Merge branch 'singlereplace' into single

Conflicts:
	source4/configure.ac
	source4/torture/local/config.mk

1 files changed, 616 insertions, 0 deletions

diff --git a/replace/replace.c b/replace/replace.c
new file mode 100644
index 0000000000..98d799b07e
--- /dev/null
+++ b/replace/replace.c
@@ -0,0 +1,616 @@
+/* 
+   Unix SMB/CIFS implementation.
+   replacement routines for broken systems
+   Copyright (C) Andrew Tridgell 1992-1998
+
+     ** NOTE! The following LGPL license applies to the replace
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+
+#include "system/filesys.h"
+#include "system/time.h"
+#include "system/passwd.h"
+#include "system/syslog.h"
+#include "system/locale.h"
+#include "system/wait.h"
+
+void replace_dummy(void);
+void replace_dummy(void) {}
+
+#ifndef HAVE_FTRUNCATE
+ /*******************************************************************
+ftruncate for operating systems that don't have it
+********************************************************************/
+int rep_ftruncate(int f, off_t l)
+{
+#ifdef HAVE_CHSIZE
+      return chsize(f,l);
+#elif defined(F_FREESP)
+      struct  flock   fl;
+
+      fl.l_whence = 0;
+      fl.l_len = 0;
+      fl.l_start = l;
+      fl.l_type = F_WRLCK;
+      return fcntl(f, F_FREESP, &fl);
+#else
+#error "you must have a ftruncate function"
+#endif
+}
+#endif /* HAVE_FTRUNCATE */
+
+
+#ifndef HAVE_STRLCPY
+/* like strncpy but does not 0 fill the buffer and always null 
+   terminates. bufsize is the size of the destination buffer */
+size_t rep_strlcpy(char *d, const char *s, size_t bufsize)
+{
+	size_t len = strlen(s);
+	size_t ret = len;
+	if (bufsize <= 0) return 0;
+	if (len >= bufsize) len = bufsize-1;
+	memcpy(d, s, len);
+	d[len] = 0;
+	return ret;
+}
+#endif
+
+#ifndef HAVE_STRLCAT
+/* like strncat but does not 0 fill the buffer and always null 
+   terminates. bufsize is the length of the buffer, which should
+   be one more than the maximum resulting string length */
+size_t rep_strlcat(char *d, const char *s, size_t bufsize)
+{
+	size_t len1 = strlen(d);
+	size_t len2 = strlen(s);
+	size_t ret = len1 + len2;
+
+	if (len1+len2 >= bufsize) {
+		if (bufsize < (len1+1)) {
+			return ret;
+		}
+		len2 = bufsize - (len1+1);
+	}
+	if (len2 > 0) {
+		memcpy(d+len1, s, len2);
+		d[len1+len2] = 0;
+	}
+	return ret;
+}
+#endif
+
+#ifndef HAVE_MKTIME
+/*******************************************************************
+a mktime() replacement for those who don't have it - contributed by 
+C.A. Lademann <cal@zls.com>
+Corrections by richard.kettlewell@kewill.com
+********************************************************************/
+
+#define  MINUTE  60
+#define  HOUR    60*MINUTE
+#define  DAY             24*HOUR
+#define  YEAR    365*DAY
+time_t rep_mktime(struct tm *t)
+{
+  struct tm       *u;
+  time_t  epoch = 0;
+  int n;
+  int             mon [] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
+  y, m, i;
+
+  if(t->tm_year < 70)
+    return((time_t)-1);
+
+  n = t->tm_year + 1900 - 1;
+  epoch = (t->tm_year - 70) * YEAR + 
+    ((n / 4 - n / 100 + n / 400) - (1969 / 4 - 1969 / 100 + 1969 / 400)) * DAY;
+
+  y = t->tm_year + 1900;
+  m = 0;
+
+  for(i = 0; i < t->tm_mon; i++) {
+    epoch += mon [m] * DAY;
+    if(m == 1 && y % 4 == 0 && (y % 100 != 0 || y % 400 == 0))
+      epoch += DAY;
+    
+    if(++m > 11) {
+      m = 0;
+      y++;
+    }
+  }
+
+  epoch += (t->tm_mday - 1) * DAY;
+  epoch += t->tm_hour * HOUR + t->tm_min * MINUTE + t->tm_sec;
+  
+  if((u = localtime(&epoch)) != NULL) {
+    t->tm_sec = u->tm_sec;
+    t->tm_min = u->tm_min;
+    t->tm_hour = u->tm_hour;
+    t->tm_mday = u->tm_mday;
+    t->tm_mon = u->tm_mon;
+    t->tm_year = u->tm_year;
+    t->tm_wday = u->tm_wday;
+    t->tm_yday = u->tm_yday;
+    t->tm_isdst = u->tm_isdst;
+  }
+
+  return(epoch);
+}
+#endif /* !HAVE_MKTIME */
+
+
+#ifndef HAVE_INITGROUPS
+/****************************************************************************
+ some systems don't have an initgroups call 
+****************************************************************************/
+int rep_initgroups(char *name, gid_t id)
+{
+#ifndef HAVE_SETGROUPS
+	/* yikes! no SETGROUPS or INITGROUPS? how can this work? */
+	errno = ENOSYS;
+	return -1;
+#else /* HAVE_SETGROUPS */
+
+#include <grp.h>
+
+	gid_t *grouplst = NULL;
+	int max_gr = NGROUPS_MAX;
+	int ret;
+	int    i,j;
+	struct group *g;
+	char   *gr;
+	
+	if((grouplst = malloc(sizeof(gid_t) * max_gr)) == NULL) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	grouplst[0] = id;
+	i = 1;
+	while (i < max_gr && ((g = (struct group *)getgrent()) != (struct group *)NULL)) {
+		if (g->gr_gid == id)
+			continue;
+		j = 0;
+		gr = g->gr_mem[0];
+		while (gr && (*gr != (char)NULL)) {
+			if (strcmp(name,gr) == 0) {
+				grouplst[i] = g->gr_gid;
+				i++;
+				gr = (char *)NULL;
+				break;
+			}
+			gr = g->gr_mem[++j];
+		}
+	}
+	endgrent();
+	ret = setgroups(i, grouplst);
+	free(grouplst);
+	return ret;
+#endif /* HAVE_SETGROUPS */
+}
+#endif /* HAVE_INITGROUPS */
+
+
+#if (defined(SecureWare) && defined(SCO))
+/* This is needed due to needing the nap() function but we don't want
+   to include the Xenix libraries since that will break other things...
+   BTW: system call # 0x0c28 is the same as calling nap() */
+long nap(long milliseconds) {
+	 return syscall(0x0c28, milliseconds);
+ }
+#endif
+
+
+#ifndef HAVE_MEMMOVE
+/*******************************************************************
+safely copies memory, ensuring no overlap problems.
+this is only used if the machine does not have its own memmove().
+this is not the fastest algorithm in town, but it will do for our
+needs.
+********************************************************************/
+void *rep_memmove(void *dest,const void *src,int size)
+{
+	unsigned long d,s;
+	int i;
+	if (dest==src || !size) return(dest);
+
+	d = (unsigned long)dest;
+	s = (unsigned long)src;
+
+	if ((d >= (s+size)) || (s >= (d+size))) {
+		/* no overlap */
+		memcpy(dest,src,size);
+		return(dest);
+	}
+
+	if (d < s) {
+		/* we can forward copy */
+		if (s-d >= sizeof(int) && 
+		    !(s%sizeof(int)) && 
+		    !(d%sizeof(int)) && 
+		    !(size%sizeof(int))) {
+			/* do it all as words */
+			int *idest = (int *)dest;
+			int *isrc = (int *)src;
+			size /= sizeof(int);
+			for (i=0;i<size;i++) idest[i] = isrc[i];
+		} else {
+			/* simplest */
+			char *cdest = (char *)dest;
+			char *csrc = (char *)src;
+			for (i=0;i<size;i++) cdest[i] = csrc[i];
+		}
+	} else {
+		/* must backward copy */
+		if (d-s >= sizeof(int) && 
+		    !(s%sizeof(int)) && 
+		    !(d%sizeof(int)) && 
+		    !(size%sizeof(int))) {
+			/* do it all as words */
+			int *idest = (int *)dest;
+			int *isrc = (int *)src;
+			size /= sizeof(int);
+			for (i=size-1;i>=0;i--) idest[i] = isrc[i];
+		} else {
+			/* simplest */
+			char *cdest = (char *)dest;
+			char *csrc = (char *)src;
+			for (i=size-1;i>=0;i--) cdest[i] = csrc[i];
+		}      
+	}
+	return(dest);
+}
+#endif /* HAVE_MEMMOVE */
+
+#ifndef HAVE_STRDUP
+/****************************************************************************
+duplicate a string
+****************************************************************************/
+char *rep_strdup(const char *s)
+{
+	size_t len;
+	char *ret;
+
+	if (!s) return(NULL);
+
+	len = strlen(s)+1;
+	ret = (char *)malloc(len);
+	if (!ret) return(NULL);
+	memcpy(ret,s,len);
+	return(ret);
+}
+#endif /* HAVE_STRDUP */
+
+#ifndef HAVE_SETLINEBUF
+void rep_setlinebuf(FILE *stream)
+{
+	setvbuf(stream, (char *)NULL, _IOLBF, 0);
+}
+#endif /* HAVE_SETLINEBUF */
+
+#ifndef HAVE_VSYSLOG
+#ifdef HAVE_SYSLOG
+void rep_vsyslog (int facility_priority, const char *format, va_list arglist)
+{
+	char *msg = NULL;
+	vasprintf(&msg, format, arglist);
+	if (!msg)
+		return;
+	syslog(facility_priority, "%s", msg);
+	free(msg);
+}
+#endif /* HAVE_SYSLOG */
+#endif /* HAVE_VSYSLOG */
+
+#ifndef HAVE_STRNLEN
+/**
+ Some platforms don't have strnlen
+**/
+ size_t rep_strnlen(const char *s, size_t max)
+{
+        size_t len;
+  
+        for (len = 0; len < max; len++) {
+                if (s[len] == '\0') {
+                        break;
+                }
+        }
+        return len;  
+}
+#endif
+  
+#ifndef HAVE_STRNDUP
+/**
+ Some platforms don't have strndup.
+**/
+char *rep_strndup(const char *s, size_t n)
+{
+	char *ret;
+	
+	n = strnlen(s, n);
+	ret = malloc(n+1);
+	if (!ret)
+		return NULL;
+	memcpy(ret, s, n);
+	ret[n] = 0;
+
+	return ret;
+}
+#endif
+
+#ifndef HAVE_WAITPID
+int rep_waitpid(pid_t pid,int *status,int options)
+{
+  return wait4(pid, status, options, NULL);
+}
+#endif
+
+#ifndef HAVE_SETEUID
+int rep_seteuid(uid_t euid)
+{
+#ifdef HAVE_SETRESUID
+	return setresuid(-1, euid, -1);
+#else
+#  error "You need a seteuid function"
+#endif
+}
+#endif
+
+#ifndef HAVE_SETEGID
+int rep_setegid(gid_t egid)
+{
+#ifdef HAVE_SETRESGID
+	return setresgid(-1, egid, -1);
+#else
+#  error "You need a setegid function"
+#endif
+}
+#endif
+
+/*******************************************************************
+os/2 also doesn't have chroot
+********************************************************************/
+#ifndef HAVE_CHROOT
+int rep_chroot(const char *dname)
+{
+	errno = ENOSYS;
+	return -1;
+}
+#endif
+
+/*****************************************************************
+ Possibly replace mkstemp if it is broken.
+*****************************************************************/  
+
+#ifndef HAVE_SECURE_MKSTEMP
+int rep_mkstemp(char *template)
+{
+	/* have a reasonable go at emulating it. Hope that
+	   the system mktemp() isn't completly hopeless */
+	char *p = mktemp(template);
+	if (!p)
+		return -1;
+	return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
+}
+#endif
+
+#ifndef HAVE_MKDTEMP
+char *rep_mkdtemp(char *template)
+{
+	char *dname;
+	
+	if ((dname = mktemp(template))) {
+		if (mkdir(dname, 0700) >= 0) {
+			return dname;
+		}
+	}
+
+	return NULL;
+}
+#endif
+
+/*****************************************************************
+ Watch out: this is not thread safe.
+*****************************************************************/
+
+#ifndef HAVE_PREAD
+ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset)
+{
+	if (lseek(__fd, __offset, SEEK_SET) != __offset) {
+		return -1;
+	}
+	return read(__fd, __buf, __nbytes);
+}
+#endif
+
+/*****************************************************************
+ Watch out: this is not thread safe.
+*****************************************************************/
+
+#ifndef HAVE_PWRITE
+ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset)
+{
+	if (lseek(__fd, __offset, SEEK_SET) != __offset) {
+		return -1;
+	}
+	return write(__fd, __buf, __nbytes);
+}
+#endif
+
+#ifndef HAVE_STRCASESTR
+char *rep_strcasestr(const char *haystack, const char *needle)
+{
+	const char *s;
+	size_t nlen = strlen(needle);
+	for (s=haystack;*s;s++) {
+		if (toupper(*needle) == toupper(*s) &&
+		    strncasecmp(s, needle, nlen) == 0) {
+			return (char *)((uintptr_t)s);
+		}
+	}
+	return NULL;
+}
+#endif
+
+#ifndef HAVE_STRTOK_R
+/* based on GLIBC version, copyright Free Software Foundation */
+char *rep_strtok_r(char *s, const char *delim, char **save_ptr)
+{
+	char *token;
+
+	if (s == NULL) s = *save_ptr;
+
+	s += strspn(s, delim);
+	if (*s == '\0') {
+		*save_ptr = s;
+		return NULL;
+	}
+
+	token = s;
+	s = strpbrk(token, delim);
+	if (s == NULL) {
+		*save_ptr = token + strlen(token);
+	} else {
+		*s = '\0';
+		*save_ptr = s + 1;
+	}
+
+	return token;
+}
+#endif
+
+#ifndef HAVE_STRTOLL
+long long int rep_strtoll(const char *str, char **endptr, int base)
+{
+#ifdef HAVE_STRTOQ
+	return strtoq(str, endptr, base);
+#elif defined(HAVE___STRTOLL) 
+	return __strtoll(str, endptr, base);
+#elif SIZEOF_LONG == SIZEOF_LONG_LONG
+	return (long long int) strtol(str, endptr, base);
+#else
+# error "You need a strtoll function"
+#endif
+}
+#endif
+
+
+#ifndef HAVE_STRTOULL
+unsigned long long int rep_strtoull(const char *str, char **endptr, int base)
+{
+#ifdef HAVE_STRTOUQ
+	return strtouq(str, endptr, base);
+#elif defined(HAVE___STRTOULL) 
+	return __strtoull(str, endptr, base);
+#elif SIZEOF_LONG == SIZEOF_LONG_LONG
+	return (unsigned long long int) strtoul(str, endptr, base);
+#else
+# error "You need a strtoull function"
+#endif
+}
+#endif
+
+#ifndef HAVE_SETENV
+int rep_setenv(const char *name, const char *value, int overwrite) 
+{
+	char *p;
+	size_t l1, l2;
+	int ret;
+
+	if (!overwrite && getenv(name)) {
+		return 0;
+	}
+
+	l1 = strlen(name);
+	l2 = strlen(value);
+
+	p = malloc(l1+l2+2);
+	if (p == NULL) {
+		return -1;
+	}
+	memcpy(p, name, l1);
+	p[l1] = '=';
+	memcpy(p+l1+1, value, l2);
+	p[l1+l2+1] = 0;
+
+	ret = putenv(p);
+	if (ret != 0) {
+		free(p);
+	}
+
+	return ret;
+}
+#endif
+
+#ifndef HAVE_UNSETENV
+int rep_unsetenv(const char *name)
+{
+	extern char **environ;
+	size_t len = strlen(name);
+	size_t i, count;
+
+	if (environ == NULL || getenv(name) == NULL) {
+		return 0;
+	}
+
+	for (i=0;environ[i];i++) /* noop */ ;
+
+	count=i;
+	
+	for (i=0;i<count;) {
+		if (strncmp(environ[i], name, len) == 0 && environ[i][len] == '=') {
+			/* note: we do _not_ free the old variable here. It is unsafe to 
+			   do so, as the pointer may not have come from malloc */
+			memmove(&environ[i], &environ[i+1], (count-i)*sizeof(char *));
+			count--;
+		} else {
+			i++;
+		}
+	}
+
+	return 0;
+}
+#endif
+
+#ifndef HAVE_UTIME
+int rep_utime(const char *filename, const struct utimbuf *buf)
+{
+	errno = ENOSYS;
+	return -1;
+}
+#endif
+
+#ifndef HAVE_UTIMES
+int rep_utimes(const char *filename, const struct timeval tv[2])
+{
+	struct utimbuf u;
+
+	u.actime = tv[0].tv_sec;
+	if (tv[0].tv_usec > 500000) {
+		u.actime += 1;
+	}
+
+	u.modtime = tv[1].tv_sec;
+	if (tv[1].tv_usec > 500000) {
+		u.modtime += 1;
+	}
+
+	return utime(filename, &u);
+}
+#endif