1/*-
2 * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/lib/libc/stdio/getdelim.c 190773 2009-04-06 13:50:04Z das $");
29
30#include "namespace.h"
31#include <sys/param.h>
32#include <errno.h>
33#include <limits.h>
34#include <stdio.h>
35#include <stdlib.h>
36#include <string.h>

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115 FLOCKFILE(fp);
116 ORIENT(fp, -1);
117
118 if (linep == NULL || linecapp == NULL) {
119 errno = EINVAL;
120 goto error;
121 }
122
123 if (*linecapp == 0)
124 *linep = NULL;
125
126 if (fp->_r <= 0 && __srefill(fp)) {
127 /* If fp is at EOF already, we just need space for the NUL. */
128 if (__sferror(fp) || expandtofit(linep, 1, linecapp))
129 goto error;
130 FUNLOCKFILE(fp);
131 (*linep)[0] = '\0';
132 return (-1);
133 }
134
135 linelen = 0;
136 while ((endp = memchr(fp->_p, delim, fp->_r)) == NULL) {
137 if (sappend(linep, &linelen, linecapp, fp->_p, fp->_r))
138 goto error;
139 if (__srefill(fp)) {
140 if (__sferror(fp))
141 goto error;
142 goto done; /* hit EOF */
143 }

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