diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/stdlib/getenv.3 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/libc/stdlib/getenv.3 b/lib/libc/stdlib/getenv.3 index 3347bda..aff0d7d 100644 --- a/lib/libc/stdlib/getenv.3 +++ b/lib/libc/stdlib/getenv.3 @@ -139,6 +139,21 @@ The .Fn getenv function conforms to .St -ansiC . +.Sh BUGS +Successive calls to +.Fn setenv +or +.Fn putenv +assigning a differently sized +.Ar value +to the same +.Ar name +will result in a memory leak. The FreeBSD semantics for these functions +(namely, that the contents of +.Ar value +are copied and that old values remain accessible indefinitely) make this +bug unavoidable. Future versions may eliminate one or both of these +semantic guarantees in order to fix the bug. .Sh HISTORY The functions .Fn setenv |
