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nssm/env.h

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Moved environment functions to a new file. Moved format_environment(), unformat_environment() and test_environment() to env.cpp.
11 years ago
#ifndef ENV_H
#define ENV_H
Fixed broken environment on restart. We were calling duplicate_environment() to copy the service's initial environment prior to restarting it. However the duplicate_environment() function modified its input by replacing = characters with NULLs. That is not allowed; the memory returned by GetEnvironmentStrings() must be treated as readonly. After two restarts the application would run with a null environment and probably crash. We now copy the initial environment on to the heap and operate on the copy, ensuring that the corruption does not occur. Thanks Alessandro Gherardi.
11 years ago
TCHAR *copy_environment_block(TCHAR *);
Added more environment functions. useful_environment() skips the uninteresting variables at the start of an environment block, returning a pointer to the first useful variable. expand_environment_string() expands a string with ExpandEnvironmentStrings() and returns a pointer to the expanded string, which must be freed after use. set_environment_block() iterates through all the variables in an environment block, expands each one with expand_environment_string() and calls SetEnvironmentVariable() with the expanded value. clear_environment() removes all variables from the current environment. duplicate_environment() duplicates an environment block by first calling clear_environment() then set_environment_block() with the source block. Thus it ensures that the variables in the block - and only those - are set in the current environment.
11 years ago
TCHAR *useful_environment(TCHAR *);
TCHAR *expand_environment_string(TCHAR *);
int set_environment_block(TCHAR *);
int clear_environment();
int duplicate_environment(TCHAR *);
Moved environment functions to a new file. Moved format_environment(), unformat_environment() and test_environment() to env.cpp.
11 years ago
int test_environment(TCHAR *);
Fixed broken environment on restart. We were calling duplicate_environment() to copy the service's initial environment prior to restarting it. However the duplicate_environment() function modified its input by replacing = characters with NULLs. That is not allowed; the memory returned by GetEnvironmentStrings() must be treated as readonly. After two restarts the application would run with a null environment and probably crash. We now copy the initial environment on to the heap and operate on the copy, ensuring that the corruption does not occur. Thanks Alessandro Gherardi.
11 years ago
void duplicate_environment_strings(TCHAR *);
Moved environment functions to a new file. Moved format_environment(), unformat_environment() and test_environment() to env.cpp.
11 years ago
#endif