diff options
Diffstat (limited to 'share/man/man9/getenv.9')
| -rw-r--r-- | share/man/man9/getenv.9 | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/share/man/man9/getenv.9 b/share/man/man9/getenv.9 index a530ca4..cf5d889 100644 --- a/share/man/man9/getenv.9 +++ b/share/man/man9/getenv.9 @@ -27,7 +27,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 22, 2013 +.Dd October 22, 2015 .Dt GETENV 9 .Os .Sh NAME @@ -78,7 +78,6 @@ function obtains the current value of the kernel environment variable .Fa name and returns a pointer to the string value. The caller should not modify the string pointed to by the return value. -.Pp The .Fn getenv function may allocate temporary storage, @@ -88,12 +87,24 @@ function must be called to release any allocated resources when the value returned by .Fn getenv is no longer needed. +.Pp +The +.Fn freeenv +function is used to release the resources allocated by a previous call to +.Fn getenv . The .Fa env argument passed to .Fn freeenv is the pointer returned by the earlier call to .Fn getenv . +Like +.Xr free 3 , +the +.Fa env +argument can be +.Va NULL , +in which case no action occurs. .Pp The .Fn setenv @@ -156,7 +167,8 @@ Otherwise, the value is interpreted as decimal. The value may contain a single character suffix specifying a unit for the value. -The interpreted value is multipled by the unit's magnitude before being returned. +The interpreted value is multiplied by the unit's magnitude before being +returned. The following unit suffixes are supported: .Bl -column -offset indent ".Sy Unit" ".Sy Magnitude" .It Sy Unit Ta Sy Magnitude @@ -179,7 +191,7 @@ zero is returned. If the variable exists, up to .Fa size - 1 -characters of it's value are copied to the buffer pointed to by +characters of its value are copied to the buffer pointed to by .Fa data followed by a null character and a non-zero value is returned. .Sh RETURN VALUES |
