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  • Hash : 486302d6
    Author : Patrick Steinhardt
    Date : 2016-03-01T19:11:33

    submodule: avoid passing NULL pointers to strncmp In C89 it is undefined behavior to pass `NULL` pointers to `strncmp` and later on in C99 it has been explicitly stated that functions with an argument declared as `size_t nmemb` specifying the array length shall always have valid parameters, no matter if `nmemb` is 0 or not (see ISO 9899 ยง7.21.1.2). The function `str_equal_no_trailing_slash` always passes its parameters to `strncmp` if their lengths match. This means if one parameter is `NULL` and the other one either `NULL` or a string with length 0 we will pass the pointers to `strncmp` and cause undefined behavior. Fix this by explicitly handling the case when both lengths are 0.