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Diffstat (limited to 'common/stringx.c')
-rw-r--r-- | common/stringx.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/common/stringx.c b/common/stringx.c new file mode 100644 index 0000000..37a3df9 --- /dev/null +++ b/common/stringx.c @@ -0,0 +1,155 @@ +/* + * Copyright (c) 2004, Nate Nielsen + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above + * copyright notice, this list of conditions and the + * following disclaimer. + * * 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. + * * The names of contributors to this software may not be + * used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 + * COPYRIGHT OWNER 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. + * + * + * CONTRIBUTORS + * Nate Nielsen <nielsen@memberwebs.com> + * + */ + +#include <sys/types.h> + +#include <ctype.h> +#include <syslog.h> +#include <stdlib.h> +#include <stdio.h> +#include <strings.h> + +#include "usuals.h" +#include "stringx.h" + +void +remove_cr(char* data) +{ + char* p; + for(p = data; *data; data++, p++) + { + while(*data == '\r') + data++; + *p = *data; + } + + /* Renull terminate */ + *p = 0; +} + +char* +trim_start(const char* data) +{ + while(*data && isspace(*data)) + ++data; + return (char*)data; +} + +void +trim_end(char* data) +{ + char* t = data + strlen(data); + while(t > data && isspace(*(t - 1))) + { + t--; + *t = 0; + } +} + +char* +trim_space(char* data) +{ + data = (char*)trim_start(data); + trim_end(data); + return data; +} + +/* String to bool helper function */ +int strtob(const char* str) +{ + if(strcasecmp(str, "0") == 0 || + strcasecmp(str, "no") == 0 || + strcasecmp(str, "false") == 0 || + strcasecmp(str, "f") == 0 || + strcasecmp(str, "off") == 0) + return 0; + + if(strcasecmp(str, "1") == 0 || + strcasecmp(str, "yes") == 0 || + strcasecmp(str, "true") == 0 || + strcasecmp(str, "t") == 0 || + strcasecmp(str, "on") == 0) + return 1; + + return -1; +} + +size_t +strlcpy(char *dst, const char *src, size_t len) +{ + size_t ret = strlen(dst); + + while (len > 1) { + *dst++ = *src++; + len--; + } + if (len > 0) + *dst = '\0'; + return (ret); +} + +size_t strlcat(char* dst, const char* src, size_t siz) +{ + char* d = dst; + const char* s = src; + size_t n = siz; + size_t dlen; + + /* Find the end of dst and adjust bytes left but don't go past end */ + while(n-- != 0 && *d != '\0') + d++; + dlen = d - dst; + n = siz - dlen; + + if(n == 0) + return dlen + strlen(s); + while(*s != '\0') + { + if(n != 1) + { + *d++ = *s; + n--; + } + + s++; + } + + *d = '\0'; + + return dlen + (s - src); /* count does not include NUL */ +} |