The util_put_long_to_file function writes a single line containing a long integer to a specified file.
#include <libproxy/cutil.h> ing util_put_long_to_file(char *filename, long l);
nonzero if the operation succeeded
0 if the operation failed
char *file is the name of the file to be written.
long l is the long integer to write.
util_get_int_from_file, util_get_long_from_file, util_put_int_to_file, util_put_string_to_file