139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
/*
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Copyright 1988, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from The Open Group.
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*/
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/*
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* xdm - display manager daemon
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* Author: Keith Packard, MIT X Consortium
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*
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* error.c
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*
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* Log display manager errors to a file as
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* we generally do not have a terminal to talk to
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include "dm.h"
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#include "dm_error.h"
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/* This function does the actual log message writes. */
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static inline void
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LogVWrite(const char *fmt, va_list args)
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{
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char buf[1024];
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int len;
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len = vsnprintf (buf, sizeof(buf), fmt, args);
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if (len >= sizeof(buf)) {
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len = sizeof(buf) - 1;
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}
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write(STDERR_FILENO, buf, len);
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}
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#define LogVarArgsWrite(fmt) \
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do { \
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va_list args; \
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va_start(args, fmt); \
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LogVWrite(fmt, args); \
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va_end(args); \
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} while(0)
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#define LogHeader(type) \
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LogAppend("xdm %s (pid %ld): ", type, (long)getpid())
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/* Append more text to the log without a new header, right after
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having called LogInfo or LogError */
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void
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LogAppend(const char * fmt, ...)
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{
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LogVarArgsWrite(fmt);
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}
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void
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LogInfo(const char * fmt, ...)
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{
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LogHeader("info");
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LogVarArgsWrite(fmt);
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}
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void
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LogError (const char * fmt, ...)
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{
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LogHeader("error");
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LogVarArgsWrite(fmt);
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}
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void
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LogPanic (const char * fmt, ...)
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{
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LogHeader("panic");
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LogVarArgsWrite(fmt);
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_exit (1);
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}
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void
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LogOutOfMem (const char * fmt, ...)
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{
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fprintf (stderr, "xdm: out of memory in routine ");
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{
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va_list args;
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va_start(args, fmt);
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vfprintf (stderr, fmt, args);
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va_end(args);
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}
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fflush (stderr);
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}
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void
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Debug (const char * fmt, ...)
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{
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char buf[1024];
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if (debugLevel > 0)
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{
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LogVarArgsWrite(fmt);
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}
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}
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void
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InitErrorLog (void)
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{
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int i;
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if (errorLogFile[0]) {
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i = creat (errorLogFile, 0666);
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if (i != -1) {
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if (i != STDERR_FILENO) {
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dup2 (i, STDERR_FILENO);
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close (i);
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}
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} else
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LogError ("Cannot open errorLogFile %s\n", errorLogFile);
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}
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}
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