HelenOS sources

vscanf           1401 uspace/lib/c/generic/stdio/scanf.c 	rc = vscanf(fmt, args);
vscanf            154 uspace/lib/c/include/stdio.h extern int vscanf(const char *, va_list);
vscanf            154 uspace/lib/posix/include/libc/stdio.h extern int vscanf(const char *, va_list);