From 42f98236389c506f0790b56d633bfbea3b12c20e Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 27 Nov 1997 06:00:06 +0000 Subject: [PATCH] add -s, -S, -T, -U flags --- chat/chat.8 | 31 +- chat/chat.c | 1417 +++++++++++++++++++++++++-------------------------- 2 files changed, 727 insertions(+), 721 deletions(-) diff --git a/chat/chat.8 b/chat/chat.8 index 55c9c93..634d9a4 100644 --- a/chat/chat.8 +++ b/chat/chat.8 @@ -1,12 +1,12 @@ .\" -*- nroff -*- .\" manual page [] for chat 1.8 -.\" $Id: chat.8,v 1.5 1997/07/14 03:49:41 paulus Exp $ +.\" $Id: chat.8,v 1.6 1997/11/27 06:00:06 paulus Exp $ .\" SH section heading .\" SS subsection heading .\" LP paragraph .\" IP indented paragraph .\" TP hanging label -.TH CHAT 8 "5 May 1995" "Chat Version 1.9" +.TH CHAT 8 "27 Sep 1997" "Chat Version 1.17" .SH NAME chat \- Automated conversational script with a modem .SH SYNOPSIS @@ -51,19 +51,40 @@ to \fIstderr\fR. .TP .B -v Request that the \fIchat\fR script be executed in a verbose mode. The -\fIchat\fR program will then log all text received from the modem and -the output strings which it sends to the SYSLOG. +\fIchat\fR program will then log the execution state of the chat +script as well as all text received from the modem and the output +strings sent to the modem. The default is to log through the SYSLOG; +the logging method may be altered with the -S and -s flags. .TP .B -V Request that the \fIchat\fR script be executed in a stderr verbose mode. The \fIchat\fR program will then log all text received from the -modem and the output strings which it sends to the stderr device. This +modem and the output strings sent to the modem to the stderr device. This device is usually the local console at the station running the chat or pppd program. This option will not work properly if the stderr is redirected to the /dev/null location as is the case should pppd be run in the 'detached' mode. In that case, use the '-v' option to record the session on the SYSLOG device. .TP +.B -s +Use stderr. All log messages from '-v' and all error messages will be +sent to stderr. +.TP +.B -S +Do not use the SYSLOG. By default, error messages are sent to the +SYSLOG. The use of -S will prevent both log messages from '-v' and +error messages from being sent to the SYSLOG. +.TP +.B -T \fI +Pass in an arbitary string, usually a phone number, that will be +substituted for the \\T substitution metacharacter in a send string. +.TP +.B -U \fI +Pass in a second string, usually a phone number, that will be +substituted for the \\U substitution metacharacter in a send string. +This is useful when dialing an ISDN terminal adapter that requires two +numbers. +.TP .B script If the script is not specified in a file with the \fI-f\fR option then the script is included as parameters to the \fIchat\fR program. diff --git a/chat/chat.c b/chat/chat.c index f298c6a..0068413 100644 --- a/chat/chat.c +++ b/chat/chat.c @@ -5,7 +5,7 @@ * 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 condtion. + * 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" @@ -14,6 +14,10 @@ * 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 + * * * Added SAY keyword to send output to stderr. * This allows to turn ECHO OFF and to output specific, user selected, @@ -48,6 +52,10 @@ * Added -r "report file" switch & REPORT keyword. * Robert Geer * + * Added -s "use stderr" and -S "don't use syslog" switches. + * June 18, 1997 + * Karl O. Pinc + * * * Added -e "echo" switch & ECHO keyword * Dick Streefland @@ -70,7 +78,7 @@ */ #ifndef lint -static char rcsid[] = "$Id: chat.c,v 1.15 1997/07/14 03:50:22 paulus Exp $"; +static char rcsid[] = "$Id: chat.c,v 1.16 1997/11/27 06:00:06 paulus Exp $"; #endif #include @@ -98,16 +106,31 @@ static char rcsid[] = "$Id: chat.c,v 1.15 1997/07/14 03:50:22 paulus Exp $"; #include #endif +#if __STDC__ +#include +#define __V(x) x +#else +#include +#define __V(x) (va_alist) va_dcl +#define const +#endif + #define STR_LEN 1024 #ifndef SIGTYPE #define SIGTYPE void #endif -#ifdef __STDC__ #undef __P +#undef __V + +#ifdef __STDC__ +#include +#define __V(x) x #define __P(x) x #else +#include +#define __V(x) (va_alist) va_dcl #define __P(x) () #define const #endif @@ -118,7 +141,7 @@ static char rcsid[] = "$Id: chat.c,v 1.15 1997/07/14 03:50:22 paulus Exp $"; /*************** Micro getopt() *********************************************/ #define OPTION(c,v) (_O&2&&**v?*(*v)++:!c||_O&4?0:(!(_O&1)&& \ - (--c,++v),_O=4,c&&**v=='-'&&v[0][1]?*++*v=='-'\ + ((--c,++v),_O=4,c)&&**v=='-'&&v[0][1]?*++*v=='-'\ &&!v[0][1]?(--c,++v,0):(_O=2,*(*v)++):0)) #define OPTARG(c,v) (_O&2?**v||(++v,--c)?(_O=1,--c,*v++): \ (_O=4,(char*)0):(char*)0) @@ -136,6 +159,8 @@ char *program_name; int echo = 0; int verbose = 0; +int to_log = 1; +int to_stderr = 0; int Verbose = 0; int quiet = 0; int report = 0; @@ -143,6 +168,8 @@ int exit_code = 0; FILE* report_fp = (FILE *) 0; char *report_file = (char *) 0; char *chat_file = (char *) 0; +char *phone_num = (char *) 0; +char *phone_num2 = (char *) 0; int timeout = DEFAULT_CHAT_TIMEOUT; int have_tty_parameters = 0; @@ -176,10 +203,8 @@ int say_next = 0, hup_next = 0; void *dup_mem __P((void *b, size_t c)); void *copy_of __P((char *s)); void usage __P((void)); -void logf __P((const char *str)); -void logflush __P((void)); -void fatal __P((const char *msg)); -void sysfatal __P((const char *msg)); +void logf __P((const char *fmt, ...)); +void fatal __P((int code, const char *fmt, ...)); SIGTYPE sigalrm __P((int signo)); SIGTYPE sigint __P((int signo)); SIGTYPE sigterm __P((int signo)); @@ -202,166 +227,158 @@ void chat_expect __P((register char *s)); char *clean __P((register char *s, int sending)); void break_sequence __P((void)); void terminate __P((int status)); -void die __P((void)); void pack_array __P((char **array, int end)); char *expect_strtok __P((char *, char *)); +int vfmtmsg __P((char *, int, const char *, va_list)); /* vsprintf++ */ int main __P((int, char *[])); void *dup_mem(b, c) void *b; size_t c; - { +{ void *ans = malloc (c); if (!ans) - { - fatal ("memory error!\n"); - } + fatal(2, "memory error!"); + memcpy (ans, b, c); return ans; - } +} void *copy_of (s) char *s; - { +{ return dup_mem (s, strlen (s) + 1); - } +} /* - * chat [ -v ] [ -t timeout ] [ -f chat-file ] [ -r report-file ] \ + * chat [ -v ] [-T number] [-U number] [ -t timeout ] [ -f chat-file ] \ + * [ -r report-file ] \ * [...[[expect[-say[-expect...]] say expect[-say[-expect]] ...]]] * * Perform a UUCP-dialer-like chat script on stdin and stdout. */ int main(argc, argv) -int argc; -char **argv; - { + int argc; + char **argv; +{ int option; char *arg; program_name = *argv; tzset(); - while ((option = OPTION(argc, argv)) != 0) - { - switch (option) - { - case 'e': - ++echo; - break; + while ((option = OPTION(argc, argv)) != 0) { + switch (option) { + case 'e': + ++echo; + break; - case 'v': - ++verbose; - break; + case 'v': + ++verbose; + break; - case 'V': - ++Verbose; - break; + case 'V': + ++Verbose; + break; - case 'f': - if ((arg = OPTARG(argc, argv)) != NULL) - { - chat_file = copy_of(arg); - } - else - { - usage(); - } - break; + case 's': + ++to_stderr; + break; - case 't': - if ((arg = OPTARG(argc, argv)) != NULL) - { - timeout = atoi(arg); - } - else - { - usage(); - } - break; + case 'S': + to_log = 0; + break; - case 'r': - arg = OPTARG (argc, argv); - if (arg) - { - if (report_fp != NULL) - { - fclose (report_fp); - } - report_file = copy_of (arg); - report_fp = fopen (report_file, "a"); - if (report_fp != NULL) - { - if (verbose) - { - fprintf (report_fp, "Opening \"%s\"...\n", - report_file); - } - report = 1; - } - } - break; + case 'f': + if ((arg = OPTARG(argc, argv)) != NULL) + chat_file = copy_of(arg); + else + usage(); + break; - default: + case 't': + if ((arg = OPTARG(argc, argv)) != NULL) + timeout = atoi(arg); + else usage(); - break; + break; + + case 'r': + arg = OPTARG (argc, argv); + if (arg) { + if (report_fp != NULL) + fclose (report_fp); + report_file = copy_of (arg); + report_fp = fopen (report_file, "a"); + if (report_fp != NULL) { + if (verbose) + fprintf (report_fp, "Opening \"%s\"...\n", + report_file); + report = 1; + } } - } + break; + + case 'T': + if ((arg = OPTARG(argc, argv)) != NULL) + phone_num = copy_of(arg); + else + usage(); + break; + + case 'U': + if ((arg = OPTARG(argc, argv)) != NULL) + phone_num2 = copy_of(arg); + else + usage(); + break; + + default: + usage(); + break; + } + } /* * Default the report file to the stderr location */ if (report_fp == NULL) - { report_fp = stderr; - } + if (to_log) { #ifdef ultrix - openlog("chat", LOG_PID); + openlog("chat", LOG_PID); #else - openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2); + openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2); - if (verbose) - { - setlogmask(LOG_UPTO(LOG_INFO)); - } - else - { - setlogmask(LOG_UPTO(LOG_WARNING)); - } + if (verbose) + setlogmask(LOG_UPTO(LOG_INFO)); + else + setlogmask(LOG_UPTO(LOG_WARNING)); #endif + } init(); - if (chat_file != NULL) - { + if (chat_file != NULL) { arg = ARG(argc, argv); if (arg != NULL) - { usage(); - } else - { do_file (chat_file); - } - } - else - { - while ((arg = ARG(argc, argv)) != NULL) - { + } else { + while ((arg = ARG(argc, argv)) != NULL) { chat_expect(arg); if ((arg = ARG(argc, argv)) != NULL) - { chat_send(arg); - } - } } + } terminate(0); return 0; - } +} /* * Process a chat script when read from a file. @@ -369,233 +386,183 @@ char **argv; void do_file (chat_file) char *chat_file; - { - int linect, len, sendflg; +{ + int linect, sendflg; char *sp, *arg, quote; char buf [STR_LEN]; FILE *cfp; cfp = fopen (chat_file, "r"); if (cfp == NULL) - { - syslog (LOG_ERR, "%s -- open failed: %m", chat_file); - terminate (1); - } + fatal(1, "%s -- open failed: %m", chat_file); linect = 0; sendflg = 0; - while (fgets(buf, STR_LEN, cfp) != NULL) - { + 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; + if ( *sp == '#' ) + continue; - while (*sp != '\0') - { - if (*sp == ' ' || *sp == '\t') - { + while (*sp != '\0') { + if (*sp == ' ' || *sp == '\t') { ++sp; continue; - } + } - if (*sp == '"' || *sp == '\'') - { + if (*sp == '"' || *sp == '\'') { quote = *sp++; arg = sp; - while (*sp != quote) - { + while (*sp != quote) { if (*sp == '\0') - { - syslog (LOG_ERR, "unterminated quote (line %d)", - linect); - terminate (1); - } - - if (*sp++ == '\\') - { + fatal(1, "unterminated quote (line %d)", linect); + + if (*sp++ == '\\') { if (*sp != '\0') - { ++sp; - } - } } } - else - { + } + 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); } + fclose (cfp); +} /* * We got an error parsing the command line. */ void usage() - { +{ fprintf(stderr, "\ -Usage: %s [-e] [-v] [-t timeout] [-r report-file] {-f chat-file | chat-script}\n", - program_name); +Usage: %s [-e] [-v] [-t timeout] [-r report-file] [-T phone-number]\n\ + [-U phone-number2] {-f chat-file | chat-script}\n", program_name); exit(1); - } +} -char line[256]; -char *p; +char line[1024]; -void logf (str) -const char *str; +/* + * Send a message to syslog and/or stderr. + */ +void logf __V((const char *fmt, ...)) { - int l = strlen(line); + va_list args; - if (l + strlen(str) >= sizeof(line)) { - syslog(LOG_INFO, "%s", line); - l = 0; - } - strcpy(line + l, str); - - if (str[strlen(str)-1] == '\n') { - syslog (LOG_INFO, "%s", line); - line[0] = 0; - } -} +#if __STDC__ + va_start(args, fmt); +#else + char *fmt; + va_start(args); + fmt = va_arg(args, char *); +#endif -void logflush() - { - if (line[0] != 0) - { + vfmtmsg(line, sizeof(line), fmt, args); + if (to_log) syslog(LOG_INFO, "%s", line); - line[0] = 0; - } - } - -/* - * Terminate with an error. - */ -void die() - { - terminate(1); - } + if (to_stderr) + fprintf(stderr, "%s\n", line); +} /* * Print an error message and terminate. */ -void fatal (msg) -const char *msg; - { - syslog(LOG_ERR, "%s", msg); - terminate(2); - } +void fatal __V((int code, const char *fmt, ...)) +{ + va_list args; -/* - * Print an error message along with the system error message and - * terminate. - */ +#if __STDC__ + va_start(args, fmt); +#else + int code; + char *fmt; + va_start(args); + code = va_arg(args, int); + fmt = va_arg(args, char *); +#endif -void sysfatal (msg) -const char *msg; - { - syslog(LOG_ERR, "%s: %m", msg); - terminate(2); - } + vfmtmsg(line, sizeof(line), fmt, args); + if (to_log) + syslog(LOG_ERR, "%s", line); + if (to_stderr) + fprintf(stderr, "%s\n", line); + terminate(code); +} int alarmed = 0; SIGTYPE sigalrm(signo) int signo; - { +{ int flags; alarm(1); alarmed = 1; /* Reset alarm to avoid race window */ signal(SIGALRM, sigalrm); /* that can cause hanging in read() */ - logflush(); if ((flags = fcntl(0, F_GETFL, 0)) == -1) - { - sysfatal("Can't get file mode flags on stdin"); - } - else - { - if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1) - { - sysfatal("Can't set file mode flags on stdin"); - } - } + 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) - { - syslog(LOG_INFO, "alarm"); - } - } + logf("alarm"); +} void unalarm() - { +{ int flags; if ((flags = fcntl(0, F_GETFL, 0)) == -1) - { - sysfatal("Can't get file mode flags on stdin"); - } - else - { - if (fcntl(0, F_SETFL, flags & ~O_NONBLOCK) == -1) - { - sysfatal("Can't set file mode flags on stdin"); - } - } - } + 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"); +} SIGTYPE sigint(signo) int signo; - { - fatal("SIGINT"); - } +{ + fatal(2, "SIGINT"); +} SIGTYPE sigterm(signo) int signo; - { - fatal("SIGTERM"); - } +{ + fatal(2, "SIGTERM"); +} SIGTYPE sighup(signo) int signo; - { - fatal("SIGHUP"); - } +{ + fatal(2, "SIGHUP"); +} void init() - { +{ signal(SIGINT, sigint); signal(SIGTERM, sigterm); signal(SIGHUP, sighup); @@ -604,17 +571,15 @@ void init() signal(SIGALRM, sigalrm); alarm(0); alarmed = 0; - } +} void set_tty_parameters() - { +{ #if defined(get_term_param) term_parms t; if (get_term_param (&t) < 0) - { - sysfatal("Can't get terminal parameters"); - } + fatal(2, "Can't get terminal parameters: %m"); saved_tty_parameters = t; have_tty_parameters = 1; @@ -628,25 +593,22 @@ void set_tty_parameters() t.c_cc[VTIME] = 0; if (set_term_param (&t) < 0) - { - sysfatal("Can't set terminal parameters"); - } + fatal(2, "Can't set terminal parameters: %m"); #endif - } +} void break_sequence() - { +{ #ifdef TERMIOS tcsendbreak (0, 0); #endif - } +} void terminate(status) int status; - { +{ echo_stderr(-1); - if (report_file != (char *) 0 && report_fp != (FILE *) NULL) - { + if (report_file != (char *) 0 && report_fp != (FILE *) NULL) { /* * Allow the last of the report string to be gathered before we terminate. */ @@ -667,91 +629,73 @@ int status; 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 (have_tty_parameters) { if (set_term_param (&saved_tty_parameters) < 0) - { - syslog(LOG_ERR, "Can't restore terminal parameters: %m"); - exit(1); - } - } + fatal(2, "Can't restore terminal parameters: %m"); + } #endif exit(status); - } +} /* * 'Clean up' this string. */ char *clean(s, sending) register char *s; -int sending; - { +int sending; /* set to 1 when sending (putting) this string. */ +{ char temp[STR_LEN], cur_chr; - register char *s1; + register char *s1, *phchar; int add_return = sending; #define isoctal(chr) (((chr) >= '0') && ((chr) <= '7')) s1 = temp; - while (*s) - { + while (*s) { cur_chr = *s++; - if (cur_chr == '^') - { + if (cur_chr == '^') { cur_chr = *s++; - if (cur_chr == '\0') - { + if (cur_chr == '\0') { *s1++ = '^'; break; - } + } cur_chr &= 0x1F; - if (cur_chr != 0) - { + if (cur_chr != 0) { *s1++ = cur_chr; - } - continue; } + continue; + } - if (cur_chr != '\\') - { + if (cur_chr != '\\') { *s1++ = cur_chr; continue; - } + } cur_chr = *s++; - if (cur_chr == '\0') - { - if (sending) - { + if (cur_chr == '\0') { + if (sending) { *s1++ = '\\'; *s1++ = '\\'; - } - break; } + break; + } - switch (cur_chr) - { + switch (cur_chr) { case 'b': *s1++ = '\b'; break; case 'c': if (sending && *s == '\0') - { add_return = 0; - } else - { *s1++ = cur_chr; - } break; case '\\': @@ -759,13 +703,33 @@ int sending; 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; @@ -787,122 +751,103 @@ int sending; break; case 'N': - if (sending) - { + if (sending) { *s1++ = '\\'; *s1++ = '\0'; - } + } else - { *s1++ = 'N'; - } break; default: - if (isoctal (cur_chr)) - { + if (isoctal (cur_chr)) { cur_chr &= 0x07; - if (isoctal (*s)) - { + if (isoctal (*s)) { cur_chr <<= 3; cur_chr |= *s++ - '0'; - if (isoctal (*s)) - { + if (isoctal (*s)) { cur_chr <<= 3; cur_chr |= *s++ - '0'; - } } + } - if (cur_chr != 0 || sending) - { + if (cur_chr != 0 || sending) { if (sending && (cur_chr == '\\' || cur_chr == 0)) - { *s1++ = '\\'; - } *s1++ = cur_chr; - } - break; } + 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 (s, term) -char *s, *term; - { + char *s, *term; +{ static char *str = ""; 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) - { + while (*str) { + if (escape_flag) { escape_flag = 0; ++str; continue; - } + } - if (*str == '\\') - { + if (*str == '\\') { ++str; escape_flag = 1; continue; - } + } + /* * If this is not in the termination string, continue. */ - if (strchr (term, *str) == (char *) 0) - { + 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); } + return (result); +} /* * Process the expect string @@ -910,101 +855,87 @@ char *s, *term; void chat_expect (s) char *s; - { +{ char *expect; char *reply; - if (strcmp(s, "HANGUP") == 0) - { + if (strcmp(s, "HANGUP") == 0) { ++hup_next; return; - } + } - if (strcmp(s, "ABORT") == 0) - { + if (strcmp(s, "ABORT") == 0) { ++abort_next; return; - } + } - if (strcmp(s, "CLR_ABORT") == 0) - { + if (strcmp(s, "CLR_ABORT") == 0) { ++clear_abort_next; return; - } + } - if (strcmp(s, "REPORT") == 0) - { + if (strcmp(s, "REPORT") == 0) { ++report_next; return; - } + } - if (strcmp(s, "CLR_REPORT") == 0) - { + if (strcmp(s, "CLR_REPORT") == 0) { ++clear_report_next; return; - } + } - if (strcmp(s, "TIMEOUT") == 0) - { + if (strcmp(s, "TIMEOUT") == 0) { ++timeout_next; return; - } + } - if (strcmp(s, "ECHO") == 0) - { + if (strcmp(s, "ECHO") == 0) { ++echo_next; return; - } - if (strcmp(s, "SAY") == 0) - { + } + + if (strcmp(s, "SAY") == 0) { ++say_next; return; - } + } + /* * Fetch the expect and reply string. */ - for (;;) - { + 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) - { - syslog(LOG_INFO, "Failed (%s)", fail_reason); - } + logf("Failed (%s)", fail_reason); else - { - syslog(LOG_INFO, "Failed"); - } + logf("Failed"); terminate(exit_code); - } +} /* * Translate the input character to the appropriate string for printing @@ -1013,7 +944,7 @@ char *s; char *character(c) int c; - { +{ static char string[10]; char *meta; @@ -1021,91 +952,66 @@ int c; c &= 0x7F; if (c < 32) - { sprintf(string, "%s^%c", meta, (int)c + '@'); - } + else if (c == 127) + sprintf(string, "%s^?", meta); else - { - if (c == 127) - { - sprintf(string, "%s^?", meta); - } - else - { - sprintf(string, "%s%c", meta, c); - } - } + sprintf(string, "%s%c", meta, c); return (string); - } +} /* * process the reply string */ void chat_send (s) register char *s; - { - if (say_next) - { +{ + if (say_next) { say_next = 0; s = clean(s,0); write(2, s, strlen(s)); free(s); return; - } - if (hup_next) - { + } + + if (hup_next) { hup_next = 0; if (strcmp(s, "OFF") == 0) signal(SIGHUP, SIG_IGN); else signal(SIGHUP, sighup); return; - } - if (echo_next) - { + } + + if (echo_next) { echo_next = 0; echo = (strcmp(s, "ON") == 0); return; - } - if (abort_next) - { + } + + if (abort_next) { char *s1; abort_next = 0; if (n_aborts >= MAX_ABORTS) - { - fatal("Too many ABORT strings"); - } + fatal(2, "Too many ABORT strings"); s1 = clean(s, 0); if (strlen(s1) > strlen(s) || strlen(s1) + 1 > sizeof(fail_buffer)) - { - syslog(LOG_WARNING, "Illegal or too-long ABORT string ('%s')", s); - die(); - } + fatal(1, "Illegal or too-long ABORT string ('%v')", s); abort_string[n_aborts++] = s1; if (verbose) - { - logf("abort on ("); - - for (s1 = s; *s1; ++s1) - { - logf(character(*s1)); - } - - logf(")\n"); - } + logf("abort on (%v)", s); return; - } + } - if (clear_abort_next) - { + if (clear_abort_next) { char *s1; char *s2 = s; int i; @@ -1118,74 +1024,45 @@ register char *s; if (strlen(s1) > strlen(s) || strlen(s1) + 1 > sizeof(fail_buffer)) - { - syslog(LOG_WARNING, "Illegal or too-long CLR_ABORT string ('%s')", s); - die(); - } + 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) - { - logf("clear abort on ("); - - for (s2 = s; *s2; ++s2) - { - logf(character(*s2)); - } - - logf(")\n"); - } - } + 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) + logf("clear abort on (%v)", s); } + } free(s1); - if (pack) pack_array(abort_string,old_max); + if (pack) + pack_array(abort_string,old_max); return; - } + } - if (report_next) - { + if (report_next) { char *s1; report_next = 0; if (n_reports >= MAX_REPORTS) - { - fatal("Too many REPORT strings"); - } + fatal(2, "Too many REPORT strings"); s1 = clean(s, 0); if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1) - { - syslog(LOG_WARNING, "Illegal or too-long REPORT string ('%s')", s); - die(); - } + fatal(1, "Illegal or too-long REPORT string ('%v')", s); report_string[n_reports++] = s1; if (verbose) - { - logf("report ("); - s1 = s; - while (*s1) - { - logf(character(*s1)); - ++s1; - } - logf(")\n"); - } + logf("report (%v)", s); return; - } + } - if (clear_report_next) - { + if (clear_report_next) { char *s1; char *s2 = s; int i; @@ -1197,111 +1074,76 @@ register char *s; s1 = clean(s, 0); if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1) - { - syslog(LOG_WARNING, "Illegal or too-long REPORT string ('%s')", s); - die(); - } + 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) - { - logf("clear report ("); - - for (s2 = s; *s2; ++s2) - { - logf(character(*s2)); - } - - logf(")\n"); - } - } + 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) + logf("clear report (%v)", s); } + } free(s1); - if (pack) pack_array(report_string,old_max); + if (pack) + pack_array(report_string,old_max); return; - } + } - if (timeout_next) - { + if (timeout_next) { timeout_next = 0; timeout = atoi(s); if (timeout <= 0) - { timeout = DEFAULT_CHAT_TIMEOUT; - } if (verbose) - { - syslog(LOG_INFO, "timeout set to %d seconds", timeout); - } + logf("timeout set to %d seconds", timeout); + return; - } + } if (strcmp(s, "EOT") == 0) - { s = "^D\\c"; - } - else - { - if (strcmp(s, "BREAK") == 0) - { - s = "\\K\\c"; - } - } + else if (strcmp(s, "BREAK") == 0) + s = "\\K\\c"; if (!put_string(s)) - { - syslog(LOG_INFO, "Failed"); - terminate(1); - } - } + fatal(1, "Failed"); +} int get_char() - { +{ int status; char c; status = read(0, &c, 1); - switch (status) - { + switch (status) { case 1: return ((int)c & 0x7F); default: - syslog(LOG_WARNING, "warning: read() on stdin returned %d", - status); + logf("warning: read() on stdin returned %d", status); case -1: if ((status = fcntl(0, F_GETFL, 0)) == -1) - { - sysfatal("Can't get file mode flags on stdin"); - } - else - { - if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1) - { - sysfatal("Can't set file mode flags on stdin"); - } - } + 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(c) int c; - { +{ int status; char ch = c; @@ -1309,103 +1151,68 @@ int c; status = write(1, &ch, 1); - switch (status) - { + switch (status) { case 1: return (0); default: - syslog(LOG_WARNING, "warning: write() on stdout returned %d", - status); + logf("warning: write() on stdout returned %d", status); case -1: if ((status = fcntl(0, F_GETFL, 0)) == -1) - { - sysfatal("Can't get file mode flags on stdin"); - } - else - { - if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1) - { - sysfatal("Can't set file mode flags on stdin"); - } - } + 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 (c) int c; - { - if (alarmed || put_char(c) < 0) - { - extern int errno; - +{ + if (alarmed || put_char(c) < 0) { alarm(0); alarmed = 0; - if (verbose) - { + if (verbose) { if (errno == EINTR || errno == EWOULDBLOCK) - { - syslog(LOG_INFO, " -- write timed out"); - } + logf(" -- write timed out"); else - { - syslog(LOG_INFO, " -- write failed: %m"); - } - } - return (0); + logf(" -- write failed: %m"); } - return (1); + return (0); } + return (1); +} int put_string (s) register char *s; - { +{ quiet = 0; s = clean(s, 1); - if (verbose) - { - logf("send ("); - + if (verbose) { if (quiet) - { - logf("??????"); - } + logf("send (??????)"); else - { - register char *s1 = s; - - for (s1 = s; *s1; ++s1) - { - logf(character(*s1)); - } - } - - logf(")\n"); - } + logf("send (%v)", s); + } alarm(timeout); alarmed = 0; - while (*s) - { + while (*s) { register char c = *s++; - if (c != '\\') - { + if (c != '\\') { if (!write_char (c)) - { return 0; - } continue; - } + } c = *s++; - switch (c) - { + switch (c) { case 'd': sleep(1); break; @@ -1422,13 +1229,13 @@ register char *s; if (!write_char (c)) return 0; break; - } } + } alarm(0); alarmed = 0; return (1); - } +} /* * Echo a character to stderr. @@ -1437,39 +1244,39 @@ register char *s; */ void echo_stderr(n) int n; - { - static int need_lf; - char *s; +{ + static int need_lf; + char *s; - switch (n) - { - case '\r': /* ignore '\r' */ - break; - case -1: - if (need_lf == 0) - break; - /* fall through */ - case '\n': - write(2, "\n", 1); - need_lf = 0; - break; - default: - s = character(n); - write(2, s, strlen(s)); - need_lf = 1; + switch (n) { + case '\r': /* ignore '\r' */ + break; + case -1: + if (need_lf == 0) break; - } + /* fall through */ + case '\n': + write(2, "\n", 1); + need_lf = 0; + break; + default: + s = character(n); + write(2, s, strlen(s)); + need_lf = 1; + break; } +} /* * 'Wait for' this string to appear on this file descriptor. */ int get_string(string) register char *string; - { +{ char temp[STR_LEN]; int c, printed = 0, len, minlen; register char *s = temp, *end = s + STR_LEN; + char *logged = temp; fail_reason = (char *)0; string = clean(string, 0); @@ -1477,74 +1284,55 @@ register char *string; minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1; if (verbose) - { - register char *s1; - - logf("expect ("); + logf("expect (%v)", string); - for (s1 = string; *s1; ++s1) - { - logf(character(*s1)); - } - - logf(")\n"); - } - - if (len > STR_LEN) - { - syslog(LOG_INFO, "expect string is too long"); + if (len > STR_LEN) { + logf("expect string is too long"); exit_code = 1; return 0; - } + } - if (len == 0) - { + if (len == 0) { if (verbose) - { - syslog(LOG_INFO, "got it"); - } - + logf("got it"); return (1); - } + } alarm(timeout); alarmed = 0; - while ( ! alarmed && (c = get_char()) >= 0) - { + while ( ! alarmed && (c = get_char()) >= 0) { int n, abort_len, report_len; if (echo) - { echo_stderr(c); - } - if (verbose) - { - if (c == '\n') - { - logf("\n"); - } + if (verbose && c == '\n') { + if (s == logged) + logf(""); /* blank line */ else - { - logf(character(c)); - } - } - - if (Verbose) { - if (c == '\n') fputc( '\n', stderr ); - else if (c != '\r') fprintf( stderr, "%s", character(c) ); + logf("%0.*v", s - logged, logged); + logged = s + 1; } *s++ = c; - if (!report_gathering) - { - for (n = 0; n < n_reports; ++n) - { + if (verbose && s >= logged + 80) { + 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) - { + 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); @@ -1554,87 +1342,80 @@ register char *string; report_string[n] = (char *) NULL; report_gathering = 1; break; - } - } + } } - else - { - if (!iscntrl (c)) - { + } + else { + if (!iscntrl (c)) { int rep_len = strlen (report_buffer); report_buffer[rep_len] = c; report_buffer[rep_len + 1] = '\0'; - } - else - { + } + else { report_gathering = 0; fprintf (report_fp, "chat: %s\n", report_buffer); - } } + } if (s - temp >= len && c == string[len - 1] && - strncmp(s - len, string, len) == 0) - { - if (verbose) - { + strncmp(s - len, string, len) == 0) { + if (verbose) { + if (s > logged) + logf("%0.*v", s - logged, logged); logf(" -- got it\n"); - } + } alarm(0); alarmed = 0; return (1); - } + } - for (n = 0; n < n_aborts; ++n) - { + 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) - { - logf(" -- failed\n"); - } - + strncmp(s - abort_len, abort_string[n], abort_len) == 0) { + if (verbose) { + if (s > logged) + logf("%0.*v", s - logged, logged); + logf(" -- failed"); + } + alarm(0); alarmed = 0; exit_code = n + 4; strcpy(fail_reason = fail_buffer, abort_string[n]); return (0); - } } + } - if (s >= end) - { - strncpy (temp, s - minlen, minlen); - s = temp + minlen; + if (s >= end) { + if (logged < s - minlen) { + logf("%0.*v", s - logged, logged); + logged = s; } + s -= minlen; + memmove(temp, s, minlen); + logged = temp + (logged - s); + s = temp + minlen; + } if (alarmed && verbose) - { - syslog(LOG_WARNING, "warning: alarm synchronization problem"); - } - } + logf("warning: alarm synchronization problem"); + } alarm(0); - if (verbose && printed) - { + if (verbose && printed) { if (alarmed) - { - logf(" -- read timed out\n"); - } + logf(" -- read timed out"); else - { - logflush(); - syslog(LOG_INFO, " -- read failed: %m"); - } - } + logf(" -- read failed: %m"); + } exit_code = 3; alarmed = 0; return (0); - } +} #ifdef NO_USLEEP #include @@ -1651,16 +1432,15 @@ int usleep( usec ) /* returns 0 if ok, else -1 */ long usec; /* delay in microseconds */ { - static struct /* `timeval' */ - { + static struct { /* `timeval' */ long tv_sec; /* seconds */ long tv_usec; /* microsecs */ - } delay; /* _select() timeout */ + } delay; /* _select() timeout */ delay.tv_sec = usec / 1000000L; delay.tv_usec = usec % 1000000L; - return select( 0, (long *)0, (long *)0, (long *)0, &delay ); + return select(0, (long *)0, (long *)0, (long *)0, &delay); } #endif @@ -1682,3 +1462,208 @@ pack_array (array, end) } } } + +/* + * 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(buf, buflen, fmt, args) + 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]; + time_t t; + 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 = 0; + 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; +} -- 2.39.2