HelenOS sources

vfscanf          1384 uspace/lib/c/generic/stdio/scanf.c 	rc = vfscanf(f, fmt, args);
vfscanf          1392 uspace/lib/c/generic/stdio/scanf.c 	return vfscanf(stdin, fmt, ap);
vfscanf            47 uspace/lib/c/generic/stdio/sscanf.c 	return vfscanf(&f, fmt, ap);
vfscanf           156 uspace/lib/c/include/stdio.h extern int vfscanf(FILE *, const char *, va_list);
vfscanf           156 uspace/lib/posix/include/libc/stdio.h extern int vfscanf(FILE *, const char *, va_list);