+/* $Id$ */\r
+\r
+/* _PDCLIB_fdopen( _PDCLIB_fd_t fd, const char * )\r
+\r
+ This file is part of the Public Domain C Library (PDCLib).\r
+ Permission is granted to use, modify, and / or redistribute at will.\r
+*/\r
+\r
+#include <stdio.h>\r
+#include <stdlib.h>\r
+\r
+#ifndef REGTEST\r
+#include <_PDCLIB_glue.h>\r
+#include <string.h>\r
+\r
+extern struct _PDCLIB_file_t * _PDCLIB_filelist;\r
+\r
+struct _PDCLIB_file_t * _PDCLIB_fdopen( _PDCLIB_fd_t fd, \r
+ int mode,\r
+ const char * _PDCLIB_restrict filename )\r
+{\r
+ size_t filename_len;\r
+ struct _PDCLIB_file_t * rc;\r
+ if ( mode == NULL )\r
+ {\r
+ /* Mode invalid */\r
+ return NULL;\r
+ }\r
+ /* To reduce the number of malloc calls, all data fields are concatenated:\r
+ * the FILE structure itself,\r
+ * ungetc buffer,\r
+ * filename buffer,\r
+ * data buffer.\r
+ Data buffer comes last because it might change in size ( setvbuf() ).\r
+ */\r
+ filename_len = filename ? strlen( filename ) + 1 : 1;\r
+ if ( ( rc = calloc( 1, sizeof( struct _PDCLIB_file_t ) + _PDCLIB_UNGETCBUFSIZE + filename_len + BUFSIZ ) ) == NULL )\r
+ {\r
+ /* no memory */\r
+ return NULL;\r
+ }\r
+ rc->status = mode;\r
+ rc->handle = fd;\r
+ /* Setting pointers into the memory block allocated above */\r
+ rc->ungetbuf = (unsigned char *)rc + sizeof( struct _PDCLIB_file_t );\r
+ rc->filename = (char *)rc->ungetbuf + _PDCLIB_UNGETCBUFSIZE;\r
+ rc->buffer = rc->filename + filename_len;\r
+ /* Copying filename to FILE structure */\r
+ if(filename) strcpy( rc->filename, filename );\r
+ /* Initializing the rest of the structure */\r
+ rc->bufsize = BUFSIZ;\r
+ rc->bufidx = 0;\r
+ rc->ungetidx = 0;\r
+ /* Setting buffer to _IOLBF because "when opened, a stream is fully\r
+ buffered if and only if it can be determined not to refer to an\r
+ interactive device."\r
+ */\r
+ rc->status |= _IOLBF;\r
+ /* TODO: Setting mbstate */\r
+ /* Adding to list of open files */\r
+ rc->next = _PDCLIB_filelist;\r
+ _PDCLIB_filelist = rc;\r
+ return rc;\r
+}\r
+\r
+#endif\r
+\r
+#ifdef TEST\r
+#include <_PDCLIB_test.h>\r
+\r
+int main( void )\r
+{\r
+ /* Some of the tests are not executed for regression tests, as the libc on\r
+ my system is at once less forgiving (segfaults on mode NULL) and more\r
+ forgiving (accepts undefined modes).\r
+ */\r
+ FILE * fh;\r
+ remove( testfile );\r
+ TESTCASE_NOREG( fopen( NULL, NULL ) == NULL );\r
+ TESTCASE( fopen( NULL, "w" ) == NULL );\r
+ TESTCASE_NOREG( fopen( "", NULL ) == NULL );\r
+ TESTCASE( fopen( "", "w" ) == NULL );\r
+ TESTCASE( fopen( "foo", "" ) == NULL );\r
+ TESTCASE_NOREG( fopen( testfile, "wq" ) == NULL ); /* Undefined mode */\r
+ TESTCASE_NOREG( fopen( testfile, "wr" ) == NULL ); /* Undefined mode */\r
+ TESTCASE( ( fh = fopen( testfile, "w" ) ) != NULL );\r
+ TESTCASE( fclose( fh ) == 0 );\r
+ TESTCASE( remove( testfile ) == 0 );\r
+ return TEST_RESULTS;\r
+}\r
+\r
+#endif\r