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-rw-r--r--contrib/global/lib/strop.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/contrib/global/lib/strop.c b/contrib/global/lib/strop.c
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+/*
+ * Copyright (c) 1996, 1997 Shigio Yamaguchi. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Shigio Yamaguchi.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * strop.c 20-Oct-97
+ *
+ */
+#include "strop.h"
+#include "die.h"
+/*
+ * usage: string buffer
+ *
+ * stropen();
+ * for (s = string; *s; s++)
+ * strputc(*s);
+ * s = strclose();
+ */
+#define EXPANDSIZE 80
+static char *sbuf;
+static char *endp;
+static char *curp;
+static int sbufsize;
+static int opened;
+
+void
+stropen()
+{
+ if (opened)
+ die("nested call to stropen.");
+ opened = 1;
+ /*
+ * allocate initial buffer.
+ */
+ if (!sbuf)
+ if (!(sbuf = (char *)malloc(sbufsize + 1)))
+ die("short of memory.");
+ curp = sbuf;
+ endp = sbuf + sbufsize;
+ *curp = 0;
+}
+void
+strputs(s)
+char *s;
+{
+ int length = strlen(s);
+
+ strnputs(s, length);
+}
+void
+strnputs(s, length)
+char *s;
+int length;
+{
+ if (curp + length > endp) {
+ int count = curp - sbuf;
+
+ sbufsize += (length > EXPANDSIZE) ? length : EXPANDSIZE;
+ if (!(sbuf = (char *)realloc(sbuf, sbufsize + 1)))
+ die("short of memory.");
+ curp = sbuf + count;
+ endp = sbuf + sbufsize;
+ }
+ strncpy(curp, s, length);
+ curp += length;
+ *curp = 0;
+}
+void
+strputc(c)
+int c;
+{
+ if (curp + 1 > endp) {
+ int count = curp - sbuf;
+
+ sbufsize += EXPANDSIZE;
+ if (!(sbuf = (char *)realloc(sbuf, sbufsize + 1)))
+ die("short of memory.");
+ curp = sbuf + count;
+ endp = sbuf + sbufsize;
+ }
+ *curp++ = c;
+ *curp = 0;
+}
+char *
+strclose()
+{
+ opened = 0;
+ /*
+ * doesn't free area in current implementation.
+ */
+ return sbuf;
+}
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