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/* $OpenBSD: log.c,v 1.47 2015/11/05 09:48:21 nicm Exp $ */ |
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/* |
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* Copyright (c) 2006 Joris Vink <joris@openbsd.org> |
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* Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <errno.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "cvs.h" |
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extern char *__progname; |
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/* |
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* cvs_log() |
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* |
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* Log the format-string message |
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* The <fmt> argument should not have a terminating newline, as this is taken |
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* care of by the logging facility. |
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*/ |
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void |
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cvs_log(u_int level, const char *fmt, ...) |
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{ |
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va_list vap; |
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va_start(vap, fmt); |
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cvs_vlog(level, fmt, vap); |
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va_end(vap); |
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} |
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/* |
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* cvs_vlog() |
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* |
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* The <fmt> argument should not have a terminating newline, as this is taken |
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* care of by the logging facility. |
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*/ |
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void |
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cvs_vlog(u_int level, const char *fmt, va_list vap) |
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{ |
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int ecp; |
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FILE *out; |
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char *cmdname; |
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if (cvs_trace != 1 && level == LP_TRACE) |
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return; |
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if (level == LP_ERRNO) |
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ecp = errno; |
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else |
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ecp = 0; |
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if (level == LP_NOTICE) |
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out = stdout; |
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else |
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out = stderr; |
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if (cvs_server_active) { |
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if (out == stdout) |
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putc('M', out); |
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else { |
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out = stdout; |
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putc('E', out); |
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} |
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putc(' ', out); |
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} |
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cmdname = (cmdp != NULL) ? cmdp->cmd_name : __progname; |
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/* The cvs program appends the command name to the program name */ |
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if (level == LP_TRACE) { |
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if (cvs_server_active) |
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putc('S', out); |
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else |
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putc('C', out); |
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(void)fputs("-> ", out); |
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} else if (level != LP_RCS) { |
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(void)fputs(__progname, out); |
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putc(' ', out); |
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if (level == LP_ABORT) |
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(void)fprintf(out, |
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"[%s aborted]", cmdname); |
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else |
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(void)fputs(cmdname, out); |
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(void)fputs(": ", out); |
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} |
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(void)vfprintf(out, fmt, vap); |
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if (level == LP_ERRNO) { |
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(void)fprintf(out, ": %s\n", strerror(ecp)); |
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/* preserve it just in case we changed it? */ |
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errno = ecp; |
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} else |
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fputc('\n', out); |
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} |
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/* |
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* cvs_printf() |
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* |
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* Wrapper function around printf() that prepends a 'M' command when |
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* the program is acting as server. |
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*/ |
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int |
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cvs_printf(const char *fmt, ...) |
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{ |
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static int send_m = 1; |
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int ret; |
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char *nstr, *dp, *sp; |
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va_list vap; |
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va_start(vap, fmt); |
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ret = vasprintf(&nstr, fmt, vap); |
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if (ret == -1) |
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fatal("cvs_printf: could not allocate memory"); |
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for (dp = nstr; *dp != '\0';) { |
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sp = strchr(dp, '\n'); |
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if (sp == NULL) |
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for (sp = dp; *sp != '\0'; sp++) |
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; |
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if (cvs_server_active && send_m) { |
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send_m = 0; |
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putc('M', stdout); |
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putc(' ', stdout); |
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} |
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if (dp != nstr && dp != sp && |
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!strncmp(dp, LOG_REVSEP, sp - dp)) |
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putc('>', stdout); |
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fwrite(dp, sizeof(char), (size_t)(sp - dp), stdout); |
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if (*sp != '\n') |
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break; |
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putc('\n', stdout); |
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send_m = 1; |
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dp = sp + 1; |
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} |
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free(nstr); |
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va_end(vap); |
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return (ret); |
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} |