ftell.c (82673) | ftell.c (82683) |
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1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 25 unchanged lines hidden (view full) --- 34 * SUCH DAMAGE. 35 */ 36 37#if defined(LIBC_SCCS) && !defined(lint) 38#if 0 39static char sccsid[] = "@(#)ftell.c 8.2 (Berkeley) 5/4/95"; 40#endif 41static const char rcsid[] = | 1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 25 unchanged lines hidden (view full) --- 34 * SUCH DAMAGE. 35 */ 36 37#if defined(LIBC_SCCS) && !defined(lint) 38#if 0 39static char sccsid[] = "@(#)ftell.c 8.2 (Berkeley) 5/4/95"; 40#endif 41static const char rcsid[] = |
42 "$FreeBSD: head/lib/libc/stdio/ftell.c 82673 2001-08-31 19:50:25Z ache $"; | 42 "$FreeBSD: head/lib/libc/stdio/ftell.c 82683 2001-08-31 20:17:32Z ache $"; |
43#endif /* LIBC_SCCS and not lint */ 44 45#include "namespace.h" 46#include <sys/types.h> 47#include <errno.h> 48#include <limits.h> 49#include <stdio.h> 50#include "un-namespace.h" --- 58 unchanged lines hidden (view full) --- 109 return (-1); 110 } 111 if (fp->_flags & __SRD) { 112 /* 113 * Reading. Any unread characters (including 114 * those from ungetc) cause the position to be 115 * smaller than that in the underlying object. 116 */ | 43#endif /* LIBC_SCCS and not lint */ 44 45#include "namespace.h" 46#include <sys/types.h> 47#include <errno.h> 48#include <limits.h> 49#include <stdio.h> 50#include "un-namespace.h" --- 58 unchanged lines hidden (view full) --- 109 return (-1); 110 } 111 if (fp->_flags & __SRD) { 112 /* 113 * Reading. Any unread characters (including 114 * those from ungetc) cause the position to be 115 * smaller than that in the underlying object. 116 */ |
117 pos -= fp->_r; 118 if (pos < 0) { | 117 if ((pos -= fp->_r) < 0 || 118 (HASUB(fp) && (pos -= fp->_ur) < 0)) { |
119 fp->_p = fp->_bf._base; 120 fp->_r = 0; 121 if (HASUB(fp)) 122 FREEUB(fp); 123 if (spos == -1) 124 goto get_real_pos; 125 pos = spos; | 119 fp->_p = fp->_bf._base; 120 fp->_r = 0; 121 if (HASUB(fp)) 122 FREEUB(fp); 123 if (spos == -1) 124 goto get_real_pos; 125 pos = spos; |
126 } else if (HASUB(fp)) { 127 pos -= fp->_ur; 128 if (pos < 0) { 129 fp->_p = fp->_bf._base; 130 fp->_r = 0; 131 FREEUB(fp); 132 if (spos == -1) 133 goto get_real_pos; 134 pos = spos; 135 } | |
136 } 137 } else if ((fp->_flags & __SWR) && fp->_p != NULL) { 138 /* 139 * Writing. Any buffered characters cause the 140 * position to be greater than that in the 141 * underlying object. 142 */ 143 n = fp->_p - fp->_bf._base; 144 if (pos > OFF_MAX - n) { 145 errno = EOVERFLOW; 146 return (-1); 147 } 148 pos += n; 149 } 150 return (pos); 151} | 126 } 127 } else if ((fp->_flags & __SWR) && fp->_p != NULL) { 128 /* 129 * Writing. Any buffered characters cause the 130 * position to be greater than that in the 131 * underlying object. 132 */ 133 n = fp->_p - fp->_bf._base; 134 if (pos > OFF_MAX - n) { 135 errno = EOVERFLOW; 136 return (-1); 137 } 138 pos += n; 139 } 140 return (pos); 141} |