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- /*
- * Copyright (c) 2003 Gunnar Ritter
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute
- * it freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- * claim that you wrote the original software. If you use this software
- * in a product, an acknowledgment in the product documentation would be
- * appreciated but is not required.
- *
- * 2. Altered source versions must be plainly marked as such, and must not be
- * misrepresented as being the original software.
- *
- * 3. This notice may not be removed or altered from any source distribution.
- */
- /* Sccsid @(#)ib_read.c 1.2 (gritter) 4/17/03 */
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <unistd.h>
- #include <string.h>
- #include <errno.h>
- #include <stdlib.h>
- #include "iblok.h"
- int
- ib_read(struct iblok *ip)
- {
- ssize_t sz;
- do {
- if ((sz = read(ip->ib_fd, ip->ib_blk, ip->ib_blksize)) > 0) {
- ip->ib_endoff += sz;
- ip->ib_cur = ip->ib_blk;
- ip->ib_end = &ip->ib_blk[sz];
- return *ip->ib_cur++ & 0377;
- }
- } while (sz < 0 && errno == EINTR);
- if (sz < 0)
- ip->ib_errno = errno;
- ip->ib_cur = ip->ib_end = NULL;
- return EOF;
- }
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