mirrors/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-23 09:43:32 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

manual: document snprintf truncation better

Browse Source
This commit is contained in:
Paul Eggert 2023-04-08 13:51:26 -07:00
parent 1fb225923a
commit f173e27272
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
manual/stdio.texi
View File

@ -2439,7 +2439,10 @@ If @var{size} is zero, nothing, not even the null byte, shall be written and
The return value is the number of characters which would be generated
for the given input, excluding the trailing null. If this value is
greater than or equal to @var{size}, not all characters from the result have
been stored in @var{s}. You should try again with a bigger output
been stored in @var{s}. If this happens, you should be wary of using
the truncated result as that could lead to security, encoding, or
other bugs in your program (@pxref{Truncating Strings}).
Instead, you should try again with a bigger output
string. Here is an example of doing this:
@smallexample