summaryrefslogtreecommitdiff
path: root/package/heirloom-cpio/src/ib_getw.c
diff options
context:
space:
mode:
Diffstat (limited to 'package/heirloom-cpio/src/ib_getw.c')
-rw-r--r--package/heirloom-cpio/src/ib_getw.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/package/heirloom-cpio/src/ib_getw.c b/package/heirloom-cpio/src/ib_getw.c
new file mode 100644
index 000000000..b7f2e6762
--- /dev/null
+++ b/package/heirloom-cpio/src/ib_getw.c
@@ -0,0 +1,81 @@
+/*
+ * 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_getw.c 1.5 (gritter) 7/16/04 */
+
+#include <stdlib.h>
+#include <string.h>
+#include "iblok.h"
+#include "mbtowi.h"
+
+char *
+ib_getw(struct iblok *ip, wint_t *wc, int *len)
+{
+ size_t rest;
+ int c, i, n;
+
+ i = 0;
+ rest = ip->ib_mend - ip->ib_mcur;
+ if (rest && ip->ib_mcur > ip->ib_mbuf) {
+ do
+ ip->ib_mbuf[i] = ip->ib_mcur[i];
+ while (i++, --rest);
+ } else if (ip->ib_incompl) {
+ ip->ib_incompl = 0;
+ *wc = WEOF;
+ ip->ib_mend = ip->ib_mcur = NULL;
+ return NULL;
+ }
+ if (i == 0) {
+ c = ib_get(ip);
+ if (c == EOF) {
+ *wc = WEOF;
+ ip->ib_mend = ip->ib_mcur = NULL;
+ return NULL;
+ }
+ ip->ib_mbuf[i++] = (char)c;
+ }
+ if (ip->ib_mbuf[0] & 0200) {
+ while (ip->ib_mbuf[i-1] != '\n' && i < ip->ib_mb_cur_max &&
+ ip->ib_incompl == 0) {
+ c = ib_get(ip);
+ if (c != EOF)
+ ip->ib_mbuf[i++] = (char)c;
+ else
+ ip->ib_incompl = 1;
+ }
+ n = mbtowi(wc, ip->ib_mbuf, i);
+ if (n < 0) {
+ *len = 1;
+ *wc = WEOF;
+ } else if (n == 0) {
+ *len = 1;
+ *wc = '\0';
+ } else
+ *len = n;
+ } else {
+ *wc = ip->ib_mbuf[0];
+ *len = n = 1;
+ }
+ ip->ib_mcur = &ip->ib_mbuf[*len];
+ ip->ib_mend = &ip->ib_mcur[i - *len];
+ return ip->ib_mbuf;
+}