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Diffstat (limited to 'contrib/global/lib/strop.c')
-rw-r--r-- | contrib/global/lib/strop.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/contrib/global/lib/strop.c b/contrib/global/lib/strop.c new file mode 100644 index 000000000000..b024abca8371 --- /dev/null +++ b/contrib/global/lib/strop.c @@ -0,0 +1,121 @@ +/* + * 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 <stdlib.h> +#include <string.h> + +#include "die.h" +#include "strop.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(void) +{ + 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(void) +{ + opened = 0; + /* + * doesn't free area in current implementation. + */ + return sbuf; +} |