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/*
* nvidia-installer: A tool for installing NVIDIA software packages on
* Unix and Linux systems.
*
* Copyright (C) 2003 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses>.
*
*
* log.c
*/
#include <stdio.h>
#include <stdarg.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include "nvidia-installer.h"
#include "misc.h"
/* global stream for log output */
static FILE *log_file_stream;
/* convenience macro for logging boolean values */
#define BOOLSTR(b) ((b) ? "true" : "false")
/* convenience macro for catching NULL strings */
#define STRSTR(x) ((x) ? (x) : "(not specified)")
#define SELINUXSTR(x) ({ \
const char *__selinux_str = NULL; \
switch (x) { \
case SELINUX_FORCE_YES: __selinux_str = "yes"; break; \
case SELINUX_FORCE_NO: __selinux_str = "no"; break; \
case SELINUX_DEFAULT: __selinux_str = "default"; break; \
default: __selinux_str = "(not specified)"; \
} \
__selinux_str; \
})
/*
* log_init() - if logging is enabled, initialize the log file; if
* initializing the log file fails, print an error to stderr and
* disable loggging. If initialization succeeds, write a header line
* and the state of all noteworthy options.
*/
void log_init(Options *op, int argc, char * const argv[])
{
time_t now;
char *path;
int i;
if (!op->logging) return;
log_file_stream = fopen(op->log_file_name, "w");
if (!log_file_stream) {
fprintf(stderr, "%s: Error opening log file '%s' for "
"writing (%s); disabling logging.\n",
PROGRAM_NAME, op->log_file_name, strerror(errno));
op->logging = FALSE;
return;
}
log_printf(op, NULL, "%s log file '%s'",
PROGRAM_NAME, op->log_file_name);
now = time(NULL);
log_printf(op, NULL, "creation time: %s", ctime(&now));
log_printf(op, NULL, "installer version: %s",
NVIDIA_INSTALLER_VERSION);
log_printf(op, NULL, "");
path = getenv("PATH");
log_printf(op, NULL, "PATH: %s", STRSTR(path));
log_printf(op, NULL, "");
log_printf(op, NULL, "nvidia-installer command line:");
for (i = 0; i < argc; i++) {
log_printf(op, " ", "%s", argv[i]);
}
log_printf(op, NULL, "");
} /* log_init() */
/*
* log_printf() - if the logging option is set, this function writes
* the given printf-style input to the log_file_stream; if the logging
* option is not set, then nothing is done here.
*/
void log_printf(Options *op, const char *prefix, const char *fmt, ...)
{
char *buf;
int append_newline = TRUE;
if (!op->logging) return;
NV_VSNPRINTF(buf, fmt);
/*
* do not append a newline to the end of the string if the caller
* already did
*/
if (buf && buf[0] && (buf[strlen(buf) - 1] == '\n')) {
append_newline = FALSE;
}
if (prefix) {
fprintf(log_file_stream, "%s", prefix);
}
fprintf(log_file_stream, "%s%s", buf, append_newline ? "\n" : "");
nvfree(buf);
/* flush, just to be safe */
fflush(log_file_stream);
} /* log_printf() */
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