diff options
Diffstat (limited to 'lib/libc/stdlib/getenv.3')
| -rw-r--r-- | lib/libc/stdlib/getenv.3 | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/lib/libc/stdlib/getenv.3 b/lib/libc/stdlib/getenv.3 index 3d365f1..35547aa 100644 --- a/lib/libc/stdlib/getenv.3 +++ b/lib/libc/stdlib/getenv.3 @@ -50,21 +50,17 @@ .Ft int .Fn setenv "const char *name" "const char *value" "int overwrite" .Ft int -.Fn putenv "const char *string" -.Ft void +.Fn putenv "char *string" +.Ft int .Fn unsetenv "const char *name" .Sh DESCRIPTION These functions set, unset and fetch environment variables from the host .Em environment list . For compatibility with differing environment conventions, -the given arguments -.Fa name -and +the given argument .Fa value -may be appended and prepended, -respectively, -with an equal sign +may be prepended with an equal sign .Dq Li \&= . .Pp The @@ -121,9 +117,21 @@ is not in the current environment, .Dv NULL is returned. .Pp -.Rv -std setenv putenv +.Rv -std setenv putenv unsetenv .Sh ERRORS .Bl -tag -width Er +.It Bq Er EINVAL +The function +.Fn setenv +or +.Fn unsetenv +failed because the +.Fa name +is a +.Dv NULL +pointer, points to an empty string, or points to a string containing an +.Dq Li \&= +character. .It Bq Er ENOMEM The function .Fn setenv @@ -141,6 +149,12 @@ The .Fn getenv function conforms to .St -isoC . +The +.Fn setenv +and +.Fn unsetenv +functions conforms to +.St -p1003.1-2001 . .Sh HISTORY The functions .Fn setenv |
