Added mktemp() and friends from FreeBSD - calls not part of the POSIX specs

are currently disabled.
Removed unnecessary grist from source files.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8769 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/posix/stdlib/Jamfile

@@ -1,25 +1,26 @@
 SubDir OBOS_TOP src kernel libroot posix stdlib ;
 
 KernelMergeObject posix_stdlib.o :
-	<$(SOURCE_GRIST)>abs.c
-	<$(SOURCE_GRIST)>atof.c 
-	<$(SOURCE_GRIST)>atoi.c 
-	<$(SOURCE_GRIST)>bsearch.c
-	<$(SOURCE_GRIST)>div.c 
-	<$(SOURCE_GRIST)>env.c
-	<$(SOURCE_GRIST)>exit.c
-	<$(SOURCE_GRIST)>heapsort.c 
-	<$(SOURCE_GRIST)>merge.c
-	<$(SOURCE_GRIST)>multibyte.c 
-	<$(SOURCE_GRIST)>qsort.c 
-	<$(SOURCE_GRIST)>radixsort.c 
-	<$(SOURCE_GRIST)>rand.c 
-	<$(SOURCE_GRIST)>random.c
-	<$(SOURCE_GRIST)>realpath.c
-	<$(SOURCE_GRIST)>strtod.c
-	<$(SOURCE_GRIST)>strtol.c
-	<$(SOURCE_GRIST)>strtoll.c
-	<$(SOURCE_GRIST)>strtoul.c
-	<$(SOURCE_GRIST)>strtoull.c
+	abs.c
+	atof.c 
+	atoi.c 
+	bsearch.c
+	div.c 
+	env.c
+	exit.c
+	heapsort.c 
+	merge.c
+	mktemp.c
+	multibyte.c 
+	qsort.c 
+	radixsort.c 
+	rand.c 
+	random.c
+	realpath.c
+	strtod.c
+	strtol.c
+	strtoll.c
+	strtoul.c
+	strtoull.c
 	: -fPIC -DPIC
 	;

src/kernel/libroot/posix/stdlib/mktemp.c

@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 1987, 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.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <stdint.h>
+
+
+static int _gettemp(char *, int *, int, int);
+
+static const unsigned char padchar[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+
+#if 0
+int
+mkstemps(char *path, int slen)
+{
+	int fd;
+	return _gettemp(path, &fd, 0, slen) ? fd : -1;
+}
+#endif
+
+
+int
+mkstemp(char *path)
+{
+	int fd;
+	if (_gettemp(path, &fd, 0, 0))
+		return fd;
+
+	return -1;
+}
+
+
+#if 0
+char *
+mkdtemp(path)
+	char *path;
+{
+	return (_gettemp(path, (int *)NULL, 1, 0) ? path : (char *)NULL);
+}
+#endif
+
+
+char *
+mktemp(char *path)
+{
+	if (_gettemp(path, (int *)NULL, 0, 0))
+		return path;
+
+	return NULL;
+}
+
+
+static int
+_gettemp(char *path, int *doopen, int domkdir, int slen)
+{
+	char *start, *trv, *suffp;
+	char *pad;
+	struct stat sbuf;
+	int rval;
+
+	if (doopen != NULL && domkdir) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	for (trv = path; *trv != '\0'; ++trv)
+		;
+
+	trv -= slen;
+	suffp = trv;
+	--trv;
+	if (trv < path) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	/* Fill space with random characters */
+	while (trv >= path && *trv == 'X') {
+		uint32_t value = rand() % (sizeof(padchar) - 1);
+		*trv-- = padchar[value];
+	}
+	start = trv + 1;
+
+	/*
+	 * check the target directory.
+	 */
+	if (doopen != NULL || domkdir) {
+		for (; trv > path; --trv) {
+			if (*trv == '/') {
+				*trv = '\0';
+				rval = stat(path, &sbuf);
+				*trv = '/';
+				if (rval != 0)
+					return 0;
+				if (!S_ISDIR(sbuf.st_mode)) {
+					errno = ENOTDIR;
+					return 0;
+				}
+				break;
+			}
+		}
+	}
+
+	for (;;) {
+		if (doopen) {
+			if ((*doopen = open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
+				return 1;
+			if (errno != EEXIST)
+				return 0;
+		} else if (domkdir) {
+			if (mkdir(path, 0700) == 0)
+				return 1;
+			if (errno != EEXIST)
+				return 0;
+		} else if (lstat(path, &sbuf))
+			return errno == ENOENT;
+
+		/* If we have a collision, cycle through the space of filenames */
+		for (trv = start;;) {
+			if (*trv == '\0' || trv == suffp)
+				return 0;
+			pad = strchr(padchar, *trv);
+			if (pad == NULL || *++pad == '\0')
+				*trv++ = padchar[0];
+			else {
+				*trv++ = *pad;
+				break;
+			}
+		}
+	}
+
+	/* not reached */
+}