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-rw-r--r--missing/setenv.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/missing/setenv.c b/missing/setenv.c
deleted file mode 100644
index c9cb4b2..0000000
--- a/missing/setenv.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (c) 1991, Larry Wall
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- */
-
-#include "ruby.h"
-
-#ifndef NT
-extern char **environ;
-#endif
-extern char **origenviron;
-
-#ifndef NT
-char *strdup();
-#endif
-
-#ifdef USE_WIN32_RTL_ENV
-#include <stdlib.h>
-#endif
-
-static int
-envix(nam)
-char *nam;
-{
- register int i, len = strlen(nam);
-
- for (i = 0; environ[i]; i++) {
- if (memcmp(environ[i],nam,len) == 0 && environ[i][len] == '=')
- break; /* memcmp must come first to avoid */
- } /* potential SEGV's */
- return i;
-}
-
-#ifndef WIN32
-void
-setenv(nam,val, n)
-char *nam, *val;
-int n;
-{
- register int i=envix(nam); /* where does it go? */
-
- if (environ == origenviron) { /* need we copy environment? */
- int j;
- int max;
- char **tmpenv;
-
- /*SUPPRESS 530*/
- for (max = i; environ[max]; max++) ;
- tmpenv = ALLOC_N(char*, max+2);
- for (j=0; j<max; j++) /* copy environment */
- tmpenv[j] = strdup(environ[j]);
- tmpenv[max] = 0;
- environ = tmpenv; /* tell exec where it is now */
- }
- if (!val) {
- while (environ[i]) {
- environ[i] = environ[i+1];
- i++;
- }
- return;
- }
- if (!environ[i]) { /* does not exist yet */
- REALLOC_N(environ, char*, i+2); /* just expand it a bit */
- environ[i+1] = 0; /* make sure it's null terminated */
- }
- else {
- free(environ[i]);
- }
- environ[i] = ALLOC_N(char, strlen(nam) + strlen(val) + 2);
-#ifndef MSDOS
- (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
-#else
- /* MS-DOS requires environment variable names to be in uppercase */
- /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but
- * some utilities and applications may break because they only look
- * for upper case strings. (Fixed strupr() bug here.)]
- */
- strcpy(environ[i],nam); strupr(environ[i]);
- (void)sprintf(environ[i] + strlen(nam),"=%s",val);
-#endif /* MSDOS */
-}
-#else /* if WIN32 */
-void
-setenv(nam,val, n)
-char *nam, *val;
-int n;
-{
-#ifdef USE_WIN32_RTL_ENV
-
- register char *envstr;
- STRLEN namlen = strlen(nam);
- STRLEN vallen;
- char *oldstr = environ[envix(nam)];
-
- /* putenv() has totally broken semantics in both the Borland
- * and Microsoft CRTLs. They either store the passed pointer in
- * the environment without making a copy, or make a copy and don't
- * free it. And on top of that, they dont free() old entries that
- * are being replaced/deleted. This means the caller must
- * free any old entries somehow, or we end up with a memory
- * leak every time setenv() is called. One might think
- * one could directly manipulate environ[], like the UNIX code
- * above, but direct changes to environ are not allowed when
- * calling putenv(), since the RTLs maintain an internal
- * *copy* of environ[]. Bad, bad, *bad* stink.
- * GSAR 97-06-07
- */
-
- if (!val) {
- if (!oldstr)
- return;
- val = "";
- vallen = 0;
- }
- else
- vallen = strlen(val);
- envstr = ALLOC_N(char, namelen + vallen + 3);
- (void)sprintf(envstr,"%s=%s",nam,val);
- (void)putenv(envstr);
- if (oldstr)
- free(oldstr);
-#ifdef _MSC_VER
- free(envstr); /* MSVCRT leaks without this */
-#endif
-
-#else /* !USE_WIN32_RTL_ENV */
-
- /* The sane way to deal with the environment.
- * Has these advantages over putenv() & co.:
- * * enables us to store a truly empty value in the
- * environment (like in UNIX).
- * * we don't have to deal with RTL globals, bugs and leaks.
- * * Much faster.
- * Why you may want to enable USE_WIN32_RTL_ENV:
- * * environ[] and RTL functions will not reflect changes,
- * which might be an issue if extensions want to access
- * the env. via RTL. This cuts both ways, since RTL will
- * not see changes made by extensions that call the Win32
- * functions directly, either.
- * GSAR 97-06-07
- */
- SetEnvironmentVariable(nam,val);
-
-#endif
-}
-
-#endif /* WIN32 */