diff options
Diffstat (limited to 'sys/cddl/compat/opensolaris/kern/opensolaris_string.c')
-rw-r--r-- | sys/cddl/compat/opensolaris/kern/opensolaris_string.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/cddl/compat/opensolaris/kern/opensolaris_string.c b/sys/cddl/compat/opensolaris/kern/opensolaris_string.c new file mode 100644 index 0000000..cae984f --- /dev/null +++ b/sys/cddl/compat/opensolaris/kern/opensolaris_string.c @@ -0,0 +1,102 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#include <sys/param.h> +#include <sys/string.h> + +#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') + +#define IS_ALPHA(c) \ + (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) + +char * +strchr(const char *s, int c) +{ + char ch; + + ch = c; + for (;; ++s) { + if (*s == ch) + return ((char *)s); + if (*s == '\0') + return (NULL); + } + /* NOTREACHED */ +} + +char * +strrchr(const char *s, int c) +{ + char *save; + char ch; + + ch = c; + for (save = NULL;; ++s) { + if (*s == ch) + save = (char *)s; + if (*s == '\0') + return (save); + } + /* NOTREACHED */ +} + +char * +strpbrk(const char *s, const char *b) +{ + const char *p; + + do { + for (p = b; *p != '\0' && *p != *s; ++p) + ; + if (*p != '\0') + return ((char *)s); + } while (*s++); + + return (NULL); +} + +/* + * Convert a string into a valid C identifier by replacing invalid + * characters with '_'. Also makes sure the string is nul-terminated + * and takes up at most n bytes. + */ +void +strident_canon(char *s, size_t n) +{ + char c; + char *end = s + n - 1; + + if ((c = *s) == 0) + return; + + if (!IS_ALPHA(c) && c != '_') + *s = '_'; + + while (s < end && ((c = *(++s)) != 0)) { + if (!IS_ALPHA(c) && !IS_DIGIT(c) && c != '_') + *s = '_'; + } + *s = 0; +} |