diff --git a/faq.md b/faq.md index 75ee72cb5..eda76ebba 100644 --- a/faq.md +++ b/faq.md @@ -95,16 +95,23 @@ because of alarming warnings that can be displayed, in some systems at runtime interspersed with the output of the program. For instance in macOS the entry [1990/tbr](1990/tbr/README.md) would output the -warning in such a way that caused confusing output for the entry. +warning in such a way that caused confusing output for the entry, looking like: -In some cases this is not so easy to fix and in one case at least there is an -alternate version that has the fix instead due to a problem it creates (correct -output but segfaults after the output in one of the forms of input). +```sh +$ ./tbr +$ warning: this program uses gets(), which is unsafe. +# nothing here, what to do? +``` -In some cases it is not possible to fix or at least highly unlikely and so those -have mainly not been touched except one that has had the buffer size increased -(which could be done for others that are not possible to change to `fgets()` but -this has not been done). +In some cases changing the code to use `fgets()` is not so easy to fix and in +one case at least there is an alternate version that has the fix instead due to +a problem it creates (correct output but segfaults after the output in one of +the forms of input). + +In some cases it is not possible to fix or at least it is highly unlikely and so +those have mainly not been touched except one that has had the buffer size +increased (which could be done for others that are not possible to change to +`fgets()` though this has not been done). Some entries can be made to look almost identical to the original entry. For instance the fix to [1988/reddy](1988/reddy/README.md) required only a single @@ -115,7 +122,8 @@ these problems. NOTE: due to 'compatibility reasons' `fgets()` stores the newline and `gets()` does not. We're not sure how this is compatibility but either way it can cause a -problem and it is this that has complicated some fixes. +problem and it is this that has complicated most of the fixes though again some +can look almost identical. ## Q: I cannot get entry XYZZY from year 19xx to compile!