diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/common/pread_write.c | 112 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/pread_write.c | 117 | ||||
| -rw-r--r-- | libc/sysdeps/linux/xtensa/pread_write.c | 112 |
3 files changed, 0 insertions, 341 deletions
diff --git a/libc/sysdeps/linux/common/pread_write.c b/libc/sysdeps/linux/common/pread_write.c index 089ee934d..48fe7dd4b 100644 --- a/libc/sysdeps/linux/common/pread_write.c +++ b/libc/sysdeps/linux/common/pread_write.c @@ -83,115 +83,3 @@ ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) weak_alias(__libc_pwrite64,pwrite64) # endif /* __UCLIBC_HAS_LFS__ */ #endif /* __NR_pwrite */ - -#if ! defined __NR_pread || ! defined __NR_pwrite - -static ssize_t __fake_pread_write(int fd, void *buf, - size_t count, off_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek(fd, 0, SEEK_CUR)) == (off_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek(fd, offset, SEEK_SET) == (off_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. If this fails we - * have to return this as an error. */ - save_errno = errno; - if (lseek(fd, old_offset, SEEK_SET) == (off_t) -1) - { - if (result == -1) - __set_errno(save_errno); - return -1; - } - __set_errno(save_errno); - return(result); -} - -# ifdef __UCLIBC_HAS_LFS__ - -static ssize_t __fake_pread_write64(int fd, void *buf, - size_t count, off64_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off64_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek64(fd, 0, SEEK_CUR)) == (off64_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek64(fd, offset, SEEK_SET) == (off64_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. */ - save_errno = errno; - if (lseek64(fd, old_offset, SEEK_SET) == (off64_t) -1) { - if (result == -1) - __set_errno (save_errno); - return -1; - } - __set_errno (save_errno); - return result; -} -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! defined __NR_pread || ! defined __NR_pwrite */ - -#ifndef __NR_pread -ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) -{ - return __fake_pread_write(fd, buf, count, offset, 0); -} -weak_alias(__libc_pread,pread) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) -{ - return __fake_pread_write64(fd, buf, count, offset, 0); -} -weak_alias(__libc_pread64,pread64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pread */ - -#ifndef __NR_pwrite -ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) -{ - /* we won't actually be modifying the buffer, - *just cast it to get rid of warnings */ - return __fake_pread_write(fd, (void*)buf, count, offset, 1); -} -weak_alias(__libc_pwrite,pwrite) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) -{ - return __fake_pread_write64(fd, (void*)buf, count, offset, 1); -} -weak_alias(__libc_pwrite64,pwrite64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pwrite */ diff --git a/libc/sysdeps/linux/powerpc/pread_write.c b/libc/sysdeps/linux/powerpc/pread_write.c index 23f256f6d..92a184c3d 100644 --- a/libc/sysdeps/linux/powerpc/pread_write.c +++ b/libc/sysdeps/linux/powerpc/pread_write.c @@ -77,120 +77,3 @@ ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) weak_alias(__libc_pwrite64,pwrite64) # endif /* __UCLIBC_HAS_LFS__ */ #endif /* __NR_pwrite */ - - - -#if ! defined __NR_pread || ! defined __NR_pwrite - -static ssize_t __fake_pread_write(int fd, void *buf, - size_t count, off_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek(fd, 0, SEEK_CUR)) == (off_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek (fd, offset, SEEK_SET) == (off_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. If this fails we - * have to return this as an error. */ - save_errno = errno; - if (lseek(fd, old_offset, SEEK_SET) == (off_t) -1) - { - if (result == -1) - __set_errno(save_errno); - return -1; - } - __set_errno(save_errno); - return(result); -} - -# ifdef __UCLIBC_HAS_LFS__ - -static ssize_t __fake_pread_write64(int fd, void *buf, - size_t count, off64_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off64_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek64(fd, 0, SEEK_CUR)) == (off64_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek64(fd, offset, SEEK_SET) == (off64_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. */ - save_errno = errno; - if (lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1) { - if (result == -1) - __set_errno (save_errno); - return -1; - } - __set_errno (save_errno); - return result; -} -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! defined __NR_pread || ! defined __NR_pwrite */ - -#ifndef __NR_pread -ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset); -ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) -{ - return(__fake_pread_write(fd, buf, count, offset, 0)); -} -weak_alias(__libc_pread,pread) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset); -ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) -{ - return(__fake_pread_write64(fd, buf, count, offset, 0)); -} -weak_alias(__libc_pread64,pread64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pread */ - - -#ifndef __NR_pwrite -ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset); -ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) -{ - return(__fake_pread_write(fd, (void*)buf, count, offset, 1)); -} -weak_alias(__libc_pwrite,pwrite) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset); -ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) -{ - return(__fake_pread_write64(fd, (void*)buf, count, offset, 1)); -} -weak_alias(__libc_pwrite64,pwrite64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pwrite */ diff --git a/libc/sysdeps/linux/xtensa/pread_write.c b/libc/sysdeps/linux/xtensa/pread_write.c index bcf7dee9c..e8b39e9cf 100644 --- a/libc/sysdeps/linux/xtensa/pread_write.c +++ b/libc/sysdeps/linux/xtensa/pread_write.c @@ -89,115 +89,3 @@ ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) weak_alias(__libc_pwrite64,pwrite64) # endif /* __UCLIBC_HAS_LFS__ */ #endif /* __NR_pwrite */ - -#if ! defined __NR_pread || ! defined __NR_pwrite - -static ssize_t __fake_pread_write(int fd, void *buf, - size_t count, off_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek(fd, 0, SEEK_CUR)) == (off_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek(fd, offset, SEEK_SET) == (off_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. If this fails we - * have to return this as an error. */ - save_errno = errno; - if (lseek(fd, old_offset, SEEK_SET) == (off_t) -1) - { - if (result == -1) - __set_errno(save_errno); - return -1; - } - __set_errno(save_errno); - return(result); -} - -# ifdef __UCLIBC_HAS_LFS__ - -static ssize_t __fake_pread_write64(int fd, void *buf, - size_t count, off64_t offset, int do_pwrite) -{ - int save_errno; - ssize_t result; - off64_t old_offset; - - /* Since we must not change the file pointer preserve the - * value so that we can restore it later. */ - if ((old_offset=lseek64(fd, 0, SEEK_CUR)) == (off64_t) -1) - return -1; - - /* Set to wanted position. */ - if (lseek64(fd, offset, SEEK_SET) == (off64_t) -1) - return -1; - - if (do_pwrite == 1) { - /* Write the data. */ - result = write(fd, buf, count); - } else { - /* Read the data. */ - result = read(fd, buf, count); - } - - /* Now we have to restore the position. */ - save_errno = errno; - if (lseek64(fd, old_offset, SEEK_SET) == (off64_t) -1) { - if (result == -1) - __set_errno (save_errno); - return -1; - } - __set_errno (save_errno); - return result; -} -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! defined __NR_pread || ! defined __NR_pwrite */ - -#ifndef __NR_pread -ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) -{ - return __fake_pread_write(fd, buf, count, offset, 0); -} -weak_alias(__libc_pread,pread) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) -{ - return __fake_pread_write64(fd, buf, count, offset, 0); -} -weak_alias(__libc_pread64,pread64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pread */ - -#ifndef __NR_pwrite -ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) -{ - /* we won't actually be modifying the buffer, - *just cast it to get rid of warnings */ - return __fake_pread_write(fd, (void*)buf, count, offset, 1); -} -weak_alias(__libc_pwrite,pwrite) - -# ifdef __UCLIBC_HAS_LFS__ -ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) -{ - return __fake_pread_write64(fd, (void*)buf, count, offset, 1); -} -weak_alias(__libc_pwrite64,pwrite64) -# endif /* __UCLIBC_HAS_LFS__ */ -#endif /* ! __NR_pwrite */ |