stdio.c (249808) | stdio.c (249810) |
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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 --- 20 unchanged lines hidden (view full) --- 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if defined(LIBC_SCCS) && !defined(lint) 34static char sccsid[] = "@(#)stdio.c 8.1 (Berkeley) 6/4/93"; 35#endif /* LIBC_SCCS and not lint */ 36#include <sys/cdefs.h> | 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 --- 20 unchanged lines hidden (view full) --- 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if defined(LIBC_SCCS) && !defined(lint) 34static char sccsid[] = "@(#)stdio.c 8.1 (Berkeley) 6/4/93"; 35#endif /* LIBC_SCCS and not lint */ 36#include <sys/cdefs.h> |
37__FBSDID("$FreeBSD: head/lib/libc/stdio/stdio.c 249808 2013-04-23 13:33:13Z emaste $"); | 37__FBSDID("$FreeBSD: head/lib/libc/stdio/stdio.c 249810 2013-04-23 14:36:44Z emaste $"); |
38 39#include "namespace.h" 40#include <errno.h> 41#include <fcntl.h> 42#include <limits.h> 43#include <stdio.h> 44#include <stdlib.h> 45#include <unistd.h> 46#include "un-namespace.h" 47#include "local.h" 48 49/* 50 * Small standard I/O/seek/close functions. 51 */ 52int | 38 39#include "namespace.h" 40#include <errno.h> 41#include <fcntl.h> 42#include <limits.h> 43#include <stdio.h> 44#include <stdlib.h> 45#include <unistd.h> 46#include "un-namespace.h" 47#include "local.h" 48 49/* 50 * Small standard I/O/seek/close functions. 51 */ 52int |
53__sread(cookie, buf, n) 54 void *cookie; 55 char *buf; 56 int n; | 53__sread(void *cookie, char *buf, int n) |
57{ 58 FILE *fp = cookie; 59 60 return(_read(fp->_file, buf, (size_t)n)); 61} 62 63int | 54{ 55 FILE *fp = cookie; 56 57 return(_read(fp->_file, buf, (size_t)n)); 58} 59 60int |
64__swrite(cookie, buf, n) 65 void *cookie; 66 char const *buf; 67 int n; | 61__swrite(void *cookie, char const *buf, int n) |
68{ 69 FILE *fp = cookie; 70 71 return (_write(fp->_file, buf, (size_t)n)); 72} 73 74fpos_t | 62{ 63 FILE *fp = cookie; 64 65 return (_write(fp->_file, buf, (size_t)n)); 66} 67 68fpos_t |
75__sseek(cookie, offset, whence) 76 void *cookie; 77 fpos_t offset; 78 int whence; | 69__sseek(void *cookie, fpos_t offset, int whence) |
79{ 80 FILE *fp = cookie; 81 82 return (lseek(fp->_file, (off_t)offset, whence)); 83} 84 85int | 70{ 71 FILE *fp = cookie; 72 73 return (lseek(fp->_file, (off_t)offset, whence)); 74} 75 76int |
86__sclose(cookie) 87 void *cookie; | 77__sclose(void *cookie) |
88{ 89 90 return (_close(((FILE *)cookie)->_file)); 91} 92 93/* 94 * Higher level wrappers. 95 */ 96int | 78{ 79 80 return (_close(((FILE *)cookie)->_file)); 81} 82 83/* 84 * Higher level wrappers. 85 */ 86int |
97_sread(fp, buf, n) 98 FILE *fp; 99 char *buf; 100 int n; | 87_sread(FILE *fp, char *buf, int n) |
101{ 102 int ret; 103 104 ret = (*fp->_read)(fp->_cookie, buf, n); 105 if (ret > 0) { 106 if (fp->_flags & __SOFF) { 107 if (fp->_offset <= OFF_MAX - ret) 108 fp->_offset += ret; 109 else 110 fp->_flags &= ~__SOFF; 111 } 112 } else if (ret < 0) 113 fp->_flags &= ~__SOFF; 114 return (ret); 115} 116 117int | 88{ 89 int ret; 90 91 ret = (*fp->_read)(fp->_cookie, buf, n); 92 if (ret > 0) { 93 if (fp->_flags & __SOFF) { 94 if (fp->_offset <= OFF_MAX - ret) 95 fp->_offset += ret; 96 else 97 fp->_flags &= ~__SOFF; 98 } 99 } else if (ret < 0) 100 fp->_flags &= ~__SOFF; 101 return (ret); 102} 103 104int |
118_swrite(fp, buf, n) 119 FILE *fp; 120 char const *buf; 121 int n; | 105_swrite(FILE *fp, char const *buf, int n) |
122{ 123 int ret; 124 int serrno; 125 126 if (fp->_flags & __SAPP) { 127 serrno = errno; 128 if (_sseek(fp, (fpos_t)0, SEEK_END) == -1 && 129 (fp->_flags & __SOPT)) --- 10 unchanged lines hidden (view full) --- 140 fp->_flags &= ~__SOFF; 141 142 } else if (ret < 0) 143 fp->_flags &= ~__SOFF; 144 return (ret); 145} 146 147fpos_t | 106{ 107 int ret; 108 int serrno; 109 110 if (fp->_flags & __SAPP) { 111 serrno = errno; 112 if (_sseek(fp, (fpos_t)0, SEEK_END) == -1 && 113 (fp->_flags & __SOPT)) --- 10 unchanged lines hidden (view full) --- 124 fp->_flags &= ~__SOFF; 125 126 } else if (ret < 0) 127 fp->_flags &= ~__SOFF; 128 return (ret); 129} 130 131fpos_t |
148_sseek(fp, offset, whence) 149 FILE *fp; 150 fpos_t offset; 151 int whence; | 132_sseek(FILE *fp, fpos_t offset, int whence) |
152{ 153 fpos_t ret; 154 int serrno, errret; 155 156 serrno = errno; 157 errno = 0; 158 ret = (*fp->_seek)(fp->_cookie, offset, whence); 159 errret = errno; --- 28 unchanged lines hidden --- | 133{ 134 fpos_t ret; 135 int serrno, errret; 136 137 serrno = errno; 138 errno = 0; 139 ret = (*fp->_seek)(fp->_cookie, offset, whence); 140 errret = errno; --- 28 unchanged lines hidden --- |