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Diffstat (limited to 'db/common/util_arg.c')
-rw-r--r-- | db/common/util_arg.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/db/common/util_arg.c b/db/common/util_arg.c new file mode 100644 index 000000000..f69c153d6 --- /dev/null +++ b/db/common/util_arg.c @@ -0,0 +1,127 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 2001 + * Sleepycat Software. All rights reserved. + */ + +#include "db_config.h" + +#ifndef lint +static const char revid[] = "Id: util_arg.c,v 1.2 2001/10/04 21:11:48 bostic Exp "; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> +#endif + +#include "db_int.h" +#include "common_ext.h" + +static char *__db_strsep __P((char **, const char *)); + +/* + * __db_util_arg -- + * Convert a string into an argc/argv pair. + * + * PUBLIC: int __db_util_arg __P((char *, char *, int *, char ***)); + */ +int +__db_util_arg(arg0, str, argcp, argvp) + char *arg0, *str, ***argvp; + int *argcp; +{ + int n, ret; + char **ap, **argv; + +#define MAXARGS 25 + if ((ret = + __os_malloc(NULL, (MAXARGS + 1) * sizeof(char **), &argv)) != 0) + return (ret); + + ap = argv; + *ap++ = arg0; + for (n = 1; (*ap = __db_strsep(&str, " \t")) != NULL;) + if (**ap != '\0') { + ++ap; + if (++n == MAXARGS) + break; + } + *ap = NULL; + + *argcp = ap - argv; + *argvp = argv; + + return (0); +} + +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. 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 the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + */ +/* + * Get next token from string *stringp, where tokens are possibly-empty + * strings separated by characters from delim. + * + * Writes NULs into the string at *stringp to end tokens. + * delim need not remain constant from call to call. + * On return, *stringp points past the last NUL written (if there might + * be further tokens), or is NULL (if there are definitely no more tokens). + * + * If *stringp is NULL, strsep returns NULL. + */ +static char * +__db_strsep(stringp, delim) + char **stringp; + const char *delim; +{ + const char *spanp; + int c, sc; + char *s, *tok; + + if ((s = *stringp) == NULL) + return (NULL); + for (tok = s;;) { + c = *s++; + spanp = delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + *stringp = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ +} |