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-rw-r--r--util/cairo-missing/getline.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/util/cairo-missing/getline.c b/util/cairo-missing/getline.c
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+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Red Hat, Inc.
+ * Copyright © 2011 Andrea Canciani
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ *
+ * Authors: Carl Worth <cworth@cworth.org>
+ * Andrea Canciani <ranma42@gmail.com>
+ */
+
+#include "cairo-missing.h"
+
+#ifndef HAVE_GETLINE
+#include "cairo-malloc-private.h"
+
+#define GETLINE_MIN_BUFFER_SIZE 128
+ssize_t
+getline (char **lineptr,
+ size_t *n,
+ FILE *stream)
+{
+ char *line, *tmpline;
+ size_t len, offset;
+ ssize_t ret;
+
+ offset = 0;
+ len = *n;
+ line = *lineptr;
+ if (len < GETLINE_MIN_BUFFER_SIZE) {
+ len = GETLINE_MIN_BUFFER_SIZE;
+ line = NULL;
+ }
+
+ if (line == NULL) {
+ line = (char *) _cairo_malloc (len);
+ if (unlikely (line == NULL))
+ return -1;
+ }
+
+ while (1) {
+ if (offset + 1 == len) {
+ tmpline = (char *) _cairo_realloc_ab (line, len, 2);
+ if (unlikely (tmpline == NULL)) {
+ if (line != *lineptr)
+ free (line);
+ return -1;
+ }
+ len *= 2;
+ line = tmpline;
+ }
+
+ ret = getc (stream);
+ if (ret == -1)
+ break;
+
+ line[offset++] = ret;
+ if (ret == '\n') {
+ ret = offset;
+ break;
+ }
+ }
+
+ line[offset++] = '\0';
+ *lineptr = line;
+ *n = len;
+
+ return ret;
+}
+#undef GETLINE_BUFFER_SIZE
+#endif