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authorWaldemar Brodkorb <wbx@openadk.org>2014-03-30 15:55:20 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2014-03-30 15:55:20 +0200
commit8aed1fcd443b550c15a21ddbf1b1d3899803120a (patch)
treece7c0a22c1d5ed7d437198b4447a3aa2fd578665 /package/heirloom-cpio/src/ib_getlin.c
parent12c9d74bb923174117e28186e4a7698e623803a2 (diff)
rework hosttools building, add tools into package stuff
Diffstat (limited to 'package/heirloom-cpio/src/ib_getlin.c')
-rw-r--r--package/heirloom-cpio/src/ib_getlin.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/package/heirloom-cpio/src/ib_getlin.c b/package/heirloom-cpio/src/ib_getlin.c
new file mode 100644
index 000000000..ddee226b4
--- /dev/null
+++ b/package/heirloom-cpio/src/ib_getlin.c
@@ -0,0 +1,78 @@
+/*
+ * 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_getlin.c 1.2 (gritter) 4/17/03 */
+
+#include <string.h>
+#include <stdlib.h>
+#include "iblok.h"
+
+size_t
+ib_getlin(struct iblok *ip, char **line, size_t *alcd,
+ void *(*reallc)(void *, size_t))
+{
+ char *nl;
+ size_t sz, llen = 0, nllen;
+
+ for (;;) {
+ if (ip->ib_cur >= ip->ib_end) {
+ if (ip->ib_incompl) {
+ ip->ib_incompl = 0;
+ return 0;
+ }
+ if (ib_read(ip) == EOF) {
+ if (llen) {
+ ip->ib_incompl++;
+ (*line)[llen] = '\0';
+ return llen;
+ } else
+ return 0;
+ }
+ /*
+ * ib_read() advances ib_cur since *ib_cur++ gives
+ * better performance than *++ib_cur for ib_get().
+ * Go back again.
+ */
+ ip->ib_cur--;
+ }
+ sz = ip->ib_end - ip->ib_cur;
+ if ((nl = memchr(ip->ib_cur, '\n', sz)) != NULL) {
+ sz = nl - ip->ib_cur + 1;
+ if ((nllen = llen + sz + 1) > *alcd) {
+ *line = reallc(*line, nllen);
+ *alcd = nllen;
+ }
+ memcpy(&(*line)[llen], ip->ib_cur, sz);
+ (*line)[llen + sz] = '\0';
+ ip->ib_cur = nl + 1;
+ return llen + sz;
+ }
+ if ((nllen = llen + sz + 1) > *alcd) {
+ *line = reallc(*line, nllen);
+ *alcd = nllen;
+ }
+ memcpy(&(*line)[llen], ip->ib_cur, sz);
+ llen += sz;
+ ip->ib_cur = ip->ib_end;
+ }
+ /*NOTREACHED*/
+ return 0;
+}