From 3843e96252a823b4fdfc89c61d00342bf011ad88 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 25 Nov 1999 07:30:46 +0000 Subject: Stuf --- logger.c | 186 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) create mode 100644 logger.c (limited to 'logger.c') diff --git a/logger.c b/logger.c new file mode 100644 index 000000000..0683838cc --- /dev/null +++ b/logger.c @@ -0,0 +1,186 @@ +/* + * Mini logger implementation for busybox + * + * Copyright (C) 1999 by Lineo, inc. + * Written by Erik Andersen , + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "internal.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if !defined BB_SYSLOGD + +#define SYSLOG_NAMES +#include + +#else +/* We have to do this since the header file defines static + * structues. Argh.... bad libc, bad, bad... + */ +#include +typedef struct _code { + char *c_name; + int c_val; +} CODE; +extern CODE prioritynames[]; +extern CODE facilitynames[]; +#endif + +static const char logger_usage[] = + "logger [OPTION]... [MESSAGE]\n\n" + "Write MESSAGE to the system log. If MESSAGE is '-', log stdin.\n\n" + "Options:\n" + "\t-s\tLog to stderr as well as the system log.\n" + "\t-p\tEnter the message with the specified priority.\n" + "\t\tThis may be numerical or a ``facility.level'' pair.\n"; + + +/* Decode a symbolic name to a numeric value + * this function is based on code + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + */ +static int +decode(char* name, CODE* codetab) +{ + CODE *c; + + if (isdigit(*name)) + return (atoi(name)); + for (c = codetab; c->c_name; c++) { + if (!strcasecmp(name, c->c_name)) { + return (c->c_val); + } + } + + return (-1); +} + +/* Decode a symbolic name to a numeric value + * this function is based on code + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + */ +static int +pencode(char* s) +{ + char *save; + int lev, fac=LOG_USER; + + for (save = s; *s && *s != '.'; ++s); + if (*s) { + *s = '\0'; + fac = decode(save, facilitynames); + if (fac < 0) { + fprintf(stderr, "unknown facility name: %s\n", save); + exit( FALSE); + } + *s++ = '.'; + } + else { + s = save; + } + lev = decode(s, prioritynames); + if (lev < 0) { + fprintf(stderr, "unknown priority name: %s\n", save); + exit( FALSE); + } + return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); +} + + +extern int logger_main(int argc, char **argv) +{ + struct sockaddr_un sunx; + int fd, pri = LOG_USER|LOG_NOTICE; + int toStdErrFlag=FALSE; + char *message, buf[1024]; + time_t now; + size_t addrLength; + + /* Parse any options */ + while (--argc > 0 && **(++argv) == '-') { + while (*(++(*argv))) { + switch (**argv) { + case 's': + toStdErrFlag = TRUE; + break; + case 'p': + if (--argc == 0) { + usage(logger_usage); + } + pri = pencode(*(++argv)); + if (--argc == 0) { + usage(logger_usage); + } + ++argv; + break; + default: + usage(logger_usage); + } + } + } + + if (argc>=1) + if (**argv=='-') { + /* read from stdin */ + } else { + message=*argv; + } + else { + fprintf(stderr, "No message\n"); + exit( FALSE); + } + + memset(&sunx, 0, sizeof(sunx)); + sunx.sun_family = AF_UNIX; /* Unix domain socket */ + strncpy(sunx.sun_path, _PATH_LOG, sizeof(sunx.sun_path)); + if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0 ) { + perror("Couldn't obtain descriptor for socket " _PATH_LOG); + exit( FALSE); + } + + addrLength = sizeof(sunx.sun_family) + strlen(sunx.sun_path); + + if (connect(fd, (struct sockaddr *) &sunx, addrLength)) { + perror("Could not connect to socket " _PATH_LOG); + exit( FALSE); + } + + time(&now); + snprintf (buf, sizeof(buf), "<%d>%.15s %s", pri, ctime(&now)+4, message); + + if (toStdErrFlag==TRUE) + fprintf(stderr, "%s\n", buf); + + write( fd, buf, sizeof(buf)); + + close(fd); + exit( TRUE); +} + -- cgit v1.2.3