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-rw-r--r--usr.bin/chat/chat.c1526
1 files changed, 1526 insertions, 0 deletions
diff --git a/usr.bin/chat/chat.c b/usr.bin/chat/chat.c
new file mode 100644
index 000000000000..64dc6cba0dcf
--- /dev/null
+++ b/usr.bin/chat/chat.c
@@ -0,0 +1,1526 @@
+/*
+ * Chat -- a program for automatic session establishment (i.e. dial
+ * the phone and log in).
+ *
+ * Standard termination codes:
+ * 0 - successful completion of the script
+ * 1 - invalid argument, expect string too large, etc.
+ * 2 - error on an I/O operation or fatal error condition.
+ * 3 - timeout waiting for a simple string.
+ * 4 - the first string declared as "ABORT"
+ * 5 - the second string declared as "ABORT"
+ * 6 - ... and so on for successive ABORT strings.
+ *
+ * This software is in the public domain.
+ *
+ * -----------------
+ * added -T and -U option and \T and \U substitution to pass a phone
+ * number into chat script. Two are needed for some ISDN TA applications.
+ * Keith Dart <kdart@cisco.com>
+ *
+ *
+ * Added SAY keyword to send output to stderr.
+ * This allows to turn ECHO OFF and to output specific, user selected,
+ * text to give progress messages. This best works when stderr
+ * exists (i.e.: pppd in nodetach mode).
+ *
+ * Added HANGUP directives to allow for us to be called
+ * back. When HANGUP is set to NO, chat will not hangup at HUP signal.
+ * We rely on timeouts in that case.
+ *
+ * Added CLR_ABORT to clear previously set ABORT string. This has been
+ * dictated by the HANGUP above as "NO CARRIER" (for example) must be
+ * an ABORT condition until we know the other host is going to close
+ * the connection for call back. As soon as we have completed the
+ * first stage of the call back sequence, "NO CARRIER" is a valid, non
+ * fatal string. As soon as we got called back (probably get "CONNECT"),
+ * we should re-arm the ABORT "NO CARRIER". Hence the CLR_ABORT command.
+ * Note that CLR_ABORT packs the abort_strings[] array so that we do not
+ * have unused entries not being reclaimed.
+ *
+ * In the same vein as above, added CLR_REPORT keyword.
+ *
+ * Allow for comments. Line starting with '#' are comments and are
+ * ignored. If a '#' is to be expected as the first character, the
+ * expect string must be quoted.
+ *
+ *
+ * Francis Demierre <Francis@SwissMail.Com>
+ * Thu May 15 17:15:40 MET DST 1997
+ *
+ *
+ * Added -r "report file" switch & REPORT keyword.
+ * Robert Geer <bgeer@xmission.com>
+ *
+ * Added -s "use stderr" and -S "don't use syslog" switches.
+ * June 18, 1997
+ * Karl O. Pinc <kop@meme.com>
+ *
+ *
+ * Added -e "echo" switch & ECHO keyword
+ * Dick Streefland <dicks@tasking.nl>
+ *
+ *
+ * Considerable updates and modifications by
+ * Al Longyear <longyear@pobox.com>
+ * Paul Mackerras <paulus@cs.anu.edu.au>
+ *
+ *
+ * The original author is:
+ *
+ * Karl Fox <karl@MorningStar.Com>
+ * Morning Star Technologies, Inc.
+ * 1760 Zollinger Road
+ * Columbus, OH 43221
+ * (614)451-1883
+ *
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <termios.h>
+#include <time.h>
+#include <unistd.h>
+
+#define STR_LEN 1024
+
+#ifndef SIGTYPE
+#define SIGTYPE void
+#endif
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+
+#define MAX_ABORTS 50
+#define MAX_REPORTS 50
+#define DEFAULT_CHAT_TIMEOUT 45
+
+static int echo;
+static int verbose;
+static int to_log;
+static int to_stderr;
+static int Verbose;
+static int quiet;
+static int exit_code;
+static FILE* report_fp;
+static char *report_file;
+static char *chat_file;
+static char *phone_num;
+static char *phone_num2;
+static int timeout = DEFAULT_CHAT_TIMEOUT;
+
+static char blank[] = "";
+
+static int have_tty_parameters;
+
+#define term_parms struct termios
+#define get_term_param(param) tcgetattr(0, param)
+#define set_term_param(param) tcsetattr(0, TCSANOW, param)
+static struct termios saved_tty_parameters;
+
+static char *abort_string[MAX_ABORTS], *fail_reason, fail_buffer[50];
+static int n_aborts, abort_next, timeout_next, echo_next;
+static int clear_abort_next;
+
+static char *report_string[MAX_REPORTS];
+static char report_buffer[50];
+static int n_reports, report_next, report_gathering;
+static int clear_report_next;
+
+static int say_next, hup_next;
+
+void *dup_mem(void *b, size_t c);
+void *copy_of(char *s);
+static void usage(void) __dead2;
+void chat_logf(const char *fmt, ...);
+void fatal(int code, const char *fmt, ...);
+SIGTYPE sigalrm(int signo);
+SIGTYPE sigint(int signo);
+SIGTYPE sigterm(int signo);
+SIGTYPE sighup(int signo);
+void init(void);
+void set_tty_parameters(void);
+void echo_stderr(int);
+void break_sequence(void);
+void terminate(int status);
+void do_file(char *chatfile);
+int get_string(char *string);
+int put_string(char *s);
+int write_char(int c);
+int put_char(int c);
+int get_char(void);
+void chat_send(char *s);
+char *character(int c);
+void chat_expect(char *s);
+char *clean(char *s, int sending);
+void pack_array(char **array, int end);
+char *expect_strtok(char *, const char *);
+int vfmtmsg(char *, int, const char *, va_list); /* vsprintf++ */
+
+void *
+dup_mem(void *b, size_t c)
+{
+ void *ans = malloc (c);
+ if (!ans)
+ fatal(2, "memory error!");
+
+ memcpy (ans, b, c);
+ return ans;
+}
+
+void *
+copy_of(char *s)
+{
+ return dup_mem (s, strlen (s) + 1);
+}
+
+/*
+ * chat [-esSvV] [-f chat-file] [-r report-file] [-t timeout]
+ * [-T phone-number] [-U phone-number2] [chat-script]
+ * where chat-script has the form:
+ * [...[[expect[-send[-expect...]] send expect[-send[-expect]] ...]]]
+ *
+ * Perform a UUCP-dialer-like chat script on stdin and stdout.
+ */
+int
+main(int argc, char *argv[])
+{
+ int option;
+
+ tzset();
+
+ while ((option = getopt(argc, argv, "ef:r:sSt:T:U:vV")) != -1) {
+ switch (option) {
+ case 'e':
+ ++echo;
+ break;
+
+ case 'f':
+ if (chat_file != NULL)
+ free(chat_file);
+ chat_file = copy_of(optarg);
+ break;
+
+ case 'r':
+ if (report_fp != NULL)
+ fclose(report_fp);
+ if (report_file != NULL)
+ free(report_file);
+ report_file = copy_of(optarg);
+ report_fp = fopen(report_file, "a");
+ if (report_fp != NULL) {
+ if (verbose)
+ fprintf(report_fp, "Opening \"%s\"...\n", report_file);
+ } else
+ fatal(2, "cannot open \"%s\" for appending", report_file);
+ break;
+
+ case 's':
+ ++to_stderr;
+ break;
+
+ case 'S':
+ to_log = 0;
+ break;
+
+ case 't':
+ timeout = atoi(optarg);
+ break;
+
+ case 'T':
+ if (phone_num != NULL)
+ free(phone_num);
+ phone_num = copy_of(optarg);
+ break;
+
+ case 'U':
+ if (phone_num2 != NULL)
+ free(phone_num2);
+ phone_num2 = copy_of(optarg);
+ break;
+
+ case 'v':
+ ++verbose;
+ break;
+
+ case 'V':
+ ++Verbose;
+ break;
+
+ default:
+ usage();
+ break;
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+/*
+ * Default the report file to the stderr location
+ */
+ if (report_fp == NULL)
+ report_fp = stderr;
+
+ if (to_log) {
+ openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2);
+
+ if (verbose)
+ setlogmask(LOG_UPTO(LOG_INFO));
+ else
+ setlogmask(LOG_UPTO(LOG_WARNING));
+ }
+
+ if (chat_file != NULL) {
+ if (*argv != NULL)
+ usage();
+ else {
+ init();
+ do_file(chat_file);
+ }
+ } else {
+ init();
+ while (*argv != NULL && argc > 0) {
+ chat_expect(*argv);
+ argv++;
+ argc--;
+
+ if (*argv != NULL && argc > 0) {
+ chat_send(*argv);
+ argv++;
+ argc--;
+ }
+ }
+ }
+
+ terminate(0);
+ return 0;
+}
+
+/*
+ * Process a chat script when read from a file.
+ */
+
+void
+do_file(char *chatfile)
+{
+ int linect, sendflg;
+ char *sp, *arg, quote;
+ char buf [STR_LEN];
+ FILE *cfp;
+
+ cfp = fopen (chatfile, "r");
+ if (cfp == NULL)
+ fatal(1, "%s -- open failed: %m", chatfile);
+
+ linect = 0;
+ sendflg = 0;
+
+ while (fgets(buf, STR_LEN, cfp) != NULL) {
+ sp = strchr (buf, '\n');
+ if (sp)
+ *sp = '\0';
+
+ linect++;
+ sp = buf;
+
+ /* lines starting with '#' are comments. If a real '#'
+ is to be expected, it should be quoted .... */
+ if ( *sp == '#' )
+ continue;
+
+ while (*sp != '\0') {
+ if (*sp == ' ' || *sp == '\t') {
+ ++sp;
+ continue;
+ }
+
+ if (*sp == '"' || *sp == '\'') {
+ quote = *sp++;
+ arg = sp;
+ while (*sp != quote) {
+ if (*sp == '\0')
+ fatal(1, "unterminated quote (line %d)", linect);
+
+ if (*sp++ == '\\') {
+ if (*sp != '\0')
+ ++sp;
+ }
+ }
+ }
+ else {
+ arg = sp;
+ while (*sp != '\0' && *sp != ' ' && *sp != '\t')
+ ++sp;
+ }
+
+ if (*sp != '\0')
+ *sp++ = '\0';
+
+ if (sendflg)
+ chat_send (arg);
+ else
+ chat_expect (arg);
+ sendflg = !sendflg;
+ }
+ }
+ fclose (cfp);
+}
+
+/*
+ * We got an error parsing the command line.
+ */
+static void
+usage(void)
+{
+ fprintf(stderr,
+ "Usage: chat [-esSvV] [-f chat-file] [-r report-file] [-t timeout]\n"
+ " [-T phone-number] [-U phone-number2] [chat-script]\n"
+ "where chat-script has the form:\n"
+ " [...[[expect[-send[-expect...]] send expect[-send[-expect]] ...]]]\n");
+ exit(1);
+}
+
+/*
+ * Send a message to syslog and/or stderr.
+ */
+void
+chat_logf(const char *fmt, ...)
+{
+ char line[1024];
+ va_list args;
+
+ va_start(args, fmt);
+ vfmtmsg(line, sizeof(line), fmt, args);
+ va_end(args);
+ if (to_log)
+ syslog(LOG_INFO, "%s", line);
+ if (to_stderr)
+ fprintf(stderr, "%s\n", line);
+}
+
+/*
+ * Print an error message and terminate.
+ */
+
+void
+fatal(int code, const char *fmt, ...)
+{
+ char line[1024];
+ va_list args;
+
+ va_start(args, fmt);
+ vfmtmsg(line, sizeof(line), fmt, args);
+ va_end(args);
+ if (to_log)
+ syslog(LOG_ERR, "%s", line);
+ if (to_stderr)
+ fprintf(stderr, "%s\n", line);
+ terminate(code);
+}
+
+static int alarmed;
+
+SIGTYPE sigalrm(int signo __unused)
+{
+ int flags;
+
+ alarm(1);
+ alarmed = 1; /* Reset alarm to avoid race window */
+ signal(SIGALRM, sigalrm); /* that can cause hanging in read() */
+
+ if ((flags = fcntl(0, F_GETFL, 0)) == -1)
+ fatal(2, "Can't get file mode flags on stdin: %m");
+
+ if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1)
+ fatal(2, "Can't set file mode flags on stdin: %m");
+
+ if (verbose)
+ chat_logf("alarm");
+}
+
+SIGTYPE sigint(int signo __unused)
+{
+ fatal(2, "SIGINT");
+}
+
+SIGTYPE sigterm(int signo __unused)
+{
+ fatal(2, "SIGTERM");
+}
+
+SIGTYPE sighup(int signo __unused)
+{
+ fatal(2, "SIGHUP");
+}
+
+void init(void)
+{
+ signal(SIGINT, sigint);
+ signal(SIGTERM, sigterm);
+ signal(SIGHUP, sighup);
+
+ set_tty_parameters();
+ signal(SIGALRM, sigalrm);
+ alarm(0);
+ alarmed = 0;
+}
+
+void set_tty_parameters(void)
+{
+#if defined(get_term_param)
+ term_parms t;
+
+ if (get_term_param (&t) < 0)
+ fatal(2, "Can't get terminal parameters: %m");
+
+ saved_tty_parameters = t;
+ have_tty_parameters = 1;
+
+ t.c_iflag |= IGNBRK | ISTRIP | IGNPAR;
+ t.c_oflag = 0;
+ t.c_lflag = 0;
+ t.c_cc[VERASE] =
+ t.c_cc[VKILL] = 0;
+ t.c_cc[VMIN] = 1;
+ t.c_cc[VTIME] = 0;
+
+ if (set_term_param (&t) < 0)
+ fatal(2, "Can't set terminal parameters: %m");
+#endif
+}
+
+void break_sequence(void)
+{
+ tcsendbreak (0, 0);
+}
+
+void terminate(int status)
+{
+ echo_stderr(-1);
+ if (report_file != (char *) 0 && report_fp != (FILE *) NULL) {
+/*
+ * Allow the last of the report string to be gathered before we terminate.
+ */
+ if (report_gathering) {
+ int c;
+ size_t rep_len;
+
+ rep_len = strlen(report_buffer);
+ while (rep_len + 1 < sizeof(report_buffer)) {
+ alarm(1);
+ c = get_char();
+ alarm(0);
+ if (c < 0 || iscntrl(c))
+ break;
+ report_buffer[rep_len] = c;
+ ++rep_len;
+ }
+ report_buffer[rep_len] = 0;
+ fprintf (report_fp, "chat: %s\n", report_buffer);
+ }
+ if (verbose)
+ fprintf (report_fp, "Closing \"%s\".\n", report_file);
+ fclose (report_fp);
+ report_fp = (FILE *) NULL;
+ }
+
+#if defined(get_term_param)
+ if (have_tty_parameters) {
+ if (set_term_param (&saved_tty_parameters) < 0)
+ fatal(2, "Can't restore terminal parameters: %m");
+ }
+#endif
+
+ exit(status);
+}
+
+/*
+ * 'Clean up' this string.
+ */
+char *
+clean(char *s, int sending)
+{
+ char temp[STR_LEN], cur_chr;
+ char *s1, *phchar;
+ int add_return = sending;
+#define isoctal(chr) (((chr) >= '0') && ((chr) <= '7'))
+
+ s1 = temp;
+ /* Don't overflow buffer, leave room for chars we append later */
+ while (*s && s1 - temp < (off_t)(sizeof(temp) - 2 - add_return)) {
+ cur_chr = *s++;
+ if (cur_chr == '^') {
+ cur_chr = *s++;
+ if (cur_chr == '\0') {
+ *s1++ = '^';
+ break;
+ }
+ cur_chr &= 0x1F;
+ if (cur_chr != 0) {
+ *s1++ = cur_chr;
+ }
+ continue;
+ }
+
+ if (cur_chr != '\\') {
+ *s1++ = cur_chr;
+ continue;
+ }
+
+ cur_chr = *s++;
+ if (cur_chr == '\0') {
+ if (sending) {
+ *s1++ = '\\';
+ *s1++ = '\\';
+ }
+ break;
+ }
+
+ switch (cur_chr) {
+ case 'b':
+ *s1++ = '\b';
+ break;
+
+ case 'c':
+ if (sending && *s == '\0')
+ add_return = 0;
+ else
+ *s1++ = cur_chr;
+ break;
+
+ case '\\':
+ case 'K':
+ case 'p':
+ case 'd':
+ if (sending)
+ *s1++ = '\\';
+
+ *s1++ = cur_chr;
+ break;
+
+ case 'T':
+ if (sending && phone_num) {
+ for ( phchar = phone_num; *phchar != '\0'; phchar++)
+ *s1++ = *phchar;
+ }
+ else {
+ *s1++ = '\\';
+ *s1++ = 'T';
+ }
+ break;
+
+ case 'U':
+ if (sending && phone_num2) {
+ for ( phchar = phone_num2; *phchar != '\0'; phchar++)
+ *s1++ = *phchar;
+ }
+ else {
+ *s1++ = '\\';
+ *s1++ = 'U';
+ }
+ break;
+
+ case 'q':
+ quiet = 1;
+ break;
+
+ case 'r':
+ *s1++ = '\r';
+ break;
+
+ case 'n':
+ *s1++ = '\n';
+ break;
+
+ case 's':
+ *s1++ = ' ';
+ break;
+
+ case 't':
+ *s1++ = '\t';
+ break;
+
+ case 'N':
+ if (sending) {
+ *s1++ = '\\';
+ *s1++ = '\0';
+ }
+ else
+ *s1++ = 'N';
+ break;
+
+ default:
+ if (isoctal (cur_chr)) {
+ cur_chr &= 0x07;
+ if (isoctal (*s)) {
+ cur_chr <<= 3;
+ cur_chr |= *s++ - '0';
+ if (isoctal (*s)) {
+ cur_chr <<= 3;
+ cur_chr |= *s++ - '0';
+ }
+ }
+
+ if (cur_chr != 0 || sending) {
+ if (sending && (cur_chr == '\\' || cur_chr == 0))
+ *s1++ = '\\';
+ *s1++ = cur_chr;
+ }
+ break;
+ }
+
+ if (sending)
+ *s1++ = '\\';
+ *s1++ = cur_chr;
+ break;
+ }
+ }
+
+ if (add_return)
+ *s1++ = '\r';
+
+ *s1++ = '\0'; /* guarantee closure */
+ *s1++ = '\0'; /* terminate the string */
+ return dup_mem (temp, (size_t) (s1 - temp)); /* may have embedded nuls */
+}
+
+/*
+ * A modified version of 'strtok'. This version skips \ sequences.
+ */
+
+char *
+expect_strtok (char *s, const char *term)
+{
+ static char *str = blank;
+ int escape_flag = 0;
+ char *result;
+
+/*
+ * If a string was specified then do initial processing.
+ */
+ if (s)
+ str = s;
+
+/*
+ * If this is the escape flag then reset it and ignore the character.
+ */
+ if (*str)
+ result = str;
+ else
+ result = (char *) 0;
+
+ while (*str) {
+ if (escape_flag) {
+ escape_flag = 0;
+ ++str;
+ continue;
+ }
+
+ if (*str == '\\') {
+ ++str;
+ escape_flag = 1;
+ continue;
+ }
+
+/*
+ * If this is not in the termination string, continue.
+ */
+ if (strchr (term, *str) == (char *) 0) {
+ ++str;
+ continue;
+ }
+
+/*
+ * This is the terminator. Mark the end of the string and stop.
+ */
+ *str++ = '\0';
+ break;
+ }
+ return (result);
+}
+
+/*
+ * Process the expect string
+ */
+
+void
+chat_expect(char *s)
+{
+ char *expect;
+ char *reply;
+
+ if (strcmp(s, "HANGUP") == 0) {
+ ++hup_next;
+ return;
+ }
+
+ if (strcmp(s, "ABORT") == 0) {
+ ++abort_next;
+ return;
+ }
+
+ if (strcmp(s, "CLR_ABORT") == 0) {
+ ++clear_abort_next;
+ return;
+ }
+
+ if (strcmp(s, "REPORT") == 0) {
+ ++report_next;
+ return;
+ }
+
+ if (strcmp(s, "CLR_REPORT") == 0) {
+ ++clear_report_next;
+ return;
+ }
+
+ if (strcmp(s, "TIMEOUT") == 0) {
+ ++timeout_next;
+ return;
+ }
+
+ if (strcmp(s, "ECHO") == 0) {
+ ++echo_next;
+ return;
+ }
+
+ if (strcmp(s, "SAY") == 0) {
+ ++say_next;
+ return;
+ }
+
+/*
+ * Fetch the expect and reply string.
+ */
+ for (;;) {
+ expect = expect_strtok (s, "-");
+ s = (char *) 0;
+
+ if (expect == (char *) 0)
+ return;
+
+ reply = expect_strtok (s, "-");
+
+/*
+ * Handle the expect string. If successful then exit.
+ */
+ if (get_string (expect))
+ return;
+
+/*
+ * If there is a sub-reply string then send it. Otherwise any condition
+ * is terminal.
+ */
+ if (reply == (char *) 0 || exit_code != 3)
+ break;
+
+ chat_send (reply);
+ }
+
+/*
+ * The expectation did not occur. This is terminal.
+ */
+ if (fail_reason)
+ chat_logf("Failed (%s)", fail_reason);
+ else
+ chat_logf("Failed");
+ terminate(exit_code);
+}
+
+/*
+ * Translate the input character to the appropriate string for printing
+ * the data.
+ */
+
+char *
+character(int c)
+{
+ static char string[10];
+ const char *meta;
+
+ meta = (c & 0x80) ? "M-" : "";
+ c &= 0x7F;
+
+ if (c < 32)
+ sprintf(string, "%s^%c", meta, (int)c + '@');
+ else if (c == 127)
+ sprintf(string, "%s^?", meta);
+ else
+ sprintf(string, "%s%c", meta, c);
+
+ return (string);
+}
+
+/*
+ * process the reply string
+ */
+void
+chat_send(char *s)
+{
+ if (say_next) {
+ say_next = 0;
+ s = clean(s,0);
+ write(STDERR_FILENO, s, strlen(s));
+ free(s);
+ return;
+ }
+
+ if (hup_next) {
+ hup_next = 0;
+ if (strcmp(s, "OFF") == 0)
+ signal(SIGHUP, SIG_IGN);
+ else
+ signal(SIGHUP, sighup);
+ return;
+ }
+
+ if (echo_next) {
+ echo_next = 0;
+ echo = (strcmp(s, "ON") == 0);
+ return;
+ }
+
+ if (abort_next) {
+ char *s1;
+
+ abort_next = 0;
+
+ if (n_aborts >= MAX_ABORTS)
+ fatal(2, "Too many ABORT strings");
+
+ s1 = clean(s, 0);
+
+ if (strlen(s1) > strlen(s)
+ || strlen(s1) + 1 > sizeof(fail_buffer))
+ fatal(1, "Illegal or too-long ABORT string ('%v')", s);
+
+ abort_string[n_aborts++] = s1;
+
+ if (verbose)
+ chat_logf("abort on (%v)", s);
+ return;
+ }
+
+ if (clear_abort_next) {
+ char *s1;
+ int i;
+ int old_max;
+ int pack = 0;
+
+ clear_abort_next = 0;
+
+ s1 = clean(s, 0);
+
+ if (strlen(s1) > strlen(s)
+ || strlen(s1) + 1 > sizeof(fail_buffer))
+ fatal(1, "Illegal or too-long CLR_ABORT string ('%v')", s);
+
+ old_max = n_aborts;
+ for (i=0; i < n_aborts; i++) {
+ if ( strcmp(s1,abort_string[i]) == 0 ) {
+ free(abort_string[i]);
+ abort_string[i] = NULL;
+ pack++;
+ n_aborts--;
+ if (verbose)
+ chat_logf("clear abort on (%v)", s);
+ }
+ }
+ free(s1);
+ if (pack)
+ pack_array(abort_string,old_max);
+ return;
+ }
+
+ if (report_next) {
+ char *s1;
+
+ report_next = 0;
+ if (n_reports >= MAX_REPORTS)
+ fatal(2, "Too many REPORT strings");
+
+ s1 = clean(s, 0);
+
+ if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
+ fatal(1, "Illegal or too-long REPORT string ('%v')", s);
+
+ report_string[n_reports++] = s1;
+
+ if (verbose)
+ chat_logf("report (%v)", s);
+ return;
+ }
+
+ if (clear_report_next) {
+ char *s1;
+ int i;
+ int old_max;
+ int pack = 0;
+
+ clear_report_next = 0;
+
+ s1 = clean(s, 0);
+
+ if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
+ fatal(1, "Illegal or too-long REPORT string ('%v')", s);
+
+ old_max = n_reports;
+ for (i=0; i < n_reports; i++) {
+ if ( strcmp(s1,report_string[i]) == 0 ) {
+ free(report_string[i]);
+ report_string[i] = NULL;
+ pack++;
+ n_reports--;
+ if (verbose)
+ chat_logf("clear report (%v)", s);
+ }
+ }
+ free(s1);
+ if (pack)
+ pack_array(report_string,old_max);
+
+ return;
+ }
+
+ if (timeout_next) {
+ timeout_next = 0;
+ timeout = atoi(s);
+
+ if (timeout <= 0)
+ timeout = DEFAULT_CHAT_TIMEOUT;
+
+ if (verbose)
+ chat_logf("timeout set to %d seconds", timeout);
+
+ return;
+ }
+
+ if (strcmp(s, "EOT") == 0)
+ s = strdup("^D\\c");
+ else if (strcmp(s, "BREAK") == 0)
+ s = strdup("\\K\\c");
+
+ if (!put_string(s))
+ fatal(1, "Failed");
+}
+
+int
+get_char(void)
+{
+ int status;
+ char c;
+
+ status = read(STDIN_FILENO, &c, 1);
+
+ switch (status) {
+ case 1:
+ return ((int)c & 0x7F);
+
+ default:
+ chat_logf("warning: read() on stdin returned %d", status);
+
+ case -1:
+ if ((status = fcntl(0, F_GETFL, 0)) == -1)
+ fatal(2, "Can't get file mode flags on stdin: %m");
+
+ if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
+ fatal(2, "Can't set file mode flags on stdin: %m");
+
+ return (-1);
+ }
+}
+
+int put_char(int c)
+{
+ int status;
+ char ch = c;
+
+ usleep(10000); /* inter-character typing delay (?) */
+
+ status = write(STDOUT_FILENO, &ch, 1);
+
+ switch (status) {
+ case 1:
+ return (0);
+
+ default:
+ chat_logf("warning: write() on stdout returned %d", status);
+
+ case -1:
+ if ((status = fcntl(0, F_GETFL, 0)) == -1)
+ fatal(2, "Can't get file mode flags on stdin, %m");
+
+ if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
+ fatal(2, "Can't set file mode flags on stdin: %m");
+
+ return (-1);
+ }
+}
+
+int
+write_char(int c)
+{
+ if (alarmed || put_char(c) < 0) {
+ alarm(0);
+ alarmed = 0;
+
+ if (verbose) {
+ if (errno == EINTR || errno == EWOULDBLOCK)
+ chat_logf(" -- write timed out");
+ else
+ chat_logf(" -- write failed: %m");
+ }
+ return (0);
+ }
+ return (1);
+}
+
+int
+put_string(char *s)
+{
+ quiet = 0;
+ s = clean(s, 1);
+
+ if (verbose)
+ chat_logf("send (%v)", quiet ? "??????" : s);
+
+ alarm(timeout); alarmed = 0;
+
+ while (*s) {
+ char c = *s++;
+
+ if (c != '\\') {
+ if (!write_char (c))
+ return 0;
+ continue;
+ }
+
+ c = *s++;
+ switch (c) {
+ case 'd':
+ sleep(1);
+ break;
+
+ case 'K':
+ break_sequence();
+ break;
+
+ case 'p':
+ usleep(10000); /* 1/100th of a second (arg is microseconds) */
+ break;
+
+ default:
+ if (!write_char (c))
+ return 0;
+ break;
+ }
+ }
+
+ alarm(0);
+ alarmed = 0;
+ return (1);
+}
+
+/*
+ * Echo a character to stderr.
+ * When called with -1, a '\n' character is generated when
+ * the cursor is not at the beginning of a line.
+ */
+void
+echo_stderr(int n)
+{
+ static int need_lf;
+ char *s;
+
+ switch (n) {
+ case '\r': /* ignore '\r' */
+ break;
+ case -1:
+ if (need_lf == 0)
+ break;
+ /* FALLTHROUGH */
+ case '\n':
+ write(STDERR_FILENO, "\n", 1);
+ need_lf = 0;
+ break;
+ default:
+ s = character(n);
+ write(STDERR_FILENO, s, strlen(s));
+ need_lf = 1;
+ break;
+ }
+}
+
+/*
+ * 'Wait for' this string to appear on this file descriptor.
+ */
+int
+get_string(char *string)
+{
+ char temp[STR_LEN];
+ int c;
+ size_t len, minlen;
+ char *s = temp, *end = s + STR_LEN;
+ char *logged = temp;
+
+ fail_reason = (char *)0;
+
+ if (strlen(string) > STR_LEN) {
+ chat_logf("expect string is too long");
+ exit_code = 1;
+ return 0;
+ }
+
+ string = clean(string, 0);
+ len = strlen(string);
+ minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1;
+
+ if (verbose)
+ chat_logf("expect (%v)", string);
+
+ if (len == 0) {
+ if (verbose)
+ chat_logf("got it");
+ return (1);
+ }
+
+ alarm(timeout);
+ alarmed = 0;
+
+ while ( ! alarmed && (c = get_char()) >= 0) {
+ int n, abort_len, report_len;
+
+ if (echo)
+ echo_stderr(c);
+ if (verbose && c == '\n') {
+ if (s == logged)
+ chat_logf(""); /* blank line */
+ else
+ chat_logf("%0.*v", s - logged, logged);
+ logged = s + 1;
+ }
+
+ *s++ = c;
+
+ if (verbose && s >= logged + 80) {
+ chat_logf("%0.*v", s - logged, logged);
+ logged = s;
+ }
+
+ if (Verbose) {
+ if (c == '\n')
+ fputc( '\n', stderr );
+ else if (c != '\r')
+ fprintf( stderr, "%s", character(c) );
+ }
+
+ if (!report_gathering) {
+ for (n = 0; n < n_reports; ++n) {
+ if ((report_string[n] != (char*) NULL) &&
+ s - temp >= (report_len = strlen(report_string[n])) &&
+ strncmp(s - report_len, report_string[n], report_len) == 0) {
+ time_t time_now = time ((time_t*) NULL);
+ struct tm* tm_now = localtime (&time_now);
+
+ strftime (report_buffer, 20, "%b %d %H:%M:%S ", tm_now);
+ strcat (report_buffer, report_string[n]);
+
+ report_string[n] = (char *) NULL;
+ report_gathering = 1;
+ break;
+ }
+ }
+ }
+ else {
+ if (!iscntrl (c)) {
+ int rep_len = strlen (report_buffer);
+ report_buffer[rep_len] = c;
+ report_buffer[rep_len + 1] = '\0';
+ }
+ else {
+ report_gathering = 0;
+ fprintf (report_fp, "chat: %s\n", report_buffer);
+ }
+ }
+
+ if ((size_t)(s - temp) >= len &&
+ c == string[len - 1] &&
+ strncmp(s - len, string, len) == 0) {
+ if (verbose) {
+ if (s > logged)
+ chat_logf("%0.*v", s - logged, logged);
+ chat_logf(" -- got it\n");
+ }
+
+ alarm(0);
+ alarmed = 0;
+ return (1);
+ }
+
+ for (n = 0; n < n_aborts; ++n) {
+ if (s - temp >= (abort_len = strlen(abort_string[n])) &&
+ strncmp(s - abort_len, abort_string[n], abort_len) == 0) {
+ if (verbose) {
+ if (s > logged)
+ chat_logf("%0.*v", s - logged, logged);
+ chat_logf(" -- failed");
+ }
+
+ alarm(0);
+ alarmed = 0;
+ exit_code = n + 4;
+ strcpy(fail_reason = fail_buffer, abort_string[n]);
+ return (0);
+ }
+ }
+
+ if (s >= end) {
+ if (logged < s - minlen) {
+ chat_logf("%0.*v", s - logged, logged);
+ logged = s;
+ }
+ s -= minlen;
+ memmove(temp, s, minlen);
+ logged = temp + (logged - s);
+ s = temp + minlen;
+ }
+
+ if (alarmed && verbose)
+ chat_logf("warning: alarm synchronization problem");
+ }
+
+ alarm(0);
+
+ exit_code = 3;
+ alarmed = 0;
+ return (0);
+}
+
+void
+pack_array(char **array, int end)
+{
+ int i, j;
+
+ for (i = 0; i < end; i++) {
+ if (array[i] == NULL) {
+ for (j = i+1; j < end; ++j)
+ if (array[j] != NULL)
+ array[i++] = array[j];
+ for (; i < end; ++i)
+ array[i] = NULL;
+ break;
+ }
+ }
+}
+
+/*
+ * vfmtmsg - format a message into a buffer. Like vsprintf except we
+ * also specify the length of the output buffer, and we handle the
+ * %m (error message) format.
+ * Doesn't do floating-point formats.
+ * Returns the number of chars put into buf.
+ */
+#define OUTCHAR(c) (buflen > 0? (--buflen, *buf++ = (c)): 0)
+
+int
+vfmtmsg(char *buf, int buflen, const char *fmt, va_list args)
+{
+ int c, i, n;
+ int width, prec, fillch;
+ int base, len, neg, quoted;
+ unsigned long val = 0;
+ char *str, *buf0;
+ const char *f;
+ unsigned char *p;
+ char num[32];
+ static char hexchars[] = "0123456789abcdef";
+
+ buf0 = buf;
+ --buflen;
+ while (buflen > 0) {
+ for (f = fmt; *f != '%' && *f != 0; ++f)
+ ;
+ if (f > fmt) {
+ len = f - fmt;
+ if (len > buflen)
+ len = buflen;
+ memcpy(buf, fmt, len);
+ buf += len;
+ buflen -= len;
+ fmt = f;
+ }
+ if (*fmt == 0)
+ break;
+ c = *++fmt;
+ width = prec = 0;
+ fillch = ' ';
+ if (c == '0') {
+ fillch = '0';
+ c = *++fmt;
+ }
+ if (c == '*') {
+ width = va_arg(args, int);
+ c = *++fmt;
+ } else {
+ while (isdigit(c)) {
+ width = width * 10 + c - '0';
+ c = *++fmt;
+ }
+ }
+ if (c == '.') {
+ c = *++fmt;
+ if (c == '*') {
+ prec = va_arg(args, int);
+ c = *++fmt;
+ } else {
+ while (isdigit(c)) {
+ prec = prec * 10 + c - '0';
+ c = *++fmt;
+ }
+ }
+ }
+ str = NULL;
+ base = 0;
+ neg = 0;
+ ++fmt;
+ switch (c) {
+ case 'd':
+ i = va_arg(args, int);
+ if (i < 0) {
+ neg = 1;
+ val = -i;
+ } else
+ val = i;
+ base = 10;
+ break;
+ case 'o':
+ val = va_arg(args, unsigned int);
+ base = 8;
+ break;
+ case 'x':
+ val = va_arg(args, unsigned int);
+ base = 16;
+ break;
+ case 'p':
+ val = (unsigned long) va_arg(args, void *);
+ base = 16;
+ neg = 2;
+ break;
+ case 's':
+ str = va_arg(args, char *);
+ break;
+ case 'c':
+ num[0] = va_arg(args, int);
+ num[1] = 0;
+ str = num;
+ break;
+ case 'm':
+ str = strerror(errno);
+ break;
+ case 'v': /* "visible" string */
+ case 'q': /* quoted string */
+ quoted = c == 'q';
+ p = va_arg(args, unsigned char *);
+ if (fillch == '0' && prec > 0) {
+ n = prec;
+ } else {
+ n = strlen((char *)p);
+ if (prec > 0 && prec < n)
+ n = prec;
+ }
+ while (n > 0 && buflen > 0) {
+ c = *p++;
+ --n;
+ if (!quoted && c >= 0x80) {
+ OUTCHAR('M');
+ OUTCHAR('-');
+ c -= 0x80;
+ }
+ if (quoted && (c == '"' || c == '\\'))
+ OUTCHAR('\\');
+ if (c < 0x20 || (0x7f <= c && c < 0xa0)) {
+ if (quoted) {
+ OUTCHAR('\\');
+ switch (c) {
+ case '\t': OUTCHAR('t'); break;
+ case '\n': OUTCHAR('n'); break;
+ case '\b': OUTCHAR('b'); break;
+ case '\f': OUTCHAR('f'); break;
+ default:
+ OUTCHAR('x');
+ OUTCHAR(hexchars[c >> 4]);
+ OUTCHAR(hexchars[c & 0xf]);
+ }
+ } else {
+ if (c == '\t')
+ OUTCHAR(c);
+ else {
+ OUTCHAR('^');
+ OUTCHAR(c ^ 0x40);
+ }
+ }
+ } else
+ OUTCHAR(c);
+ }
+ continue;
+ default:
+ *buf++ = '%';
+ if (c != '%')
+ --fmt; /* so %z outputs %z etc. */
+ --buflen;
+ continue;
+ }
+ if (base != 0) {
+ str = num + sizeof(num);
+ *--str = 0;
+ while (str > num + neg) {
+ *--str = hexchars[val % base];
+ val = val / base;
+ if (--prec <= 0 && val == 0)
+ break;
+ }
+ switch (neg) {
+ case 1:
+ *--str = '-';
+ break;
+ case 2:
+ *--str = 'x';
+ *--str = '0';
+ break;
+ }
+ len = num + sizeof(num) - 1 - str;
+ } else {
+ len = strlen(str);
+ if (prec > 0 && len > prec)
+ len = prec;
+ }
+ if (width > 0) {
+ if (width > buflen)
+ width = buflen;
+ if ((n = width - len) > 0) {
+ buflen -= n;
+ for (; n > 0; --n)
+ *buf++ = fillch;
+ }
+ }
+ if (len > buflen)
+ len = buflen;
+ memcpy(buf, str, len);
+ buf += len;
+ buflen -= len;
+ }
+ *buf = 0;
+ return buf - buf0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-06 13:07:08 +0000