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Merge pull request #308 from AxisRay/master

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Bugfix:function setenv() and unsetenv() are invalid on windows AND no variable prefix set for WIN32 in CMakeLists
This commit is contained in:
Philippe Teuwen 2017-02-17 12:24:38 +01:00 committed by GitHub
commit be1b897617
2 changed files with 13 additions and 9 deletions
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1
CMakeLists.txt
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@ -177,6 +177,7 @@ IF(WIN32)
GET_CURRENT_YEAR(CURRENT_YEAR)
MESSAGE("Year for copyright is " ${CURRENT_YEAR})
SET(prefix ${CMAKE_INSTALL_PREFIX})
SET(RC_COMMENT "${PACKAGE_NAME} library")
SET(RC_INTERNAL_NAME "${PACKAGE_NAME} ${WIN32_MODE}")
SET(RC_ORIGINAL_NAME ${PACKAGE_NAME}.dll)

21
contrib/win32/stdlib.c
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@ -34,21 +34,24 @@
// Handle platform specific includes
#include "contrib/windows.h"
//There is no setenv()and unsetenv() in windows,but we can use putenv() instead.
int setenv(const char *name, const char *value, int overwrite)
{
int exists = GetEnvironmentVariableA(name, NULL, 0);
if ((exists && overwrite) || (!exists)) {
if (!SetEnvironmentVariableA(name, value)) {
// Set errno here correctly
return -1;
char* env = getenv(name);
if ((env && overwrite) || (!env)) {
char* str[32];
strcpy(str,name);
strcat(str,"=");
strcat(str,value);
return putenv(str);
}
return 0;
}
// Exists and overwrite is 0.
return -1;
}
void unsetenv(const char *name)
{
SetEnvironmentVariableA(name, NULL);
char* str[32];
strcpy(str,name);
strcat(str,"=");
putenv(str);
}