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(read, pread, pread64, readlink, getcwd, getwd): Change macros into extern inline functions. (__read_alias, __pread_alias, __pread64_alias, __readlink_alias, __getcwd_alias, __getwd_alias): New prototypes.

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This commit is contained in:
Ulrich Drepper 2005-03-19 00:06:22 +00:00
parent 959184846b
commit 60bd9f7c41
1 changed files with 74 additions and 32 deletions
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106
posix/bits/unistd.h
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@ -23,37 +23,58 @@
extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
size_t __buflen) __wur;
#define read(fd, buf, nbytes) \
(__bos0 (buf) != (size_t) -1 \
&& (!__builtin_constant_p (nbytes) || (nbytes) > __bos0 (buf)) \
? __read_chk (fd, buf, nbytes, __bos0 (buf)) \
: read (fd, buf, nbytes))
extern ssize_t __REDIRECT (__read_alias, (int __fd, void *__buf,
size_t __nbytes), read) __wur;
extern __inline __wur ssize_t
read (int __fd, void *__buf, size_t __nbytes)
{
if (__bos0 (__buf) != (size_t) -1
&& (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
return __read_chk (__fd, __buf, __nbytes, __bos0 (__buf));
return __read_alias (__fd, __buf, __nbytes);
}
#ifdef __USE_UNIX98
extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
__off_t __offset, size_t __bufsize) __wur;
extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset, size_t __bufsize) __wur;
extern ssize_t __REDIRECT (__pread_alias,
(int __fd, void *__buf, size_t __nbytes,
__off_t __offset), pread) __wur;
extern ssize_t __REDIRECT (__pread64_alias,
(int __fd, void *__buf, size_t __nbytes,
__off64_t __offset), pread64) __wur;
# ifndef __USE_FILE_OFFSET64
# define pread(fd, buf, nbytes, offset) \
(__bos0 (buf) != (size_t) -1 \
&& (!__builtin_constant_p (nbytes) || (nbytes) > __bos0 (buf)) \
? __pread64_chk (fd, buf, nbytes, offset, __bos0 (buf)) \
: pread64 (fd, buf, nbytes, offset))
extern __inline __wur ssize_t
pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
{
if (__bos0 (__buf) != (size_t) -1
&& (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
return __pread_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
return __pread_alias (__fd, __buf, __nbytes, __offset);
}
# else
# define pread(fd, buf, nbytes, offset) \
(__bos0 (buf) != (size_t) -1 \
&& (!__builtin_constant_p (nbytes) || (nbytes) > __bos0 (buf)) \
? __pread_chk (fd, buf, nbytes, offset, __bos0 (buf)) \
: pread (fd, buf, nbytes, offset))
extern __inline __wur ssize_t
pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
{
if (__bos0 (__buf) != (size_t) -1
&& (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
return __pread64_alias (__fd, __buf, __nbytes, __offset);
}
# endif
# ifdef __USE_LARGEFILE64
# define pread64(fd, buf, nbytes, offset) \
(__bos0 (buf) != (size_t) -1 \
&& (!__builtin_constant_p (nbytes) || (nbytes) > __bos0 (buf)) \
? __pread64_chk (fd, buf, nbytes, offset, __bos0 (buf)) \
: pread64 (fd, buf, nbytes, offset))
extern __inline __wur ssize_t
pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
{
if (__bos0 (__buf) != (size_t) -1
&& (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
return __pread64_alias (__fd, __buf, __nbytes, __offset);
}
# endif
#endif
@ -62,23 +83,44 @@ extern int __readlink_chk (__const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen)
__THROW __nonnull ((1, 2)) __wur;
# define readlink(path, buf, len) \
(__bos (buf) != (size_t) -1 \
&& (!__builtin_constant_p (len) || (len) > __bos (buf)) \
? __readlink_chk (path, buf, len, __bos (buf)) \
: readlink (path, buf, len))
extern int __REDIRECT_NTH (__readlink_alias,
(__const char *__restrict __path,
char *__restrict __buf, size_t __len), readlink)
__nonnull ((1, 2)) __wur;
extern __inline __nonnull ((1, 2)) __wur int
__NTH (readlink (__const char *__restrict __path, char *__restrict __buf,
size_t __len))
{
if (__bos (__buf) != (size_t) -1
&& (!__builtin_constant_p (__len) || __len > __bos (__buf)))
return __readlink_chk (__path, __buf, __len, __bos (__buf));
return __readlink_alias (__path, __buf, __len);
}
#endif
extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
__THROW __wur;
#define getcwd(buf, size) \
(__bos (buf) != (size_t) -1 \
&& (!__builtin_constant_p (size) || (size) > __bos (buf)) \
? __getcwd_chk (buf, size, buflen) : getcwd (buf, size))
extern char *__REDIRECT_NTH (__getcwd_alias,
(char *__buf, size_t __size), getcwd) __wur;
extern __inline __wur char *
__NTH (getcwd (char *__buf, size_t __size))
{
if (__bos (__buf) != (size_t) -1
&& (!__builtin_constant_p (__size) || __size > __bos (__buf)))
return __getcwd_chk (__buf, __size, __bos (__buf));
return __getcwd_alias (__buf, __size);
}
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
extern char *__getwd_chk (char *__buf, size_t buflen)
__THROW __nonnull ((1)) __attribute_deprecated__ __wur;
#define getwd(buf) \
(__bos (buf) != (size_t) -1 ? __getwd_chk (buf, buflen) : getwd (buf))
__THROW __nonnull ((1)) __wur;
extern char *__REDIRECT_NTH (__getwd_alias, (char *__buf), getwd)
__nonnull ((1)) __wur;
extern __inline __nonnull ((1)) __attribute_deprecated__ __wur char *
__NTH (getwd (char *__buf))
{
if (__bos (__buf) != (size_t) -1)
return __getwd_chk (__buf, __bos (__buf));
return __getwd_alias (__buf);
}
#endif