#include <stdlib.h>
char *getenv(const char *name);
The getenv() function searches the environment for a
string of the form name=value;
and, if such a string is present, it returns a pointer to value.
If it cannot find the specified name, it returns a null pointer.
- name
-
Points to the name of the system variable to look up.
If successful, getenv()
returns a pointer to a string that contains the value for the
specified name. If it cannot find the specified name, it returns
a null pointer.
ANSI ISO 9899-1990.
MT-Safe.
When a NuTCRACKER Platform application starts, the NuTCRACKER Platform converts all paths in
the environment
from Windows format to NuTCRACKER Platform format. When exec()ing
another program, the environment is converted back to Win32 format.
When adding paths to the environment with putenv(),
you should ensure that these paths are in NuTCRACKER Platform format, by using
_NutPathToNutc() when appropriate. If you fail to do
this, the path can be misinterpreted when NuTCRACKER Platform tries to convert the
environment back to Win32 format.
You can control which environment variables get converted and which do
not with the by setting the $NUT_ENV_CONVERT or
NUT_ENV_LITERAL environment variables.
MKS Toolkit for Professional Developers
MKS Toolkit for Enterprise Developers
MKS Toolkit for Enterprise Developers 64-Bit Edition
- Functions:
- _NutWIN32getenv(), execl(), execlp(), execv(), execve(), execvp(), putenv()
- Miscellaneous:
- environ
MKS Toolkit 9.2 Documentation Build 16.