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#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
static FILE *logfile = 0;
void
logger(char *fmt, ...)
{
va_list args;
char *p, *endp;
#if HAVE_VASPRINTF
char *line;
#else
char biglogbuf[1024];
#endif
int size;
if ( logfile == 0 ) {
logfile = fopen("levee.log", "w");
setvbuf(logfile, 0, _IOLBF, 0);
}
va_start(args, fmt);
#if HAVE_VASPRINTF
if ( (size = vasprintf(&line, fmt, args)) > 0 ) {
p = line;
endp = &line[size];
}
#else
if ( (size = vsprintf(biglogbuf, fmt, args)) > 0 ) {
p = biglogbuf;
endp = &biglogbuf[size];
}
#endif
if (size > 0) {
for ( ; p < endp; p++ ) {
if ( *p >= ' ' && *p < 127 )
fputc(*p, logfile);
else
fprintf(logfile, "%%%02x", (unsigned int)(*p));
}
fputc('\n', logfile);
#if HAVE_VASPRINTF
free(line);
#endif
}
}
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