Fixed the build under BeOS/Dano:

* setenv() actually exists in Dano.
* On R5, it now uses sprintf() - the previous version would not compile.
* Cleaned some weird code in TermBuffer.cpp to set the "buf" variable to the
  end of the string - it also no longer uses the index() BSD extension
  (same as strchr()).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21793 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/terminal/Shell.cpp

@@ -86,7 +86,7 @@
 /*
  * Set environment variable.
  */
-#if !defined(__HAIKU__) || defined(HAIKU_TARGET_PLATFORM_LIBBE_TEST)
+#if defined(HAIKU_TARGET_PLATFORM_BEOS) || defined(HAIKU_TARGET_PLATFORM_LIBBE_TEST)
 
 extern char **environ;
 
@@ -102,7 +102,7 @@ setenv(const char *var, const char *value, bool overwrite)
 			/* found it */
 			if (overwrite) {
 				environ[envindex] = (char *)malloc((unsigned)len + val_len + 2);
-				snprintf(environ[envindex], "%s=%s", var, value);
+				sprintf(environ[envindex], "%s=%s", var, value);
 			}
 			return 0;
 		}

src/apps/terminal/TermApp.cpp

@@ -25,6 +25,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 
 static bool sUsageRequested = false;

src/apps/terminal/TermBuffer.cpp

@@ -200,7 +200,7 @@ TermBuffer::GetString(int row, int col, int num, uchar *buf,
 		if (ptr->attr != (ptr + 1)->attr)
 			return all_count;
 
-		buf = (uchar *)index((char *)buf, 0x00);
+		buf += strlen((char *)buf);
 		ptr++;
 		col++;