diff options
Diffstat (limited to 'sbin/dhclient/errwarn.c')
| -rw-r--r-- | sbin/dhclient/errwarn.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/sbin/dhclient/errwarn.c b/sbin/dhclient/errwarn.c new file mode 100644 index 00000000000..7916ae04e0e --- /dev/null +++ b/sbin/dhclient/errwarn.c @@ -0,0 +1,236 @@ +/* errwarn.c + + Errors and warnings... */ + +/* + * Copyright (c) 1996 The Internet Software Consortium. + * All Rights Reserved. + * Copyright (c) 1995 RadioMail Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of RadioMail Corporation, the Internet Software + * Consortium nor the names of its contributors may be used to endorse + * or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION, THE INTERNET + * SOFTWARE CONSORTIUM AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL RADIOMAIL CORPORATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This software was written for RadioMail Corporation by Ted Lemon + * under a contract with Vixie Enterprises. Further modifications have + * been made for the Internet Software Consortium under a contract + * with Vixie Laboratories. + */ + +#include "dhcpd.h" +#include <errno.h> + +static void do_percentm PROTO ((char *obuf, size_t size, char *ibuf)); + +static char mbuf [1024]; +static char fbuf [1024]; + +int warnings_occurred; + +/* Log an error message, then exit... */ + +void error (char * fmt, ...) + KandR (char *fmt;) + va_dcl +{ + va_list list; + + do_percentm (fbuf, sizeof(fbuf), fmt); + + va_start (list, fmt); + vsnprintf (mbuf, sizeof mbuf, fbuf, list); + va_end (list); + +#ifndef DEBUG + syslog (log_priority | LOG_ERR, "%s", mbuf); +#endif + + /* Also log it to stderr? */ + if (log_perror) { + write (2, mbuf, strlen (mbuf)); + write (2, "\n", 1); + } + + syslog (LOG_CRIT, "exiting."); + if (log_perror) { + fprintf (stderr, "exiting.\n"); + fflush (stderr); + } + cleanup (); + exit (1); +} + +/* Log a warning message... */ + +int warn (char * fmt, ...) + KandR (char *fmt;) + va_dcl +{ + va_list list; + + do_percentm (fbuf, sizeof(fbuf), fmt); + + va_start (list, fmt); + vsnprintf (mbuf, sizeof mbuf, fbuf, list); + va_end (list); + +#ifndef DEBUG + syslog (log_priority | LOG_ERR, "%s", mbuf); +#endif + + if (log_perror) { + write (2, mbuf, strlen (mbuf)); + write (2, "\n", 1); + } + + return 0; +} + +/* Log a note... */ + +int note (char * fmt, ...) + KandR (char *fmt;) + va_dcl +{ + va_list list; + + do_percentm (fbuf, sizeof(fbuf), fmt); + + va_start (list, fmt); + vsnprintf (mbuf, sizeof mbuf, fbuf, list); + va_end (list); + +#ifndef DEBUG + syslog (log_priority | LOG_INFO, "%s", mbuf); +#endif + + if (log_perror) { + write (2, mbuf, strlen (mbuf)); + write (2, "\n", 1); + } + + return 0; +} + +/* Log a debug message... */ + +int debug (char * fmt, ...) + KandR (char *fmt;) + va_dcl +{ + va_list list; + + do_percentm (fbuf, sizeof(fbuf), fmt); + + va_start (list, fmt); + vsnprintf (mbuf, sizeof mbuf, fbuf, list); + va_end (list); + +#ifndef DEBUG + syslog (log_priority | LOG_DEBUG, "%s", mbuf); +#endif + + if (log_perror) { + write (2, mbuf, strlen (mbuf)); + write (2, "\n", 1); + } + + return 0; +} + +/* Find %m in the input string and substitute an error message string. */ + +static void do_percentm (obuf, size, ibuf) + char *obuf; + size_t size; + char *ibuf; +{ + char ch; + char *s = ibuf; + char *t = obuf; + size_t prlen; + size_t fmt_left; + int saved_errno = errno; + + /* + * We wouldn't need this mess if printf handled %m, or if + * strerror() had been invented before syslog(). + */ + for (fmt_left = size; (ch = *s); ++s) { + if (ch == '%' && s[1] == 'm') { + ++s; + prlen = snprintf(t, fmt_left, "%s", + strerror(saved_errno)); + if (prlen >= fmt_left) + prlen = fmt_left - 1; + t += prlen; + fmt_left -= prlen; + } else { + if (fmt_left > 1) { + *t++ = ch; + fmt_left--; + } + } + } + *t = '\0'; +} + + +int parse_warn (char * fmt, ...) + KandR (char *fmt;) + va_dcl +{ + va_list list; + static char spaces [] = " "; + + do_percentm (mbuf, sizeof(mbuf), fmt); + snprintf (fbuf, sizeof fbuf, "%s line %d: %s", + tlname, lexline, mbuf); + VA_start (list, fmt); + vsnprintf (mbuf, sizeof mbuf, fbuf, list); + va_end (list); + +#ifndef DEBUG + syslog (log_priority | LOG_ERR, "%s", mbuf); + syslog (log_priority | LOG_ERR, "%s", token_line); + if (lexline < 81) + syslog (log_priority | LOG_ERR, + "%s^", &spaces [sizeof spaces - lexchar]); +#endif + + if (log_perror) { + write (2, mbuf, strlen (mbuf)); + write (2, "\n", 1); + write (2, token_line, strlen (token_line)); + write (2, "\n", 1); + write (2, spaces, lexchar - 1); + write (2, "^\n", 2); + } + + warnings_occurred = 1; + + return 0; +} |