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-rw-r--r--src/lib/kStuff/kHlp/Bare/kHlpBareEnv.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/lib/kStuff/kHlp/Bare/kHlpBareEnv.c b/src/lib/kStuff/kHlp/Bare/kHlpBareEnv.c
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+++ b/src/lib/kStuff/kHlp/Bare/kHlpBareEnv.c
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+/* $Id: kHlpBareEnv.c 29 2009-07-01 20:30:29Z bird $ */
+/** @file
+ * kHlpBare - Environment Manipulation.
+ */
+
+/*
+ * Copyright (c) 2006-2007 Knut St. Osmundsen <bird-kStuff-spamix@anduin.net>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*******************************************************************************
+* Header Files *
+*******************************************************************************/
+#include <k/kHlpEnv.h>
+#include <k/kHlpString.h>
+#include <k/kErrors.h>
+
+#if K_OS == K_OS_DARWIN
+
+#elif K_OS == K_OS_LINUX
+
+#elif K_OS == K_OS_OS2
+# define INCL_BASE
+# define INCL_ERRORS
+# include <os2.h>
+
+#elif K_OS == K_OS_WINDOWS
+# include <Windows.h>
+
+#else
+# error "port me"
+#endif
+
+
+KHLP_DECL(int) kHlpGetEnv(const char *pszVar, char *pszVal, KSIZE cchVal)
+{
+#if K_OS == K_OS_DARWIN
+ /** @todo need to figure out where the stuff is or how it's inherited on darwin ... */
+ return KERR_ENVVAR_NOT_FOUND;
+
+#elif K_OS == K_OS_LINUX
+ /** @todo either read /proc/self/environ or figure out where in the memory the initial environment is... */
+ return KERR_ENVVAR_NOT_FOUND;
+
+#elif K_OS == K_OS_OS2
+ PSZ pszValue = NULL;
+ int rc;
+
+ *pszVal = '\0';
+ rc = DosScanEnv((PCSZ)pszVar, &pszValue);
+ if (!rc)
+ {
+ KSIZE cch = kHlpStrLen((const char *)pszValue);
+ if (cchVal > cch)
+ kHlpMemCopy(pszVal, pszValue, cch + 1);
+ else
+ rc = KERR_BUFFER_OVERFLOW;
+ }
+ else
+ rc = KERR_ENVVAR_NOT_FOUND;
+ return rc;
+
+#elif K_OS == K_OS_WINDOWS
+ DWORD cch;
+
+ SetLastError(0);
+ cch = GetEnvironmentVariable(pszVar, pszVal, cchVal);
+ if (cch > 0 && cch < cchVal)
+ return 0;
+
+ *pszVal = '\0';
+ if (cch >= cchVal)
+ return KERR_BUFFER_OVERFLOW;
+ if (GetLastError() == ERROR_ENVVAR_NOT_FOUND)
+ return KERR_ENVVAR_NOT_FOUND;
+ return GetLastError();
+
+#else
+# error "Port me"
+#endif
+}
+