Add missing common files

5 files changed, 861 insertions, 0 deletions

diff --git a/common/compat.c b/common/compat.c
new file mode 100644
index 0000000..c6138d0
--- /dev/null
+++ b/common/compat.c
@@ -0,0 +1,275 @@
+/*
+ * 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 <err.h>
+#include <strings.h>
+
+#include "usuals.h"
+#include "compat.h"
+
+#ifndef HAVE_STRCLN
+
+void
+strcln(char* data, char ch)
+{
+    char* p;
+    for(p = data; *data; data++, p++)
+    {
+        while(*data == ch)
+            data++;
+        *p = *data;
+    }
+
+    /* Renull terminate */
+    *p = 0;
+}
+
+#endif /* HAVE_STRCLN */
+
+#ifndef HAVE_STRBTRIM
+
+char*
+strbtrim(const char* data)
+{
+    while(*data && isspace(*data))
+        ++data;
+    return (char*)data;
+}
+
+#endif /* HAVE_STRBTRIM */
+
+#ifndef HAVE_STRETRIM
+
+void
+stretrim(char* data)
+{
+    char* t = data + strlen(data);
+    while(t > data && isspace(*(t - 1)))
+    {
+        t--;
+        *t = 0;
+    }
+}
+
+#endif /* HAVE_STRETRIM */
+
+#ifndef HAVE_STRTRIM
+
+char*
+strtrim(char* data)
+{
+    data = (char*)strbtrim(data);
+    stretrim(data);
+    return data;
+}
+
+#endif /* HAVE_STRTRIM */
+
+#ifndef HAVE_STRTOB
+
+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;
+}
+
+#endif /* HAVE_STRTOB */
+
+
+#ifndef HAVE_STRLCPY
+
+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);
+}
+
+#endif /* HAVE_STRLCPY */
+
+#ifndef HAVE_STRLCAT
+
+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;
+
+    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 */
+}
+
+#endif /* HAVE_STRLCAT */
+
+#ifndef HAVE_ATEXITV
+
+typedef void (*voidfunc)(void*);
+typedef struct _exit_stack
+{
+    voidfunc func;
+    void* data;
+
+    /* We have a list of these beauties */
+    struct _exit_stack* next;
+}
+exit_stack;
+
+/* Our exit stack */
+static exit_stack* atexits = NULL;
+static int atexit_registered = 0;
+
+static void
+atexit_do_stack(void)
+{
+    exit_stack* next;
+    for(; atexits; atexits = next)
+    {
+        next = atexits->next;
+        (atexits->func)(atexits->data);
+        free(atexits);
+    }
+}
+
+void
+atexitv(voidfunc func, void* data)
+{
+    exit_stack* ae;
+
+    ASSERT(func);
+
+    ae = (exit_stack*)calloc(1, sizeof(exit_stack));
+    if(ae)
+    {
+        ae->func = func;
+        ae->data = data;
+        ae->next = atexits;
+        atexits = ae;
+
+        if(!atexit_registered)
+            atexit(atexit_do_stack);
+    }
+}
+
+#endif /* HAVE_ATEXITV */
+
+
+#ifndef HAVE_XCALLOC
+
+void*
+xcalloc(size_t size)
+{
+    register void* value = calloc(1, size);
+    if(value == NULL)
+        errx(1, "out of memory");
+    return value;
+}
+
+#endif /* HAVE_XCALLOC */
+
+
+#ifndef HAVE_STRLWR
+
+void strlwr(char* data)
+{
+    while(*data)
+    {
+        *data = tolower(*data);
+        data++;
+    }
+}
+
+#endif /* HAVE_STRLWR */
+
+
+#ifndef HAVE_STRUPR
+
+void strupr(char* data)
+{
+    while(*data)
+    {
+        *data = toupper(*data);
+        data++;
+    }
+}
+
+#endif /* HAVE_STRUPR */
diff --git a/common/compat.h b/common/compat.h
new file mode 100644
index 0000000..8aaef66
--- /dev/null
+++ b/common/compat.h
@@ -0,0 +1,88 @@
+/*
+ * 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>
+ *
+ */
+
+#ifndef __COMPAT_H__
+#define __COMPAT_H__
+
+#include "config.h"
+
+#ifndef HAVE_STRLCPY
+size_t strlcpy(char *dst, const char *src, size_t len);
+#endif
+
+#ifndef HAVE_STRLCAT
+size_t strlcat(char* dst, const char* src, size_t siz);
+#endif
+
+#ifndef HAVE_STRCLN
+void strcln(char* data, char ch);
+#endif
+
+#ifndef HAVE_STRBTRIM
+char* strbtrim(const char* data);
+#endif
+
+#ifndef HAVE_STRETRIM
+void stretrim(char* data);
+#endif
+
+#ifndef HAVE_STRTRIM
+char* strtrim(char* data);
+#endif
+
+#ifndef HAVE_STRTOB
+int strtob(const char* str);
+#endif
+
+#ifndef HAVE_ATEXITV
+void atexitv(void (*func)(void*), void* data);
+#endif
+
+#ifndef HAVE_XCALLOC
+void* xcalloc(size_t size);
+#endif
+
+#ifndef HAVE_STRLWR
+void strlwr(char* data);
+#endif
+
+#ifndef HAVE_STRUPR
+void strupr(char* data);
+#endif
+
+#endif /* __COMPAT_H__ */
diff --git a/common/config-parser.c b/common/config-parser.c
new file mode 100644
index 0000000..36c8ba9
--- /dev/null
+++ b/common/config-parser.c
@@ -0,0 +1,366 @@
+/*
+ * Copyright (c) 2005, 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 "usuals.h"
+#include <errno.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <stdarg.h>
+#include <dirent.h>
+
+#include "config-parser.h"
+
+static void
+errmsg(const char* filename, void* data, const char* msg, ...)
+{
+    #define MAX_MSGLEN  1024
+    char buf[MAX_MSGLEN];
+    va_list ap;
+
+    va_start(ap, msg);
+    vsnprintf(buf, MAX_MSGLEN, msg, ap);
+    buf[MAX_MSGLEN - 1] = 0;
+    cfg_error(filename, buf, data);
+    va_end(ap);
+}
+
+/* -----------------------------------------------------------------------------
+ * CONFIG PARSER
+ */
+
+static char*
+read_config_file(const char** configfile, void* data)
+{
+    char* config = NULL;
+	char* newfilename;
+    FILE* f = NULL;
+    long len;
+	int flen;
+
+    ASSERT(configfile);
+
+    f = fopen(*configfile, "r");
+    if(f == NULL)
+    {
+        errmsg(*configfile, data, "couldn't open config file: %s", *configfile);
+        return NULL;
+    }
+
+    /* Figure out size */
+    if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1)
+    {
+        errmsg(*configfile, data, "couldn't seek config file: %s", *configfile);
+        return NULL;
+    }
+
+	flen = strlen(*configfile);
+    if((config = (char*)malloc(len + 4 + flen)) == NULL)
+    {
+        errmsg(*configfile, data, "out of memory");
+        return NULL;
+    }
+
+    /* And read in one block */
+    if(fread(config, 1, len, f) != len)
+    {
+        errmsg(*configfile, data, "couldn't read config file: %s", *configfile);
+        return NULL;
+    }
+
+    fclose(f);
+
+    /* Null terminate the data */
+    config[len] = '\n';
+    config[len + 1] = 0;
+
+    /* Remove nasty dos line endings */
+    strcln(config, '\r');
+
+	/* Persistent allocation for filename */
+	newfilename = config + len + 2;
+	strcpy(newfilename, *configfile);
+    *configfile = newfilename;
+
+    return config;
+}
+
+int
+cfg_parse_file(const char* filename, void* data, char** memory)
+{
+    char* name = NULL;
+    char* value = NULL;
+    char* config;
+    char* next;
+    char* header;
+    int ret = -1;
+    char* p;
+    char* t;
+
+    ASSERT(filename);
+
+    config = read_config_file(&filename, data);
+    if(!config)
+        goto finally;
+
+    next = config;
+
+    /* Go through lines and process them */
+    while((t = strchr(next, '\n')) != NULL)
+    {
+        *t = 0;
+        p = next; /* Do this before cleaning below */
+        next = t + 1;
+
+        t = strbtrim(p);
+
+        /* Continuation line (had spaces at start) */
+        if(p < t && *t)
+        {
+            if(!value)
+            {
+                errmsg(filename, data, "%s: invalid continuation in config: %s",
+                       filename, p);
+                goto finally;
+            }
+
+            /* Calculate the end of the current value */
+            t = value + strlen(value);
+            ASSERT(t < p);
+
+            /* Continuations are separated by spaces */
+            *t = ' ';
+            t++;
+
+            continue;
+        }
+
+        /* No continuation hand off value if necessary */
+        if(name && value)
+        {
+            if(cfg_value(filename, header, name, value, data) == -1)
+                goto finally;
+        }
+
+        name = NULL;
+        value = NULL;
+
+        /* Empty lines / comments at start / comments without continuation */
+        if(!*t || *p == '#')
+            continue;
+
+        /* A header */
+        if(*p == '[')
+        {
+            t = p + strcspn(p, "]");
+            if(!*t || t == p + 1)
+            {
+                errmsg(filename, data, "%s: invalid config header: %s",
+                       filename, p);
+                goto finally;
+            }
+
+            *t = 0;
+            header = strtrim(p + 1);
+            continue;
+        }
+
+        /* Look for the break between name = value on the same line */
+        t = p + strcspn(p, ":=");
+        if(!*t)
+        {
+            errmsg(filename, data, "%s: invalid config line: %s",
+                   filename, p);
+            goto finally;
+        }
+
+        /* Null terminate and split value part */
+        *t = 0;
+        t++;
+
+        name = strtrim(p);
+        value = strtrim(t);
+    }
+
+    if(name && value)
+    {
+        if(cfg_value(filename, header, name, value, data) == -1)
+            goto finally;
+    }
+
+    ret = 0;
+
+
+finally:
+
+    if(!memory || ret != 0)
+        free(config);
+    else if(memory)
+        *memory = config;
+
+    return ret;
+}
+
+static int
+parse_dir_internal(const char* subdir, void* data)
+{
+    char path[MAXPATHLEN];
+    struct dirent* dire;
+    char* memory;
+    DIR* dir;
+    int r;
+
+    /* Open specified or current directory */
+    dir = opendir(subdir ? subdir : ".");
+    if(!dir)
+    {
+        errmsg(NULL, data, "couldn't list config directory: %s",
+               subdir ? subdir : ".");
+        return -1;
+    }
+
+    while((dire = readdir(dir)) != NULL)
+    {
+        /* Build a file path to this entry */
+        if(subdir)
+        {
+            strlcpy(path, subdir, MAXPATHLEN);
+            strlcat(path, "/", MAXPATHLEN);
+            strlcat(path, dire->d_name, MAXPATHLEN);
+        }
+        else
+            strlcpy(path, dire->d_name, MAXPATHLEN);
+
+        /* Descend into each sub directory */
+        if(dire->d_type == DT_DIR)
+        {
+            /* No hidden or dot directories */
+            if(dire->d_name[0] == '.')
+                continue;
+
+            r = parse_dir_internal(path, data);
+            if(r < 0)
+                return r;
+
+            continue;
+        }
+
+        if(dire->d_type != DT_REG && dire->d_type != DT_LNK)
+            continue;
+
+        /* Build a happy path name */
+        cfg_parse_file(path, data, &memory);
+
+        /* We call it with blanks after files */
+        if(cfg_value(path, NULL, NULL, NULL, data) == -1)
+            break;
+
+        /* Keep the memory around */
+        if(memory)
+            atexitv(free, memory);
+    }
+
+    closedir(dir);
+
+    return 0;
+}
+
+int
+cfg_parse_dir(const char* dirname, void* data)
+{
+    char olddir[MAXPATHLEN];
+    int ret;
+
+    ASSERT(dirname != NULL);
+
+    if(!getcwd(olddir, MAXPATHLEN))
+        olddir[0] = 0;
+
+    if(chdir(dirname) == -1)
+    {
+        errmsg(NULL, data, "couldn't list config directory: %s", dirname);
+        return -1;
+    }
+
+    ret = parse_dir_internal(NULL, data);
+
+    if(olddir[0])
+        chdir(olddir);
+
+    return ret;
+}
+
+const char*
+cfg_parse_uri (char *uri, char** scheme, char** host, char** user, char** path)
+{
+    char* t;
+
+    *scheme = NULL;
+    *host = NULL;
+    *user = NULL;
+    *path = NULL;
+
+    *scheme = strsep(&uri, ":");
+    if(uri == NULL || (uri[0] != '/' && uri[1] != '/'))
+        return "invalid uri";
+
+    uri += 2;
+    *host = strsep(&uri, "/");
+    if(*host[0])
+    {
+        /* Parse the community out from the host */
+        t = strchr(*host, '@');
+        if(t)
+        {
+            *t = 0;
+            *user = *host;
+            *host = t + 1;
+        }
+    }
+
+    if(!*host[0])
+        return "invalid uri: no host name found";
+
+    if(!uri || !uri[0] || !uri[1])
+        return "invalid uri: no path found";
+
+    *path = uri;
+
+    while((*path)[0] == '/')
+        (*path)++;
+
+    return NULL;
+}
diff --git a/common/config-parser.h b/common/config-parser.h
new file mode 100644
index 0000000..11949a2
--- /dev/null
+++ b/common/config-parser.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2005, 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>
+ */
+
+#ifndef __CONFIG_PARSER_H__
+#define __CONFIG_PARSER_H__
+
+/* Callbacks must be defined by the caller */
+extern int cfg_value(const char* filename, const char* header, const char* name,
+                     char* value, void* data);
+extern int cfg_error(const char* filename, const char* errmsg, void* data);
+
+/* Calling these will call the callbacks above */
+int cfg_parse_dir(const char* dirname, void* data);
+int cfg_parse_file(const char* filename, void* data, char** memory);
+
+/* A helper for parsing URIs */
+const char* cfg_parse_uri (char *uri, char** scheme, char** host, char** user, char** path);
+
+#endif /* __CONFIG_PARSER_H__ */
diff --git a/common/usuals.h b/common/usuals.h
new file mode 100644
index 0000000..5fece3f
--- /dev/null
+++ b/common/usuals.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2005, 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>
+ *
+ */
+
+#ifndef __USUALS_H__
+#define __USUALS_H__
+
+#include <sys/types.h>
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include "compat.h"
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef max
+#define max(a,b)  (((a) > (b)) ? (a) : (b))
+#endif
+
+#ifndef min
+#define min(a,b)  (((a) < (b)) ? (a) : (b))
+#endif
+
+#define countof(x) (sizeof(x) / sizeof(x[0]))
+
+#ifdef _DEBUG
+  #include "assert.h"
+  #define ASSERT(x) assert(x)
+#else
+  #define ASSERT(x)
+#endif
+
+#define KL(s)               ((sizeof(s) - 1) / sizeof(char))
+#define RETURN(x)           { ret = (x); goto finally; }
+
+#endif /* __USUALS_H__ */