tcsetattr(STDIN_FILENO, TCSADRAIN, &ctl->attrs);
- if (!ctl->quiet)
- printf(_("Script done, file is %s\n"), ctl->fname);
-#ifdef HAVE_LIBUTEMPTER
- if (ctl->master >= 0)
- utempter_remove_record(ctl->master);
-#endif
- kill(ctl->child, SIGTERM); /* make sure we don't create orphans */
+ DBG(MISC, ul_debug("associate %s with stream", filename));
- if (ctl->timingfp)
- fclose(ctl->timingfp);
- if (ctl->typescriptfp)
- fclose(ctl->typescriptfp);
+ assert(ctl);
+ assert(filename);
+ assert(stream);
- if (ctl->rc_wanted) {
- if (WIFSIGNALED(ctl->childstatus))
- exit(WTERMSIG(ctl->childstatus) + 0x80);
- else
- exit(WEXITSTATUS(ctl->childstatus));
+ log = get_log_by_name(stream, filename);
+ if (log)
+ return log; /* already defined */
+
+ log = get_log_by_name(stream == &ctl->out ? &ctl->in : &ctl->out, filename);
+ if (!log) {
+ /* create a new log */
+ log = xcalloc(1, sizeof(*log));
+ log->filename = xstrdup(filename);
+ log->format = format;
}
- exit(EXIT_SUCCESS);
-}
-static void __attribute__((__noreturn__)) fail(struct script_control *ctl)
-{
- DBG(MISC, ul_debug("fail!"));
- kill(0, SIGTERM);
- done(ctl);
+ /* add log to the stream */
+ stream->logs = xrealloc(stream->logs,
+ (stream->nlogs + 1) * sizeof(log));
+ stream->logs[stream->nlogs] = log;
+ stream->nlogs++;
+
+ /* remember where to write info about signals */
+ if (format == SCRIPT_FMT_TIMING_MULTI) {
+ if (!ctl->siglog)
+ ctl->siglog = log;
+ if (!ctl->infolog)
+ ctl->infolog = log;
+ }
+
+ return log;
}
-static void wait_for_child(struct script_control *ctl, int wait)
+static int log_close(struct script_control *ctl,
+ struct script_log *log,
+ const char *msg,
+ int status)
{
- int status;
- pid_t pid;
- int options = wait ? 0 : WNOHANG;
+ int rc = 0;
- DBG(MISC, ul_debug("waiting for child"));
+ if (!log || !log->initialized)
+ return 0;
- while ((pid = wait3(&status, options, NULL)) > 0)
- if (pid == ctl->child)
- ctl->childstatus = status;
-}
+ DBG(MISC, ul_debug("closing %s", log->filename));
-static void write_output(struct script_control *ctl, char *obuf,
- ssize_t bytes)
-{
- DBG(IO, ul_debug(" writing output"));
+ switch (log->format) {
+ case SCRIPT_FMT_RAW:
+ {
+ char buf[FORMAT_TIMESTAMP_MAX];
+ time_t tvec = script_time((time_t *)NULL);
- if (ctl->timing && ctl->timingfp) {
+ strtime_iso(&tvec, ISO_TIMESTAMP, buf, sizeof(buf));
+ if (msg)
+ fprintf(log->fp, _("\nScript done on %s [<%s>]\n"), buf, msg);
+ else
+ fprintf(log->fp, _("\nScript done on %s [COMMAND_EXIT_CODE=\"%d\"]\n"), buf, status);
+ break;
+ }
+ case SCRIPT_FMT_TIMING_MULTI:
+ {
struct timeval now, delta;
- DBG(IO, ul_debug(" writing timing info"));
-
gettime_monotonic(&now);
- timersub(&now, &ctl->oldtime, &delta);
- fprintf(ctl->timingfp, "%ld.%06ld %zd\n",
- (long)delta.tv_sec, (long)delta.tv_usec, bytes);
- if (ctl->flush)
- fflush(ctl->timingfp);
- ctl->oldtime = now;
- }
+ timersub(&now, &log->starttime, &delta);
- DBG(IO, ul_debug(" writing to script file"));
-
- if (fwrite_all(obuf, 1, bytes, ctl->typescriptfp)) {
- warn(_("cannot write script file"));
- fail(ctl);
+ log_info(ctl, "DURATION", "%ld.%06ld",
+ (long)delta.tv_sec, (long)delta.tv_usec);
+ log_info(ctl, "EXIT_CODE", "%d", status);
+ break;
+ }
+ case SCRIPT_FMT_TIMING_SIMPLE:
+ break;
}
- if (ctl->flush)
- fflush(ctl->typescriptfp);
-
- DBG(IO, ul_debug(" writing to output"));
- if (write_all(STDOUT_FILENO, obuf, bytes)) {
- DBG(IO, ul_debug(" writing output *failed*"));
- warn(_("write failed"));
- fail(ctl);
+ if (close_stream(log->fp) != 0) {
+ warn(_("write failed: %s"), log->filename);
+ rc = -errno;
}
- DBG(IO, ul_debug(" writing output *done*"));
-}
+ free(log->filename);
+ memset(log, 0, sizeof(*log));
-static int write_to_shell(struct script_control *ctl,
- char *buf, size_t bufsz)
-{
- return write_all(ctl->master, buf, bufsz);
+ return rc;
}
-/*
- * The script(1) is usually faster than shell, so it's a good idea to wait until
- * the previous message has been already read by shell from slave before we
- * write to master. This is necessary especially for EOF situation when we can
- * send EOF to master before shell is fully initialized, to workaround this
- * problem we wait until slave is empty. For example:
- *
- * echo "date" | script
- *
- * Unfortunately, the child (usually shell) can ignore stdin at all, so we
- * don't wait forever to avoid dead locks...
- *
- * Note that script is primarily designed for interactive sessions as it
- * maintains master+slave tty stuff within the session. Use pipe to write to
- * script(1) and assume non-interactive (tee-like) behavior is NOT well
- * supported.
- */
-static void write_eof_to_shell(struct script_control *ctl)
+static void log_free(struct script_control *ctl, struct script_log *log)
{
- unsigned int tries = 0;
- struct pollfd fds[] = {
- { .fd = ctl->slave, .events = POLLIN }
- };
- char c = DEF_EOF;
+ size_t i;
- DBG(IO, ul_debug(" waiting for empty slave"));
- while (poll(fds, 1, 10) == 1 && tries < 8) {
- DBG(IO, ul_debug(" slave is not empty"));
- xusleep(250000);
- tries++;
- }
- if (tries < 8)
- DBG(IO, ul_debug(" slave is empty now"));
+ if (!log)
+ return;
- DBG(IO, ul_debug(" sending EOF to master"));
- write_to_shell(ctl, &c, sizeof(char));
+ /* the same log is possible to reference from more places, remove all
+ * (TODO: maybe use include/list.h to make it more elegant)
+ */
+ if (ctl->siglog == log)
+ ctl->siglog = NULL;
+ else if (ctl->infolog == log)
+ ctl->infolog = NULL;
+
+ for (i = 0; i < ctl->out.nlogs; i++) {
+ if (ctl->out.logs[i] == log)
+ ctl->out.logs[i] = NULL;
+ }
+ for (i = 0; i < ctl->in.nlogs; i++) {
+ if (ctl->in.logs[i] == log)
+ ctl->in.logs[i] = NULL;
+ }
+ free(log);
}
-static void handle_io(struct script_control *ctl, int fd, int *eof)
+static int log_start(struct script_control *ctl,
+ struct script_log *log)
{
- char buf[BUFSIZ];
- ssize_t bytes;
+ if (log->initialized)
+ return 0;
- DBG(IO, ul_debug("%d FD active", fd));
- *eof = 0;
+ DBG(MISC, ul_debug("opening %s", log->filename));
- /* read from active FD */
- bytes = read(fd, buf, sizeof(buf));
- if (bytes < 0) {
- if (errno == EAGAIN || errno == EINTR)
- return;
- fail(ctl);
- }
+ assert(log->fp == NULL);
- if (bytes == 0) {
- *eof = 1;
- return;
+ /* open the log */
+ log->fp = fopen(log->filename,
+ ctl->append && log->format == SCRIPT_FMT_RAW ?
+ "a" UL_CLOEXECSTR :
+ "w" UL_CLOEXECSTR);
+ if (!log->fp) {
+ warn(_("cannot open %s"), log->filename);
+ return -errno;
}
- /* from stdin (user) to command */
- if (fd == STDIN_FILENO) {
- DBG(IO, ul_debug(" stdin --> master %zd bytes", bytes));
+ /* write header, etc. */
+ switch (log->format) {
+ case SCRIPT_FMT_RAW:
+ {
+ char buf[FORMAT_TIMESTAMP_MAX];
+ time_t tvec = script_time((time_t *)NULL);
- if (write_to_shell(ctl, buf, bytes)) {
- warn(_("write failed"));
- fail(ctl);
- }
- /* without sync write_output() will write both input &
- * shell output that looks like double echoing */
- fdatasync(ctl->master);
+ strtime_iso(&tvec, ISO_TIMESTAMP, buf, sizeof(buf));
+ fprintf(log->fp, _("Script started on %s ["), buf);
+
+ if (ctl->isterm) {
+ init_terminal_info(ctl);
+
+ if (ctl->ttytype)
+ fprintf(log->fp, "TERM=\"%s\" ", ctl->ttytype);
+ if (ctl->ttyname)
+ fprintf(log->fp, "TTY=\"%s\" ", ctl->ttyname);
- /* from command (master) to stdout */
- } else if (fd == ctl->master) {
- DBG(IO, ul_debug(" master --> stdout %zd bytes", bytes));
- write_output(ctl, buf, bytes);
+ fprintf(log->fp, "COLUMNS=\"%d\" LINES=\"%d\"", ctl->ttycols, ctl->ttylines);
+ } else
+ fprintf(log->fp, _("<not executed on terminal>"));
+
+ fputs("]\n", log->fp);
+ break;
+ }
+ case SCRIPT_FMT_TIMING_SIMPLE:
+ case SCRIPT_FMT_TIMING_MULTI:
+ gettime_monotonic(&log->oldtime);
+ gettime_monotonic(&log->starttime);
+ break;
}
+
+ log->initialized = 1;
+ return 0;
}
-static void handle_signal(struct script_control *ctl, int fd)
+static int logging_start(struct script_control *ctl)
{
- struct signalfd_siginfo info;
- ssize_t bytes;
-
- DBG(SIGNAL, ul_debug("signal FD %d active", fd));
+ size_t i;
- bytes = read(fd, &info, sizeof(info));
- if (bytes != sizeof(info)) {
- if (bytes < 0 && (errno == EAGAIN || errno == EINTR))
- return;
- fail(ctl);
+ /* start all output logs */
+ for (i = 0; i < ctl->out.nlogs; i++) {
+ int rc = log_start(ctl, ctl->out.logs[i]);
+ if (rc)
+ return rc;
}
- switch (info.ssi_signo) {
- case SIGCHLD:
- DBG(SIGNAL, ul_debug(" get signal SIGCHLD"));
- wait_for_child(ctl, 0);
- ctl->poll_timeout = 10;
- return;
- case SIGWINCH:
- DBG(SIGNAL, ul_debug(" get signal SIGWINCH"));
- if (ctl->isterm) {
- ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ctl->win);
- ioctl(ctl->slave, TIOCSWINSZ, (char *)&ctl->win);
- }
- break;
- case SIGTERM:
- /* fallthrough */
- case SIGINT:
- /* fallthrough */
- case SIGQUIT:
- DBG(SIGNAL, ul_debug(" get signal SIG{TERM,INT,QUIT}"));
- fprintf(stderr, _("\nSession terminated.\n"));
- /* Child termination is going to generate SIGCHILD (see above) */
- kill(ctl->child, SIGTERM);
- return;
- default:
- abort();
+ /* start all input logs */
+ for (i = 0; i < ctl->in.nlogs; i++) {
+ int rc = log_start(ctl, ctl->in.logs[i]);
+ if (rc)
+ return rc;
}
+ return 0;
}
-static void do_io(struct script_control *ctl)
+static ssize_t log_write(struct script_control *ctl,
+ struct script_stream *stream,
+ struct script_log *log,
+ char *obuf, size_t bytes)
{
- int ret, ignore_stdin = 0, eof = 0;
- time_t tvec = script_time((time_t *)NULL);
- char buf[128];
- enum {
- POLLFD_SIGNAL = 0,
- POLLFD_MASTER,
- POLLFD_STDIN /* optional; keep it last, see ignore_stdin */
+ int rc;
+ ssize_t ssz = 0;
+ struct timeval now, delta;
- };
- struct pollfd pfd[] = {
- [POLLFD_SIGNAL] = { .fd = ctl->sigfd, .events = POLLIN | POLLERR | POLLHUP },
- [POLLFD_MASTER] = { .fd = ctl->master, .events = POLLIN | POLLERR | POLLHUP },
- [POLLFD_STDIN] = { .fd = STDIN_FILENO, .events = POLLIN | POLLERR | POLLHUP }
- };
+ if (!log->fp)
+ return 0;
+ DBG(IO, ul_debug(" writing [file=%s]", log->filename));
- if ((ctl->typescriptfp =
- fopen(ctl->fname, ctl->append ? "a" UL_CLOEXECSTR : "w" UL_CLOEXECSTR)) == NULL) {
- warn(_("cannot open %s"), ctl->fname);
- fail(ctl);
- }
- if (ctl->timing) {
- if (!ctl->tname) {
- if (!(ctl->timingfp = fopen("/dev/stderr", "w" UL_CLOEXECSTR)))
- err(EXIT_FAILURE, _("cannot open %s"), "/dev/stderr");
- } else if (!(ctl->timingfp = fopen(ctl->tname, "w" UL_CLOEXECSTR)))
- err(EXIT_FAILURE, _("cannot open %s"), ctl->tname);
- }
+ switch (log->format) {
+ case SCRIPT_FMT_RAW:
+ DBG(IO, ul_debug(" log raw data"));
+ rc = fwrite_all(obuf, 1, bytes, log->fp);
+ if (rc) {
+ warn(_("cannot write %s"), log->filename);
+ return rc;
+ }
+ ssz = bytes;
+ break;
+ case SCRIPT_FMT_TIMING_SIMPLE:
+ DBG(IO, ul_debug(" log timing info"));
- strftime(buf, sizeof buf, "%c\n", localtime(&tvec));
- fprintf(ctl->typescriptfp, _("Script started on %s"), buf);
- gettime_monotonic(&ctl->oldtime);
+ gettime_monotonic(&now);
+ timersub(&now, &log->oldtime, &delta);
+ ssz = fprintf(log->fp, "%ld.%06ld %zd\n",
+ (long)delta.tv_sec, (long)delta.tv_usec, bytes);
+ if (ssz < 0)
+ return -errno;
- while (!ctl->die) {
- size_t i;
- int errsv;
+ log->oldtime = now;
+ break;
- DBG(POLL, ul_debug("calling poll()"));
+ case SCRIPT_FMT_TIMING_MULTI:
+ DBG(IO, ul_debug(" log multi-stream timing info"));
- /* wait for input or signal */
- ret = poll(pfd, ARRAY_SIZE(pfd) - ignore_stdin, ctl->poll_timeout);
- errsv = errno;
- DBG(POLL, ul_debug("poll() rc=%d", ret));
+ gettime_monotonic(&now);
+ timersub(&now, &log->oldtime, &delta);
+ ssz = fprintf(log->fp, "%c %ld.%06ld %zd\n",
+ stream->ident,
+ (long)delta.tv_sec, (long)delta.tv_usec, bytes);
+ if (ssz < 0)
+ return -errno;
+
+ log->oldtime = now;
+ break;
+ default:
+ break;
+ }
- if (ret < 0) {
- if (errsv == EAGAIN)
- continue;
- warn(_("poll failed"));
- fail(ctl);
- }
- if (ret == 0) {
- DBG(POLL, ul_debug("setting die=1"));
- ctl->die = 1;
- break;
- }
+ if (ctl->flush)
+ fflush(log->fp);
+ return ssz;
+}
- for (i = 0; i < ARRAY_SIZE(pfd) - ignore_stdin; i++) {
- if (pfd[i].revents == 0)
- continue;
-
- DBG(POLL, ul_debug(" active pfd[%s].fd=%d %s %s %s",
- i == POLLFD_STDIN ? "stdin" :
- i == POLLFD_MASTER ? "master" :
- i == POLLFD_SIGNAL ? "signal" : "???",
- pfd[i].fd,
- pfd[i].revents & POLLIN ? "POLLIN" : "",
- pfd[i].revents & POLLHUP ? "POLLHUP" : "",
- pfd[i].revents & POLLERR ? "POLLERR" : ""));
- switch (i) {
- case POLLFD_STDIN:
- case POLLFD_MASTER:
- /* data */
- if (pfd[i].revents & POLLIN)
- handle_io(ctl, pfd[i].fd, &eof);
- /* EOF maybe detected by two ways:
- * A) poll() return POLLHUP event after close()
- * B) read() returns 0 (no data) */
- if ((pfd[i].revents & POLLHUP) || eof) {
- DBG(POLL, ul_debug(" ignore FD"));
- pfd[i].fd = -1;
- /* according to man poll() set FD to -1 can't be used to ignore
- * STDIN, so let's remove the FD from pool at all */
- if (i == POLLFD_STDIN) {
- ignore_stdin = 1;
- write_eof_to_shell(ctl);
- DBG(POLL, ul_debug(" ignore STDIN"));
- }
- }
- continue;
- case POLLFD_SIGNAL:
- handle_signal(ctl, pfd[i].fd);
- break;
- }
- }
- }
+static ssize_t log_stream_activity(
+ struct script_control *ctl,
+ struct script_stream *stream,
+ char *buf, size_t bytes)
+{
+ size_t i;
+ ssize_t outsz = 0;
- DBG(POLL, ul_debug("poll() done"));
+ for (i = 0; i < stream->nlogs; i++) {
+ ssize_t ssz = log_write(ctl, stream, stream->logs[i], buf, bytes);
- if (!ctl->die)
- wait_for_child(ctl, 1);
- if (!ctl->quiet && ctl->typescriptfp) {
- tvec = script_time((time_t *)NULL);
- strftime(buf, sizeof buf, "%c\n", localtime(&tvec));
- fprintf(ctl->typescriptfp, _("\nScript done on %s"), buf);
+ if (ssz < 0)
+ return ssz;
+ outsz += ssz;
}
- done(ctl);
+
+ return outsz;
}
-static void getslave(struct script_control *ctl)
+static ssize_t log_signal(struct script_control *ctl, int signum, char *msgfmt, ...)
{
-#ifndef HAVE_LIBUTIL
- ctl->line[strlen("/dev/")] = 't';
- ctl->slave = open(ctl->line, O_RDWR | O_CLOEXEC);
- if (ctl->slave < 0) {
- warn(_("cannot open %s"), ctl->line);
- fail(ctl);
+ struct script_log *log;
+ struct timeval now, delta;
+ char msg[BUFSIZ] = {0};
+ va_list ap;
+ ssize_t sz;
+
+ assert(ctl);
+
+ log = ctl->siglog;
+ if (!log)
+ return 0;
+
+ assert(log->format == SCRIPT_FMT_TIMING_MULTI);
+ DBG(IO, ul_debug(" writing signal to multi-stream timing"));
+
+ gettime_monotonic(&now);
+ timersub(&now, &log->oldtime, &delta);
+
+ if (msgfmt) {
+ int rc;
+ va_start(ap, msgfmt);
+ rc = vsnprintf(msg, sizeof(msg), msgfmt, ap);
+ va_end(ap);
+ if (rc < 0)
+ *msg = '\0';;
}
- if (ctl->isterm) {
- tcsetattr(ctl->slave, TCSANOW, &ctl->attrs);
- ioctl(ctl->slave, TIOCSWINSZ, (char *)&ctl->win);
- }
-#endif
- setsid();
- ioctl(ctl->slave, TIOCSCTTY, 0);
+
+ if (*msg)
+ sz = fprintf(log->fp, "S %ld.%06ld SIG%s %s\n",
+ (long)delta.tv_sec, (long)delta.tv_usec,
+ signum_to_signame(signum), msg);
+ else
+ sz = fprintf(log->fp, "S %ld.%06ld SIG%s\n",
+ (long)delta.tv_sec, (long)delta.tv_usec,
+ signum_to_signame(signum));
+
+ log->oldtime = now;
+ return sz;
}
-/* don't use DBG() stuff here otherwise it will be in the typescript file */
-static void __attribute__((__noreturn__)) do_shell(struct script_control *ctl)
+static ssize_t log_info(struct script_control *ctl, const char *name, const char *msgfmt, ...)
{
- char *shname;
+ struct script_log *log;
+ char msg[BUFSIZ] = {0};
+ va_list ap;
+ ssize_t sz;
+
+ assert(ctl);
+
+ log = ctl->infolog;
+ if (!log)
+ return 0;
+
+ assert(log->format == SCRIPT_FMT_TIMING_MULTI);
+ DBG(IO, ul_debug(" writing info to multi-stream log"));
+
+ if (msgfmt) {
+ int rc;
+ va_start(ap, msgfmt);
+ rc = vsnprintf(msg, sizeof(msg), msgfmt, ap);
+ va_end(ap);
+ if (rc < 0)
+ *msg = '\0';;
+ }
- getslave(ctl);
+ if (*msg)
+ sz = fprintf(log->fp, "H %f %s %s\n", 0.0, name, msg);
+ else
+ sz = fprintf(log->fp, "H %f %s\n", 0.0, name);
- /* close things irrelevant for this process */
- close(ctl->master);
- close(ctl->sigfd);
+ return sz;
+}
- dup2(ctl->slave, STDIN_FILENO);
- dup2(ctl->slave, STDOUT_FILENO);
- dup2(ctl->slave, STDERR_FILENO);
- close(ctl->slave);
- ctl->master = -1;
+static void logging_done(struct script_control *ctl, const char *msg)
+{
+ int status;
+ size_t i;
- shname = strrchr(ctl->shell, '/');
- if (shname)
- shname++;
- else
- shname = ctl->shell;
+ DBG(MISC, ul_debug("stop logging"));
- sigprocmask(SIG_SETMASK, &ctl->sigorg, NULL);
+ if (WIFSIGNALED(ctl->childstatus))
+ status = WTERMSIG(ctl->childstatus) + 0x80;
+ else
+ status = WEXITSTATUS(ctl->childstatus);
- /*
- * When invoked from within /etc/csh.login, script spawns a csh shell
- * that spawns programs that cannot be killed with a SIGTERM. This is
- * because csh has a documented behavior wherein it disables all
- * signals when processing the /etc/csh.* files.
- *
- * Let's restore the default behavior.
- */
- signal(SIGTERM, SIG_DFL);
+ DBG(MISC, ul_debug(" status=%d", status));
- if (access(ctl->shell, X_OK) == 0) {
- if (ctl->command)
- execl(ctl->shell, shname, "-c", ctl->command, NULL);
- else
- execl(ctl->shell, shname, "-i", NULL);
- } else {
- if (ctl->command)
- execlp(shname, "-c", ctl->command, NULL);
- else
- execlp(shname, "-i", NULL);
+ /* close all output logs */
+ for (i = 0; i < ctl->out.nlogs; i++) {
+ struct script_log *log = ctl->out.logs[i];
+ log_close(ctl, log, msg, status);
+ log_free(ctl, log);
+ }
+ free(ctl->out.logs);
+ ctl->out.logs = NULL;
+ ctl->out.nlogs = 0;
+
+ /* close all input logs */
+ for (i = 0; i < ctl->in.nlogs; i++) {
+ struct script_log *log = ctl->in.logs[i];
+ log_close(ctl, log, msg, status);
+ log_free(ctl, log);
}
- warn(_("failed to execute %s"), ctl->shell);
- fail(ctl);
+ free(ctl->in.logs);
+ ctl->in.logs = NULL;
+ ctl->in.nlogs = 0;
}
-static void fixtty(struct script_control *ctl)
+static void callback_child_die(
+ void *data,
+ pid_t child __attribute__((__unused__)),
+ int status)
{
- struct termios rtt;
+ struct script_control *ctl = (struct script_control *) data;
- if (!ctl->isterm)
- return;
+ ctl->child = (pid_t) -1;
+ ctl->childstatus = status;
+}
- rtt = ctl->attrs;
- cfmakeraw(&rtt);
- rtt.c_lflag &= ~ECHO;
- tcsetattr(STDIN_FILENO, TCSANOW, &rtt);
+static void callback_child_sigstop(
+ void *data __attribute__((__unused__)),
+ pid_t child)
+{
+ DBG(SIGNAL, ul_debug(" child stop by SIGSTOP -- stop parent too"));
+ kill(getpid(), SIGSTOP);
+ DBG(SIGNAL, ul_debug(" resume"));
+ kill(child, SIGCONT);
}
-static void getmaster(struct script_control *ctl)
+static int callback_log_stream_activity(void *data, int fd, char *buf, size_t bufsz)
{
-#if defined(HAVE_LIBUTIL) && defined(HAVE_PTY_H)
- int rc;
+ struct script_control *ctl = (struct script_control *) data;
+ ssize_t ssz = 0;
+
+ DBG(IO, ul_debug("stream activity callback"));
+
+ /* from stdin (user) to command */
+ if (fd == STDIN_FILENO)
+ ssz = log_stream_activity(ctl, &ctl->in, buf, (size_t) bufsz);
+
+ /* from command (master) to stdout and log */
+ else if (fd == ul_pty_get_childfd(ctl->pty))
+ ssz = log_stream_activity(ctl, &ctl->out, buf, (size_t) bufsz);
+
+ if (ssz < 0)
+ return (int) ssz;
- ctl->isterm = isatty(STDIN_FILENO);
+ DBG(IO, ul_debug(" append %ld bytes [summary=%zu, max=%zu]", ssz,
+ ctl->outsz, ctl->maxsz));
- if (ctl->isterm) {
- if (tcgetattr(STDIN_FILENO, &ctl->attrs) != 0)
- err(EXIT_FAILURE, _("failed to get terminal attributes"));
- ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ctl->win);
- rc = openpty(&ctl->master, &ctl->slave, NULL, &ctl->attrs, &ctl->win);
- } else
- rc = openpty(&ctl->master, &ctl->slave, NULL, NULL, NULL);
+ ctl->outsz += ssz;
- if (rc < 0) {
- warn(_("openpty failed"));
- fail(ctl);
+
+ /* check output limit */
+ if (ctl->maxsz != 0 && ctl->outsz >= ctl->maxsz) {
+ if (!ctl->quiet)
+ printf(_("Script terminated, max output files size %"PRIu64" exceeded.\n"), ctl->maxsz);
+ DBG(IO, ul_debug("output size %"PRIu64", exceeded limit %"PRIu64, ctl->outsz, ctl->maxsz));
+ logging_done(ctl, _("max output size exceeded"));
+ return 1;
}
-#else
- char *pty, *bank, *cp;
+ return 0;
+}
- ctl->isterm = isatty(STDIN_FILENO);
+static int callback_log_signal(void *data, struct signalfd_siginfo *info, void *sigdata)
+{
+ struct script_control *ctl = (struct script_control *) data;
+ ssize_t ssz = 0;
- pty = &ctl->line[strlen("/dev/ptyp")];
- for (bank = "pqrs"; *bank; bank++) {
- ctl->line[strlen("/dev/pty")] = *bank;
- *pty = '0';
- if (access(ctl->line, F_OK) != 0)
- break;
- for (cp = "0123456789abcdef"; *cp; cp++) {
- *pty = *cp;
- ctl->master = open(ctl->line, O_RDWR | O_CLOEXEC);
- if (ctl->master >= 0) {
- char *tp = &ctl->line[strlen("/dev/")];
- int ok;
-
- /* verify slave side is usable */
- *tp = 't';
- ok = access(ctl->line, R_OK | W_OK) == 0;
- *tp = 'p';
- if (ok) {
- if (ctl->isterm) {
- tcgetattr(STDIN_FILENO, &ctl->attrs);
- ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ctl->win);
- }
- return;
- }
- close(ctl->master);
- ctl->master = -1;
- }
- }
+ switch (info->ssi_signo) {
+ case SIGWINCH:
+ {
+ struct winsize *win = (struct winsize *) sigdata;
+ ssz = log_signal(ctl, info->ssi_signo, "ROWS=%d COLS=%d",
+ win->ws_row, win->ws_col);
+ break;
+ }
+ case SIGTERM:
+ /* fallthrough */
+ case SIGINT:
+ /* fallthrough */
+ case SIGQUIT:
+ ssz = log_signal(ctl, info->ssi_signo, NULL);
+ break;
+ default:
+ /* no log */
+ break;
}
- ctl->master = -1;
- warn(_("out of pty's"));
- fail(ctl);
-#endif /* not HAVE_LIBUTIL */
- DBG(IO, ul_debug("master fd: %d", ctl->master));
+ return ssz < 0 ? ssz : 0;
+}
+
+static void die_if_link(struct script_control *ctl, const char *filename)
+{
+ struct stat s;
+
+ if (ctl->force)
+ return;
+ if (lstat(filename, &s) == 0 && (S_ISLNK(s.st_mode) || s.st_nlink > 1))
+ errx(EXIT_FAILURE,
+ _("output file `%s' is a link\n"
+ "Use --force if you really want to use it.\n"
+ "Program not started."), filename);
}
int main(int argc, char **argv)
{
struct script_control ctl = {
-#if !HAVE_LIBUTIL || !HAVE_PTY_H
- .line = "/dev/ptyXX",
-#endif
- .master = -1,
- .poll_timeout = -1,
- 0
+ .out = { .ident = 'O' },
+ .in = { .ident = 'I' },
};
- int ch;
+ struct ul_pty_callbacks *cb;
+ int ch, format = 0, caught_signal = 0, rc = 0;
+ const char *outfile = NULL, *infile = NULL;
+ const char *timingfile = NULL, *shell = NULL, *command = NULL;
enum { FORCE_OPTION = CHAR_MAX + 1 };
{"return", no_argument, NULL, 'e'},
{"flush", no_argument, NULL, 'f'},
{"force", no_argument, NULL, FORCE_OPTION,},
+ {"log-in", required_argument, NULL, 'I'},
+ {"log-out", required_argument, NULL, 'O'},
+ {"log-io", required_argument, NULL, 'B'},
+ {"log-timing", required_argument, NULL, 'T'},
+ {"logging-format", required_argument, NULL, 'm'},
+ {"output-limit", required_argument, NULL, 'o'},
{"quiet", no_argument, NULL, 'q'},
{"timing", optional_argument, NULL, 't'},
{"version", no_argument, NULL, 'V'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
-
+ static const ul_excl_t excl[] = { /* rows and cols in ASCII order */
+ { 'T', 't' },
+ { 0 }
+ };
+ int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT;
setlocale(LC_ALL, "");
/*
* script -t prints time delays as floating point numbers. The example
setlocale(LC_NUMERIC, "C");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
- atexit(close_stdout);
+ close_stdout_atexit();
script_init_debug();
+ ON_DBG(PTY, ul_pty_init_debug(0xFFFF));
+
+ while ((ch = getopt_long(argc, argv, "aB:c:efI:O:o:qm:T:t::Vh", longopts, NULL)) != -1) {
+
+ err_exclusive_options(ch, longopts, excl, excl_st);
- while ((ch = getopt_long(argc, argv, "ac:efqt::Vh", longopts, NULL)) != -1)
switch (ch) {
case 'a':
ctl.append = 1;
break;
case 'c':
- ctl.command = optarg;
+ command = optarg;
break;
case 'e':
ctl.rc_wanted = 1;
case FORCE_OPTION:
ctl.force = 1;
break;
+ case 'B':
+ log_associate(&ctl, &ctl.in, optarg, SCRIPT_FMT_RAW);
+ log_associate(&ctl, &ctl.out, optarg, SCRIPT_FMT_RAW);
+ infile = outfile = optarg;
+ break;
+ case 'I':
+ log_associate(&ctl, &ctl.in, optarg, SCRIPT_FMT_RAW);
+ infile = optarg;
+ break;
+ case 'O':
+ log_associate(&ctl, &ctl.out, optarg, SCRIPT_FMT_RAW);
+ outfile = optarg;
+ break;
+ case 'o':
+ ctl.maxsz = strtosize_or_err(optarg, _("failed to parse output limit size"));
+ break;
case 'q':
ctl.quiet = 1;
break;
+ case 'm':
+ if (strcasecmp(optarg, "classic") == 0)
+ format = SCRIPT_FMT_TIMING_SIMPLE;
+ else if (strcasecmp(optarg, "advanced") == 0)
+ format = SCRIPT_FMT_TIMING_MULTI;
+ else
+ errx(EXIT_FAILURE, _("unssuported logging format: '%s'"), optarg);
+ break;
case 't':
- if (optarg)
- ctl.tname = optarg;
- ctl.timing = 1;
+ if (optarg && *optarg == '=')
+ optarg++;
+ log_associate(&ctl, &ctl.out,
+ optarg ? optarg : "/dev/stderr",
+ SCRIPT_FMT_TIMING_SIMPLE);
+ /* used for message only */
+ timingfile = optarg ? optarg : "stderr";
break;
- case 'V':
- printf(UTIL_LINUX_VERSION);
- exit(EXIT_SUCCESS);
+ case 'T' :
+ timingfile = optarg;
break;
+ case 'V':
+ print_version(EXIT_SUCCESS);
case 'h':
- usage(stdout);
- break;
+ usage();
default:
- usage(stderr);
+ errtryhelp(EXIT_FAILURE);
}
+ }
argc -= optind;
argv += optind;
- if (argc > 0)
- ctl.fname = argv[0];
- else {
- ctl.fname = DEFAULT_TYPESCRIPT_FILENAME;
- die_if_link(&ctl);
+ /* default if no --log-* specified */
+ if (!outfile && !infile) {
+ if (argc > 0)
+ outfile = argv[0];
+ else {
+ die_if_link(&ctl, DEFAULT_TYPESCRIPT_FILENAME);
+ outfile = DEFAULT_TYPESCRIPT_FILENAME;
+ }
+
+ /* associate stdout with typescript file */
+ log_associate(&ctl, &ctl.out, outfile, SCRIPT_FMT_RAW);
}
- ctl.shell = getenv("SHELL");
- if (ctl.shell == NULL)
- ctl.shell = _PATH_BSHELL;
+ if (timingfile) {
+ /* the old SCRIPT_FMT_TIMING_SIMPLE should be used when
+ * recoding output only (just for backward compatibility),
+ * otherwise switch to new format. */
+ if (!format)
+ format = infile || (outfile && infile) ?
+ SCRIPT_FMT_TIMING_MULTI :
+ SCRIPT_FMT_TIMING_SIMPLE;
+
+ else if (format == SCRIPT_FMT_TIMING_SIMPLE && outfile && infile)
+ errx(EXIT_FAILURE, _("log multiple streams is mutually "
+ "exclusive with 'classic' format"));
+ if (outfile)
+ log_associate(&ctl, &ctl.out, timingfile, format);
+ if (infile)
+ log_associate(&ctl, &ctl.in, timingfile, format);
+ }
- getmaster(&ctl);
- if (!ctl.quiet)
- printf(_("Script started, file is %s\n"), ctl.fname);
- fixtty(&ctl);
+ shell = getenv("SHELL");
+ if (!shell)
+ shell = _PATH_BSHELL;
+
+ ctl.isterm = isatty(STDIN_FILENO);
+ ctl.pty = ul_new_pty(ctl.isterm);
+ if (!ctl.pty)
+ err(EXIT_FAILURE, "failed to allocate PTY handler");
+
+ ul_pty_set_callback_data(ctl.pty, (void *) &ctl);
+ cb = ul_pty_get_callbacks(ctl.pty);
+ cb->child_die = callback_child_die;
+ cb->child_sigstop = callback_child_sigstop;
+ cb->log_stream_activity = callback_log_stream_activity;
+ cb->log_signal = callback_log_signal;
+
+ if (!ctl.quiet) {
+ printf(_("Script started"));
+ if (outfile)
+ printf(_(", output log file is '%s'"), outfile);
+ if (infile)
+ printf(_(", input log file is '%s'"), infile);
+ if (timingfile)
+ printf(_(", timing file is '%s'"), timingfile);
+ printf(_(".\n"));
+ }
#ifdef HAVE_LIBUTEMPTER
- utempter_add_record(ctl.master, NULL);
+ utempter_add_record(ul_pty_get_childfd(ctl.pty), NULL);
#endif
- /* setup signal handler */
- sigemptyset(&ctl.sigset);
- sigaddset(&ctl.sigset, SIGCHLD);
- sigaddset(&ctl.sigset, SIGWINCH);
- sigaddset(&ctl.sigset, SIGTERM);
- sigaddset(&ctl.sigset, SIGINT);
- sigaddset(&ctl.sigset, SIGQUIT);
- /* block signals used for signalfd() to prevent the signals being
- * handled according to their default dispositions */
- sigprocmask(SIG_BLOCK, &ctl.sigset, &ctl.sigorg);
-
- if ((ctl.sigfd = signalfd(-1, &ctl.sigset, SFD_CLOEXEC)) < 0)
- err(EXIT_FAILURE, _("cannot set signal handler"));
-
- DBG(SIGNAL, ul_debug("signal fd=%d", ctl.sigfd));
+ if (ul_pty_setup(ctl.pty))
+ err(EXIT_FAILURE, _("failed to create pseudo-terminal"));
fflush(stdout);
- ctl.child = fork();
- switch (ctl.child) {
+ /*
+ * We have terminal, do not use err() from now, use "goto done"
+ */
+
+ switch ((int) (ctl.child = fork())) {
case -1: /* error */
- warn(_("fork failed"));
- fail(&ctl);
- break;
+ warn(_("cannot create child process"));
+ rc = -errno;
+ goto done;
+
case 0: /* child */
- do_shell(&ctl);
+ {
+ const char *shname;
+
+ ul_pty_init_slave(ctl.pty);
+
+ signal(SIGTERM, SIG_DFL); /* because /etc/csh.login */
+
+ shname = strrchr(shell, '/');
+ shname = shname ? shname + 1 : shell;
+
+ if (command)
+ execl(shell, shname, "-c", command, NULL);
+ else
+ execl(shell, shname, "-i", NULL);
+ err(EXIT_FAILURE, "failed to execute %s", shell);
break;
- default: /* parent */
- do_io(&ctl);
+ }
+ default:
break;
}
- /* should not happen, all used functions are non-return */
- return EXIT_FAILURE;
+ /* parent */
+ ul_pty_set_child(ctl.pty, ctl.child);
+
+ rc = logging_start(&ctl);
+ if (rc)
+ goto done;
+
+ /* add extra info to advanced timing file */
+ if (timingfile && format == SCRIPT_FMT_TIMING_MULTI) {
+ char buf[FORMAT_TIMESTAMP_MAX];
+ time_t tvec = script_time((time_t *)NULL);
+
+ strtime_iso(&tvec, ISO_TIMESTAMP, buf, sizeof(buf));
+ log_info(&ctl, "START_TIME", buf);
+
+ if (ctl.isterm) {
+ init_terminal_info(&ctl);
+ log_info(&ctl, "TERM", ctl.ttytype);
+ log_info(&ctl, "TTY", ctl.ttyname);
+ log_info(&ctl, "COLUMNS", "%d", ctl.ttycols);
+ log_info(&ctl, "LINES", "%d", ctl.ttylines);
+ }
+ log_info(&ctl, "SHELL", shell);
+ if (command)
+ log_info(&ctl, "COMMAND", command);
+ log_info(&ctl, "TIMING_LOG", timingfile);
+ if (outfile)
+ log_info(&ctl, "OUTPUT_LOG", outfile);
+ if (infile)
+ log_info(&ctl, "INPUT_LOG", infile);
+ }
+
+ /* this is the main loop */
+ rc = ul_pty_proxy_master(ctl.pty);
+
+ /* all done; cleanup and kill */
+ caught_signal = ul_pty_get_delivered_signal(ctl.pty);
+
+ if (!caught_signal && ctl.child != (pid_t)-1)
+ ul_pty_wait_for_child(ctl.pty); /* final wait */
+
+ if (caught_signal && ctl.child != (pid_t)-1) {
+ fprintf(stderr, "\nSession terminated, killing shell...");
+ kill(ctl.child, SIGTERM);
+ sleep(2);
+ kill(ctl.child, SIGKILL);
+ fprintf(stderr, " ...killed.\n");
+ }
+
+done:
+ ul_pty_cleanup(ctl.pty);
+ logging_done(&ctl, NULL);
+
+ if (!ctl.quiet)
+ printf(_("Script done.\n"));
+
+#ifdef HAVE_LIBUTEMPTER
+ if (ul_pty_get_childfd(ctl.pty) >= 0)
+ utempter_remove_record(ul_pty_get_childfd(ctl.pty));
+#endif
+ ul_free_pty(ctl.pty);
+
+ /* default exit code */
+ rc = rc ? EXIT_FAILURE : EXIT_SUCCESS;
+
+ /* exit code based on child status */
+ if (ctl.rc_wanted && rc == EXIT_SUCCESS) {
+ if (WIFSIGNALED(ctl.childstatus))
+ rc = WTERMSIG(ctl.childstatus) + 0x80;
+ else
+ rc = WEXITSTATUS(ctl.childstatus);
+ }
+
+ DBG(MISC, ul_debug("done [rc=%d]", rc));
+ return rc;
}
projects / thirdparty / util-linux.git / blobdiff