summaryrefslogtreecommitdiffstats
path: root/c/src/libnetworking/pppd/chat.c
diff options
context:
space:
mode:
authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-30 22:12:50 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-30 22:12:50 +0000
commitd0950adfd65d0510424b43c31f19d2f1d8d277a4 (patch)
tree6d0c8ee17d77495c851099f1ffa751f84b857857 /c/src/libnetworking/pppd/chat.c
parent48bfd9925727e46aada26c40c967a5ad57d98919 (diff)
downloadrtems-d0950adfd65d0510424b43c31f19d2f1d8d277a4.tar.bz2
Added port of ppp-2.3.5 from Tomasz Domin <dot@comarch.pl> of ComArch SA.
Tomasz only tested this on the mpc823. The official site for the original source for this PPP implementation is: ftp://cs.anu.edu.au/pub/software/ppp NOTE: As of 11/30/1999, the current version of this source is 2.3.10.
Diffstat (limited to 'c/src/libnetworking/pppd/chat.c')
-rw-r--r--c/src/libnetworking/pppd/chat.c1004
1 files changed, 1004 insertions, 0 deletions
diff --git a/c/src/libnetworking/pppd/chat.c b/c/src/libnetworking/pppd/chat.c
new file mode 100644
index 0000000000..ad4c0c932e
--- /dev/null
+++ b/c/src/libnetworking/pppd/chat.c
@@ -0,0 +1,1004 @@
+/*
+ * 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
+ *
+ *
+ */
+
+#ifndef lint
+/* static char rcsid[] = ""; */
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <time.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <syslog.h>
+
+#undef TERMIOS
+#define TERMIOS
+
+
+#include <termios.h>
+
+#define STR_LEN 1024
+char temp2[STR_LEN];
+
+#ifndef SIGTYPE
+#define SIGTYPE void
+#endif
+
+#undef __P
+#undef __V
+
+#ifdef __STDC__
+#include <stdarg.h>
+#define __V(x) x
+#define __P(x) x
+#else
+#include <varargs.h>
+#define __V(x) (va_alist) va_dcl
+#define __P(x) ()
+#define const
+#endif
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+
+
+/*************** 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=='-'\
+ &&!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)
+#define OPTONLYARG(c,v) (_O&2&&**v?(_O=1,--c,*v++):(char*)0)
+#define ARG(c,v) (c?(--c,*v++):(char*)0)
+
+#if 0
+static int _O = 0; /* Internal state */
+#endif
+/*************** Micro getopt() *********************************************/
+
+char *program_name;
+
+#define MAX_ABORTS 5
+#define MAX_REPORTS 5
+#define DEFAULT_CHAT_TIMEOUT 45
+#define fcntl(a, b,c ) 0
+#define MAX_TIMEOUTS 10
+
+int echo = 0;
+int verbose = 0;
+int to_log = 1;
+int to_stderr = 0;
+int Verbose = 0;
+int quiet = 0;
+int report = 0;
+int exit_code = 0;
+static int speed=0;
+char *report_file = (char *) 0;
+char *chat_file = (char *) 0;
+char *phone_num = (char *) 0;
+char *phone_num2 = (char *) 0;
+int chat_timeout = DEFAULT_CHAT_TIMEOUT;
+static int timeout = DEFAULT_CHAT_TIMEOUT;
+int have_tty_parameters = 0;
+
+#ifdef TERMIOS
+#define term_parms struct termios
+#define get_term_param(param) tcgetattr(modem_fd, param)
+#define set_term_param(param) tcsetattr(modem_fd, TCSANOW, param)
+struct termios saved_tty_parameters;
+#endif
+
+char *abort_string[MAX_ABORTS]={"BUSY","NO DIALTONE","NO CARRIER","NO ASWER","RINGING\r\n\r\nRINGING"};
+char *fail_reason = (char *)0,
+ fail_buffer[50];
+int n_aborts = MAX_ABORTS, abort_next = 0, timeout_next = 0, echo_next = 0;
+int clear_abort_next = 0;
+
+char *report_string[MAX_REPORTS] ;
+char report_buffer[50] ;
+int n_reports = 0, report_next = 0, report_gathering = 0 ;
+int clear_report_next = 0;
+
+int say_next = 0, hup_next = 0;
+
+void *dup_mem __P((void *b, size_t c));
+void *copy_of __P((char *s));
+/*
+SIGTYPE sigalrm __P((int signo));
+SIGTYPE sigint __P((int signo));
+SIGTYPE sigterm __P((int signo));
+SIGTYPE sighup __P((int signo));
+*/
+void unalarm __P((void));
+void init __P((void));
+void set_tty_parameters __P((void));
+void echo_stderr __P((int));
+void break_sequence __P((void));
+void terminate __P((int status));
+void do_file __P((char *chat_file));
+int get_string __P((register char *string));
+int put_string __P((register char *s));
+int write_char __P((int c));
+int put_char __P((int c));
+int get_char __P((void));
+void chat_send __P((register char *s));
+char *character __P((int c));
+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 pack_array __P((char **array, int end));
+char *expect_strtok __P((char *, char *));
+int vfmtmsg __P((char *, int, const char *, va_list)); /* vsprintf++ */
+
+#if 0
+int usleep( long usec ); /* returns 0 if ok, else -1 */
+#endif
+
+extern int input_fd,output_fd;
+
+int main __P((int, char *[]));
+
+void *dup_mem(b, c)
+void *b;
+size_t c;
+{
+ void *ans = malloc (c);
+ if (!ans)
+ return NULL;
+
+ memcpy (ans, b, c);
+ return ans;
+}
+
+void *copy_of (s)
+char *s;
+{
+ return dup_mem (s, strlen (s) + 1);
+}
+
+/*
+ * 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.
+ */
+char *getnextcommand(char **string)
+{
+ char *buf=*string,*res;
+ res=strchr(buf,'@');
+ if (res==NULL)
+ return NULL;
+ *res='\0';
+ *string=res+1;
+ return buf;
+}
+
+
+extern int modem_fd;
+int
+ chatmain(argv)
+ char *argv;
+{
+ char *arg;
+ int i;
+ char *t;
+ exit_code=0;
+ speed=0;
+/*
+ * Default the report file to the stderr location
+ */
+/* if (report_fp == NULL)
+ report_fp = stderr;
+*/
+ init();
+ while ( (arg = getnextcommand(&argv)) != NULL) {
+ chat_expect(arg);
+ if (exit_code>0) break;
+ t=temp2;
+
+ while(*t)
+ {
+ if (strncmp("CARRIER",t,7)==0)
+ {/* parse speed information */
+ i=0;
+ while(!isdigit(t[i]))
+ i++;
+ t=&t[i];
+ i=0;
+ while(isdigit(t[i]))
+ i++;
+ t[i]=0;
+ sscanf(t,"%d",&speed);
+ break;
+ }
+ t++;
+ }
+ if ((arg = getnextcommand(&argv)) != NULL)
+ chat_send(arg);
+ if (exit_code>0) break;
+ }
+
+ if (exit_code) return exit_code;
+ return -speed;
+}
+
+
+
+/*
+ * Print an error message and terminate.
+ */
+
+void init()
+{
+ set_tty_parameters();
+ speed=0;
+}
+
+void set_tty_parameters()
+{
+ term_parms t;
+
+ if (get_term_param (&t) < 0)
+ syslog(LOG_NOTICE,"Can't get terminal parameters:")
+ ;
+
+ 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] = 0;
+ t.c_cc[VTIME] = 1;
+ if (set_term_param (&t) < 0)
+ syslog(LOG_NOTICE,"Can't set terminal parameters:")
+ ;
+}
+
+void break_sequence()
+{
+
+/* tcsendbreak (0, 0);*/
+}
+
+/*void terminate(status)
+int status;
+{
+ echo_stderr(-1);
+
+ if (have_tty_parameters) {
+ if (set_term_param (&saved_tty_parameters) < 0)
+ fatal(2, "Can't restore terminal parameters: %m");
+ }
+}
+*/
+/*
+ * 'Clean up' this string.
+ */
+char *clean(s, sending)
+register char *s;
+int sending; /* set to 1 when sending (putting) this string. */
+{
+ char temp[STR_LEN], cur_chr;
+ register char *s1, *phchar;
+ int add_return = sending;
+#define isoctal(chr) (((chr) >= '0') && ((chr) <= '7'))
+
+ s1 = temp;
+ while (*s) {
+ 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 (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) {
+ 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 (s)
+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.
+ */
+ return ;
+}
+
+/*
+ * process the reply string
+ */
+void chat_send (s)
+register char *s;
+{
+ if (say_next) {
+ say_next = 0;
+ s = clean(s,0);
+ write(modem_fd, s, strlen(s));
+ free(s);
+ return;
+ }
+
+ if (hup_next) {
+ hup_next = 0;
+ }
+
+ if (echo_next) {
+ echo_next = 0;
+ echo = (strcmp(s, "ON") == 0);
+ return;
+ }
+
+ if (abort_next) {
+ /* char *s1; */
+
+
+ ;
+
+
+ return;
+ }
+
+
+/* if (report_next) {
+ char *s1;
+
+ report_next = 0;
+ if (n_reports >= MAX_REPORTS)
+ {
+ exit_code=2;
+ return;
+ }
+
+ s1 = clean(s, 0);
+
+ if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
+ {
+ exit_code=1;
+ return;
+ }
+
+ report_string[n_reports++] = s1;
+
+ 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)
+ {
+ exit_code=1;
+ return;
+ }
+
+ 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--;
+ }
+ }
+ free(s1);
+ if (pack)
+ pack_array(report_string,old_max);
+
+ return;
+ }
+*/
+
+ if (timeout_next) {
+ timeout=atoi(s);
+ timeout_next = 0;
+ chat_timeout = atoi(s);
+
+ if (chat_timeout <= 0)
+ chat_timeout = DEFAULT_CHAT_TIMEOUT;
+
+
+ return;
+ }
+ if (strcmp(s, "EOT") == 0)
+ s = "^D\\c";
+ else if (strcmp(s, "BREAK") == 0)
+ s = "\\K\\c";
+
+ if (!put_string(s))
+ {
+ exit_code=1;
+ return;
+ }
+}
+
+int get_char()
+{
+ int status;
+ char c;
+ int tries=MAX_TIMEOUTS;
+
+ while(tries)
+ {
+ status = read(modem_fd, &c, 1);
+ switch (status) {
+ case 1:
+ return ((int)c & 0x7F);
+ default:
+ tries--;
+ }
+ }
+ return -1;
+}
+
+int put_char(c)
+int c;
+{
+ int status;
+ char ch = c;
+
+ /* inter-character typing delay (?) */
+
+ status = write(modem_fd, &ch, 1);
+
+ switch (status) {
+ case 1:
+ return (0);
+
+ default:
+
+
+ }
+ return 0;
+}
+
+int write_char (c)
+int c;
+{
+ if (put_char(c) < 0) {
+ return (0);
+ }
+ return (1);
+}
+
+int put_string (s)
+register char *s;
+{
+
+
+ quiet = 0;
+ s = clean(s, 1);
+ while (*s) {
+ register 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);*/
+ 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(n)
+int n;
+{
+/* static int need_lf;
+ char *s;
+
+ switch (n) {
+ case '\r':
+ break;
+ case -1:
+ if (need_lf == 0)
+ break;
+
+ 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;
+{
+ int c, len, minlen;
+ register char *s = temp2, *end = s + STR_LEN;
+ char *logged = temp2;
+ struct termios tios;
+
+ tcgetattr(modem_fd, &tios);
+ tios.c_cc[VMIN] = 0;
+ tios.c_cc[VTIME] = timeout*10/MAX_TIMEOUTS;
+ tcsetattr(modem_fd, TCSANOW, &tios);
+
+ string = clean(string, 0);
+ len = strlen(string);
+ minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1;
+
+ if (len > STR_LEN) {
+ exit_code = 1;
+ return 0;
+ }
+
+ if (len == 0) {
+ return (1);
+ }
+
+
+ while ( (c = get_char()) >= 0) {
+ int n, abort_len;
+
+ *s++ = c;
+ *s=0;
+
+ if (s - temp2 >= len &&
+ c == string[len - 1] &&
+ strncmp(s - len, string, len) == 0) {
+ return (1);
+ }
+
+ for (n = 0; n < n_aborts; ++n) {
+ if (s - temp2 >= (abort_len = strlen(abort_string[n])) &&
+ strncmp(s - abort_len, abort_string[n], abort_len) == 0) {
+
+ exit_code = n + 4;
+ strcpy(fail_reason = fail_buffer, abort_string[n]);
+ return (0);
+ }
+ }
+
+ if (s >= end) {
+ if (logged < s - minlen) {
+ logged = s;
+ }
+ s -= minlen;
+ memmove(temp2, s, minlen);
+ logged = temp2 + (logged - s);
+ s = temp2 + minlen;
+ }
+ }
+ exit_code = 3;
+ return (0);
+}
+
+/*
+ * Gross kludge to handle Solaris versions >= 2.6 having usleep.
+ */
+
+/*
+ usleep -- support routine for 4.2BSD system call emulations
+ last edit: 29-Oct-1984 D A Gwyn
+ */
+
+
+#if 0
+int
+usleep( usec ) /* returns 0 if ok, else -1 */
+ long usec; /* delay in microseconds */
+{
+ rtems_status_code status;
+ rtems_interval ticks_per_second;
+ rtems_interval ticks;
+ status = rtems_clock_get(
+ RTEMS_CLOCK_GET_TICKS_PER_SECOND,
+ &ticks_per_second);
+ ticks = (usec * (ticks_per_second/1000))/1000;
+ status = rtems_task_wake_after( ticks );
+ return 0;
+}
+#endif
+
+void pack_array (array, end)
+ char **array; /* The address of the array of string pointers */
+ int end; /* The index of the next free entry before CLR_ */
+{
+ 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)