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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <fcntl.h>
#include <assert.h>
#include "log_file.h"
char *log_file = NULL;
static FILE *flog = NULL;
int log_open_file(void)
{
if (!log_file) {
fprintf(stderr, "%s\n", "The path to the logfile was not set.");
return 1;
}
flog = fopen(log_file, "a+");
if (!flog) {
fprintf(stderr, "Could not open '%s' for writing: %s\n",
log_file, strerror(errno));
return 1;
}
if (setvbuf(flog, NULL, _IOLBF, BUFSIZ)) {
log_close_file();
return 1;
}
return 0;
}
void log_close_file(void)
{
fclose(flog);
flog = NULL;
}
void log_fmt_file(log_priority prio, const char *fmt, ...)
{
pid_t my_pid;
char out[LOGMSG_MAXLEN+1] = {0};
va_list arglist;
if (prio < log_prio)
return;
assert(fmt);
va_start(arglist, fmt);
assert( vsnprintf(&out[0], LOGMSG_MAXLEN, fmt, arglist) >= 0 );
va_end(arglist);
my_pid = getpid();
switch (prio) {
case DEBUG:
fprintf(flog, "[DEBUG] [%d] %s\n", my_pid, out);
break;
case NOTICE:
fprintf(flog, "[NOTICE] [%d] %s\n", my_pid, out);
break;
case WARNING:
fprintf(flog, "[WARNING][%d] %s\n", my_pid, out);
break;
case ERROR:
fprintf(flog, "[ERROR] [%d] %s\n", my_pid, out);
break;
case CMD:
fprintf(flog, "[CMD] [%d] %s\n", my_pid, out);
break;
}
}
void log_fmtex_file(log_priority prio, const char *srcfile,
size_t line, const char *fmt, ...)
{
pid_t my_pid;
char out[LOGMSG_MAXLEN+1] = {0};
va_list arglist;
if (prio < log_prio)
return;
assert(fmt);
va_start(arglist, fmt);
assert( vsnprintf(&out[0], LOGMSG_MAXLEN, fmt, arglist) >= 0 );
va_end(arglist);
my_pid = getpid();
switch (prio) {
case DEBUG:
fprintf(flog, "[DEBUG] [%d] %s.%zu: %s\n", my_pid, srcfile,
line, out);
break;
case NOTICE:
fprintf(flog, "[NOTICE] [%d] %s.%zu: %s\n",
my_pid, srcfile, line, out);
break;
case WARNING:
fprintf(flog, "[WARNING][%d] %s.%zu: %s\n",
my_pid, srcfile, line, out);
break;
case ERROR:
fprintf(flog, "[ERROR] [%d] %s.%zu: %s\n",
my_pid, srcfile, line, out);
break;
case CMD:
break;
}
}
void log_fmtexerr_file(log_priority prio, const char *srcfile,
size_t line, const char *fmt, ...)
{
pid_t my_pid;
int saved_errno = errno;
char out[LOGMSG_MAXLEN+1] = {0};
va_list arglist;
if (prio < log_prio)
return;
assert(fmt);
va_start(arglist, fmt);
assert( vsnprintf(&out[0], LOGMSG_MAXLEN, fmt, arglist) >= 0 );
va_end(arglist);
my_pid = getpid();
switch (prio) {
case DEBUG:
if (saved_errno)
fprintf(flog, "[DEBUG] [%d] %s.%zu: %s failed: %s\n",
my_pid, srcfile, line, out,
strerror(saved_errno));
else
fprintf(flog, "[DEBUG] [%d] %s.%zu: %s failed\n",
my_pid, srcfile, line, out);
break;
case NOTICE:
if (saved_errno)
fprintf(flog, "[NOTICE] [%d] %s.%zu: %s failed: %s\n",
my_pid, srcfile,
line, out, strerror(saved_errno));
else
fprintf(flog, "[NOTICE] [%d] %s.%zu: %s failed\n",
my_pid, srcfile,
line, out);
break;
case WARNING:
if (saved_errno)
fprintf(flog, "[WARNING][%d] %s.%zu: %s failed: %s\n",
my_pid, srcfile,
line, out, strerror(saved_errno));
else
fprintf(flog, "[WARNING][%d] %s.%zu: %s failed\n",
my_pid, srcfile,
line, out);
break;
case ERROR:
if (saved_errno)
fprintf(flog, "[ERROR] [%d] %s.%zu: %s failed: %s\n",
my_pid, srcfile,
line, out, strerror(saved_errno));
else
fprintf(flog, "[ERROR] [%d] %s.%zu: %s failed\n",
my_pid, srcfile,
line, out);
break;
case CMD:
break;
}
}
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