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.Dd May 11, 2016 .Dt PGETENV 3PROC .Os .Sh NAME .Nm Pgetenv .Nd get process environment variable .Sh SYNOPSIS .Lb libproc n libproc.h .Ft "char *" .Fo Pgetenv .Fa "struct ps_prochandle *P" .Fa "const char *name" .Fa "char *buf" .Fa "size_t buflen" .Fc .Sh DESCRIPTION The .Fa Pgetenv function searches the environment of the process handle .Fa P for the environment variable named .Fa name . If found it copies up to .Fa buflen characters of the value, including the null terminator, into the buffer .Fa buf . Everything after the .Sy = sign is copied. .Sh RETURN VALUES Upon successful completion, the .Fn Pgetenv function returns the pointer .Fa buf . Otherwise, if the environment variable was not found, .Dv NULL is returned. .Sh INTERFACE STABILITY .Sy Uncommitted .Sh MT-LEVEL See .Sy LOCKING in .Xr libproc 3LIB . .Sh SEE ALSO .Xr libproc 3LIB , .Xr Penv_iter 3PROC , .Xr environ 5