aboutsummaryrefslogtreecommitdiff
path: root/e2fsprogs/blkid
diff options
context:
space:
mode:
authorvapier <vapier@69ca8d6d-28ef-0310-b511-8ec308f3f277>2005-06-28 23:50:18 +0000
committervapier <vapier@69ca8d6d-28ef-0310-b511-8ec308f3f277>2005-06-28 23:50:18 +0000
commitc76b8c3e247ef5f0ce9ec99299792a90986eb920 (patch)
tree660202ab4c974731c650b4a633997ccda131eec9 /e2fsprogs/blkid
parent8bbe710b7e23ac570f0524fcd1f89a68cf52cf2d (diff)
downloadbusybox-w32-c76b8c3e247ef5f0ce9ec99299792a90986eb920.tar.gz
busybox-w32-c76b8c3e247ef5f0ce9ec99299792a90986eb920.tar.bz2
busybox-w32-c76b8c3e247ef5f0ce9ec99299792a90986eb920.zip
rip out all the non-linux code and ugly workarounds
git-svn-id: svn://busybox.net/trunk/busybox@10608 69ca8d6d-28ef-0310-b511-8ec308f3f277
Diffstat (limited to 'e2fsprogs/blkid')
-rw-r--r--e2fsprogs/blkid/llseek.c90
1 files changed, 3 insertions, 87 deletions
diff --git a/e2fsprogs/blkid/llseek.c b/e2fsprogs/blkid/llseek.c
index b5dde03cf..82388dd63 100644
--- a/e2fsprogs/blkid/llseek.c
+++ b/e2fsprogs/blkid/llseek.c
@@ -19,70 +19,14 @@
19#if HAVE_UNISTD_H 19#if HAVE_UNISTD_H
20#include <unistd.h> 20#include <unistd.h>
21#endif 21#endif
22#ifdef __MSDOS__
23#include <io.h>
24#endif
25 22
26#include "blkidP.h" 23#include "blkidP.h"
27 24
28#ifdef __linux__ 25#ifdef CONFIG_LFS
29 26# define my_llseek lseek64
30#if defined(HAVE_LSEEK64) && defined(HAVE_LSEEK64_PROTOTYPE)
31
32#define my_llseek lseek64
33
34#elif defined(HAVE_LLSEEK)
35#include <syscall.h>
36
37#ifndef HAVE_LLSEEK_PROTOTYPE
38extern long long llseek(int fd, long long offset, int origin);
39#endif
40
41#define my_llseek llseek
42
43#else /* ! HAVE_LLSEEK */
44
45#if defined(__alpha__) || defined(__ia64__)
46
47#define llseek lseek
48
49#else /* !__alpha__ && !__ia64__*/
50
51#include <linux/unistd.h>
52
53#ifndef __NR__llseek
54#define __NR__llseek 140
55#endif
56
57#ifndef __i386__
58static int _llseek(unsigned int, unsigned long, unsigned long,
59 blkid_loff_t *, unsigned int);
60
61static _syscall5(int, _llseek, unsigned int, fd, unsigned long, offset_high,
62 unsigned long, offset_low, blkid_loff_t *, result,
63 unsigned int, origin)
64#endif
65
66static blkid_loff_t my_llseek(int fd, blkid_loff_t offset, int origin)
67{
68 blkid_loff_t result;
69 int retval;
70
71#ifndef __i386__
72 retval = _llseek(fd, ((unsigned long long) offset) >> 32,
73 ((unsigned long long)offset) & 0xffffffff,
74 &result, origin);
75#else 27#else
76 retval = syscall(__NR__llseek, fd, ((unsigned long long) offset) >> 32, 28# define my_llseek lseek
77 ((unsigned long long)offset) & 0xffffffff,
78 &result, origin);
79#endif 29#endif
80 return (retval == -1 ? (blkid_loff_t) retval : result);
81}
82
83#endif /* __alpha__ || __ia64__ */
84
85#endif /* HAVE_LLSEEK */
86 30
87blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence) 31blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence)
88{ 32{
@@ -109,31 +53,3 @@ blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence)
109 } 53 }
110 return result; 54 return result;
111} 55}
112
113#else /* !linux */
114
115#ifndef EOVERFLOW
116#ifdef EXT2_ET_INVALID_ARGUMENT
117#define EOVERFLOW EXT2_ET_INVALID_ARGUMENT
118#else
119#define EOVERFLOW 112
120#endif
121#endif
122
123blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int origin)
124{
125#if defined(HAVE_LSEEK64) && defined(HAVE_LSEEK64_PROTOTYPE)
126 return lseek64 (fd, offset, origin);
127#else
128 if ((sizeof(off_t) < sizeof(blkid_loff_t)) &&
129 (offset >= ((blkid_loff_t) 1 << ((sizeof(off_t)*8) - 1)))) {
130 errno = EOVERFLOW;
131 return -1;
132 }
133 return lseek(fd, (off_t) offset, origin);
134#endif
135}
136
137#endif /* linux */
138
139