Unix SMB/CIFS implementation.
Samba system utilities
Copyright (C) Andrew Tridgell 1992-1998
- Copyright (C) Jeremy Allison 1998-2002
+ Copyright (C) Jeremy Allison 1998-2005
+ Copyright (C) Timur Bakeyev 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "includes.h"
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+
/*
The idea is that this file will eventually have wrappers around all
important system calls in samba. The aims are:
return ret;
}
+
+/*******************************************************************
+A pread wrapper that will deal with EINTR and 64-bit file offsets.
+********************************************************************/
+
+#if defined(HAVE_PREAD) || defined(HAVE_PREAD64)
+ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off)
+{
+ ssize_t ret;
+
+ do {
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PREAD64)
+ ret = pread64(fd, buf, count, off);
+#else
+ ret = pread(fd, buf, count, off);
+#endif
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+#endif
+
+/*******************************************************************
+A write wrapper that will deal with EINTR and 64-bit file offsets.
+********************************************************************/
+
+#if defined(HAVE_PWRITE) || defined(HAVE_PWRITE64)
+ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off)
+{
+ ssize_t ret;
+
+ do {
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PWRITE64)
+ ret = pwrite64(fd, buf, count, off);
+#else
+ ret = pwrite(fd, buf, count, off);
+#endif
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+#endif
+
/*******************************************************************
A send wrapper that will deal with EINTR.
********************************************************************/
#endif
}
+/*******************************************************************
+ An opendir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+SMB_STRUCT_DIR *sys_opendir(const char *name)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPENDIR64)
+ return opendir64(name);
+#else
+ return opendir(name);
+#endif
+}
+
/*******************************************************************
A readdir wrapper that will deal with 64 bit filesizes.
********************************************************************/
-SMB_STRUCT_DIRENT *sys_readdir(DIR *dirp)
+SMB_STRUCT_DIRENT *sys_readdir(SMB_STRUCT_DIR *dirp)
{
#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_READDIR64)
return readdir64(dirp);
#endif
}
+/*******************************************************************
+ A seekdir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_seekdir(SMB_STRUCT_DIR *dirp, long offset)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_SEEKDIR64)
+ seekdir64(dirp, offset);
+#else
+ seekdir(dirp, offset);
+#endif
+}
+
+/*******************************************************************
+ A telldir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+long sys_telldir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_TELLDIR64)
+ return (long)telldir64(dirp);
+#else
+ return (long)telldir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A rewinddir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_rewinddir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_REWINDDIR64)
+ rewinddir64(dirp);
+#else
+ rewinddir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A close wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_closedir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CLOSEDIR64)
+ return closedir64(dirp);
+#else
+ return closedir(dirp);
+#endif
+}
+
/*******************************************************************
An mknod() wrapper that will deal with 64 bit filesizes.
********************************************************************/
DEBUG(1,("WARNING: no chown!\n"));
done=1;
}
+ errno = ENOSYS;
+ return -1;
#else
return(chown(fname,uid,gid));
#endif
}
-#if defined(HAVE_IRIX_SPECIFIC_CAPABILITIES)
-/**************************************************************************
- Try and abstract process capabilities (for systems that have them).
-****************************************************************************/
-static BOOL set_process_capability( uint32 cap_flag, BOOL enable )
-{
- if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
- cap_t cap = cap_get_proc();
+#if defined(HAVE_POSIX_CAPABILITIES)
- if (cap == NULL) {
- DEBUG(0,("set_process_capability: cap_get_proc failed. Error was %s\n",
- strerror(errno)));
- return False;
- }
+#ifdef HAVE_SYS_CAPABILITY_H
- if(enable)
- cap->cap_effective |= CAP_NETWORK_MGT;
- else
- cap->cap_effective &= ~CAP_NETWORK_MGT;
+#if defined(BROKEN_REDHAT_7_SYSTEM_HEADERS) && !defined(_I386_STATFS_H) && !defined(_PPC_STATFS_H)
+#define _I386_STATFS_H
+#define _PPC_STATFS_H
+#define BROKEN_REDHAT_7_STATFS_WORKAROUND
+#endif
- if (cap_set_proc(cap) == -1) {
- DEBUG(0,("set_process_capability: cap_set_proc failed. Error was %s\n",
- strerror(errno)));
- cap_free(cap);
- return False;
- }
+#include <sys/capability.h>
- cap_free(cap);
+#ifdef BROKEN_REDHAT_7_STATFS_WORKAROUND
+#undef _I386_STATFS_H
+#undef _PPC_STATFS_H
+#undef BROKEN_REDHAT_7_STATFS_WORKAROUND
+#endif
- DEBUG(10,("set_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
- }
- return True;
-}
+#endif /* HAVE_SYS_CAPABILITY_H */
/**************************************************************************
- Try and abstract inherited process capabilities (for systems that have them).
+ Try and abstract process capabilities (for systems that have them).
****************************************************************************/
-static BOOL set_inherited_process_capability( uint32 cap_flag, BOOL enable )
-{
- if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
- cap_t cap = cap_get_proc();
+/* Set the POSIX capabilities needed for the given purpose into the effective
+ * capability set of the current process. Make sure they are always removed
+ * from the inheritable set, because there is no circumstance in which our
+ * children should inherit our elevated privileges.
+ */
+static BOOL set_process_capability(enum smbd_capability capability,
+ BOOL enable)
+{
+ cap_value_t cap_vals[2] = {0};
+ int num_cap_vals = 0;
+
+ cap_t cap;
+
+#if defined(HAVE_PRCTL) && defined(PR_GET_KEEPCAPS) && defined(PR_SET_KEEPCAPS)
+ /* On Linux, make sure that any capabilities we grab are sticky
+ * across UID changes. We expect that this would allow us to keep both
+ * the effective and permitted capability sets, but as of circa 2.6.16,
+ * only the permitted set is kept. It is a bug (which we work around)
+ * that the effective set is lost, but we still require the effective
+ * set to be kept.
+ */
+ if (!prctl(PR_GET_KEEPCAPS)) {
+ prctl(PR_SET_KEEPCAPS, 1);
+ }
+#endif
- if (cap == NULL) {
- DEBUG(0,("set_inherited_process_capability: cap_get_proc failed. Error was %s\n",
- strerror(errno)));
- return False;
- }
+ cap = cap_get_proc();
+ if (cap == NULL) {
+ DEBUG(0,("set_process_capability: cap_get_proc failed: %s\n",
+ strerror(errno)));
+ return False;
+ }
- if(enable)
- cap->cap_inheritable |= CAP_NETWORK_MGT;
- else
- cap->cap_inheritable &= ~CAP_NETWORK_MGT;
+ switch (capability) {
+ case KERNEL_OPLOCK_CAPABILITY:
+#ifdef CAP_NETWORK_MGT
+ /* IRIX has CAP_NETWORK_MGT for oplocks. */
+ cap_vals[num_cap_vals++] = CAP_NETWORK_MGT;
+#endif
+ break;
+ case DMAPI_ACCESS_CAPABILITY:
+#ifdef CAP_DEVICE_MGT
+ /* IRIX has CAP_DEVICE_MGT for DMAPI access. */
+ cap_vals[num_cap_vals++] = CAP_DEVICE_MGT;
+#elif CAP_MKNOD
+ /* Linux has CAP_MKNOD for DMAPI access. */
+ cap_vals[num_cap_vals++] = CAP_MKNOD;
+#endif
+ break;
+ }
- if (cap_set_proc(cap) == -1) {
- DEBUG(0,("set_inherited_process_capability: cap_set_proc failed. Error was %s\n",
- strerror(errno)));
- cap_free(cap);
- return False;
- }
+ SMB_ASSERT(num_cap_vals <= ARRAY_SIZE(cap_vals));
+ if (num_cap_vals == 0) {
cap_free(cap);
+ return True;
+ }
+
+ cap_set_flag(cap, CAP_EFFECTIVE, num_cap_vals, cap_vals,
+ enable ? CAP_SET : CAP_CLEAR);
- DEBUG(10,("set_inherited_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
+ /* We never want to pass capabilities down to our children, so make
+ * sure they are not inherited.
+ */
+ cap_set_flag(cap, CAP_INHERITABLE, num_cap_vals, cap_vals, CAP_CLEAR);
+
+ if (cap_set_proc(cap) == -1) {
+ DEBUG(0, ("set_process_capability: cap_set_proc failed: %s\n",
+ strerror(errno)));
+ cap_free(cap);
+ return False;
}
+
+ cap_free(cap);
return True;
}
-#endif
+
+#endif /* HAVE_POSIX_CAPABILITIES */
/****************************************************************************
Gain the oplock capability from the kernel if possible.
****************************************************************************/
-void oplock_set_capability(BOOL this_process, BOOL inherit)
+void set_effective_capability(enum smbd_capability capability)
{
-#if HAVE_KERNEL_OPLOCKS_IRIX
- set_process_capability(KERNEL_OPLOCK_CAPABILITY,this_process);
- set_inherited_process_capability(KERNEL_OPLOCK_CAPABILITY,inherit);
-#endif
+#if defined(HAVE_POSIX_CAPABILITIES)
+ set_process_capability(capability, True);
+#endif /* HAVE_POSIX_CAPABILITIES */
+}
+
+void drop_effective_capability(enum smbd_capability capability)
+{
+#if defined(HAVE_POSIX_CAPABILITIES)
+ set_process_capability(capability, False);
+#endif /* HAVE_POSIX_CAPABILITIES */
}
/**************************************************************************
#endif /* HAVE_BROKEN_GETGROUPS */
}
-#ifdef HAVE_SETGROUPS
/**************************************************************************
Wrapper for setgroups. Deals with broken (int) case. Automatically used
int sys_setgroups(int setlen, gid_t *gidset)
{
+#if !defined(HAVE_SETGROUPS)
+ errno = ENOSYS;
+ return -1;
+#endif /* HAVE_SETGROUPS */
+
#if !defined(HAVE_BROKEN_GETGROUPS)
return setgroups(setlen, gidset);
#else
#endif /* HAVE_BROKEN_GETGROUPS */
}
-#endif /* HAVE_SETGROUPS */
-
/**************************************************************************
Wrappers for setpwent(), getpwent() and endpwent()
****************************************************************************/
Wrappers for getpwnam(), getpwuid(), getgrnam(), getgrgid()
****************************************************************************/
+#ifdef ENABLE_BUILD_FARM_HACKS
+
+/*
+ * In the build farm we want to be able to join machines to the domain. As we
+ * don't have root access, we need to bypass direct access to /etc/passwd
+ * after a user has been created via samr. Fake those users.
+ */
+
+static struct passwd *fake_pwd;
+static int num_fake_pwd;
+
+struct passwd *sys_getpwnam(const char *name)
+{
+ int i;
+
+ for (i=0; i<num_fake_pwd; i++) {
+ if (strcmp(fake_pwd[i].pw_name, name) == 0) {
+ DEBUG(10, ("Returning fake user %s\n", name));
+ return &fake_pwd[i];
+ }
+ }
+
+ return getpwnam(name);
+}
+
+struct passwd *sys_getpwuid(uid_t uid)
+{
+ int i;
+
+ for (i=0; i<num_fake_pwd; i++) {
+ if (fake_pwd[i].pw_uid == uid) {
+ DEBUG(10, ("Returning fake user %s\n",
+ fake_pwd[i].pw_name));
+ return &fake_pwd[i];
+ }
+ }
+
+ return getpwuid(uid);
+}
+
+void faked_create_user(const char *name)
+{
+ int i;
+ uid_t uid;
+ struct passwd new_pwd;
+
+ for (i=0; i<10; i++) {
+ generate_random_buffer((unsigned char *)&uid,
+ sizeof(uid));
+ if (getpwuid(uid) == NULL) {
+ break;
+ }
+ }
+
+ if (i==10) {
+ /* Weird. No free uid found... */
+ return;
+ }
+
+ new_pwd.pw_name = SMB_STRDUP(name);
+ new_pwd.pw_passwd = SMB_STRDUP("x");
+ new_pwd.pw_uid = uid;
+ new_pwd.pw_gid = 100;
+ new_pwd.pw_gecos = SMB_STRDUP("faked user");
+ new_pwd.pw_dir = SMB_STRDUP("/nodir");
+ new_pwd.pw_shell = SMB_STRDUP("/bin/false");
+
+ ADD_TO_ARRAY(NULL, struct passwd, new_pwd, &fake_pwd,
+ &num_fake_pwd);
+
+ DEBUG(10, ("Added fake user %s, have %d fake users\n",
+ name, num_fake_pwd));
+}
+
+#else
+
struct passwd *sys_getpwnam(const char *name)
{
return getpwnam(name);
return getpwuid(uid);
}
+#endif
+
struct group *sys_getgrnam(const char *name)
{
return getgrnam(name);
Wide opendir. Just narrow and call sys_xxx.
****************************************************************************/
-DIR *wsys_opendir(const smb_ucs2_t *wfname)
+SMB_STRUCT_DIR *wsys_opendir(const smb_ucs2_t *wfname)
{
pstring fname;
return opendir(unicode_to_unix(fname,wfname,sizeof(fname)));
Wide readdir. Return a structure pointer containing a wide filename.
****************************************************************************/
-SMB_STRUCT_WDIRENT *wsys_readdir(DIR *dirp)
+SMB_STRUCT_WDIRENT *wsys_readdir(SMB_STRUCT_DIR *dirp)
{
static SMB_STRUCT_WDIRENT retval;
SMB_STRUCT_DIRENT *dirval = sys_readdir(dirp);
for( argcl = 1; ptr; ptr = strtok(NULL, " \t"))
argcl++;
- if((argl = (char **)malloc((argcl + 1) * sizeof(char *))) == NULL)
+ if((argl = (char **)SMB_MALLOC((argcl + 1) * sizeof(char *))) == NULL)
return NULL;
/*
goto err_exit;
}
- if((entry = (popen_list *)malloc(sizeof(popen_list))) == NULL)
+ if((entry = SMB_MALLOC_P(popen_list)) == NULL)
goto err_exit;
ZERO_STRUCTP(entry);
#endif
}
-void *sys_dlsym(void *handle, char *symbol)
+void *sys_dlsym(void *handle, const char *symbol)
{
#if defined(HAVE_DLSYM)
return dlsym(handle, symbol);
Wrapper for Admin Logs.
****************************************************************************/
-void sys_adminlog(int priority, const char *format_str, ...)
+ void sys_adminlog(int priority, const char *format_str, ...)
{
va_list ap;
int ret;
- char **msgbuf = NULL;
-
- if (!lp_admin_log())
- return;
+ char *msgbuf = NULL;
va_start( ap, format_str );
- ret = vasprintf( msgbuf, format_str, ap );
+ ret = vasprintf( &msgbuf, format_str, ap );
va_end( ap );
if (ret == -1)
return;
#if defined(HAVE_SYSLOG)
- syslog( priority, "%s", *msgbuf );
+ syslog( priority, "%s", msgbuf );
+#else
+ DEBUG(0,("%s", msgbuf ));
+#endif
+ SAFE_FREE(msgbuf);
+}
+
+/**************************************************************************
+ Wrappers for extented attribute calls. Based on the Linux package with
+ support for IRIX and (Net|Free)BSD also. Expand as other systems have them.
+****************************************************************************/
+
+ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_GETXATTR)
+ return getxattr(path, name, value, size);
+#elif defined(HAVE_GETEA)
+ return getea(path, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_FILE)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ /*
+ * The BSD implementation has a nasty habit of silently truncating
+ * the returned value to the size of the buffer, so we have to check
+ * that the buffer is large enough to fit the returned value.
+ */
+ if((retval=extattr_get_file(path, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_getxattr: extattr_get_file() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GET)
+ int retval, flags = 0;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_LGETXATTR)
+ return lgetxattr(path, name, value, size);
+#elif defined(HAVE_LGETEA)
+ return lgetea(path, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_LINK)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ if((retval=extattr_get_link(path, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_lgetxattr: extattr_get_link() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GET)
+ int retval, flags = ATTR_DONTFOLLOW;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_FGETXATTR)
+ return fgetxattr(filedes, name, value, size);
+#elif defined(HAVE_FGETEA)
+ return fgetea(filedes, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_FD)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_fgetxattr: extattr_get_fd() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GETF)
+ int retval, flags = 0;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+#if defined(HAVE_EXTATTR_LIST_FILE)
+
+#define EXTATTR_PREFIX(s) (s), (sizeof((s))-1)
+
+static struct {
+ int space;
+ const char *name;
+ size_t len;
+}
+extattr[] = {
+ { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
+ { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
+};
+
+typedef union {
+ const char *path;
+ int filedes;
+} extattr_arg;
+
+static ssize_t bsd_attr_list (int type, extattr_arg arg, char *list, size_t size)
+{
+ ssize_t list_size, total_size = 0;
+ int i, t, len;
+ char *buf;
+ /* Iterate through extattr(2) namespaces */
+ for(t = 0; t < (sizeof(extattr)/sizeof(extattr[0])); t++) {
+ switch(type) {
+#if defined(HAVE_EXTATTR_LIST_FILE)
+ case 0:
+ list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
+ break;
+#endif
+#if defined(HAVE_EXTATTR_LIST_LINK)
+ case 1:
+ list_size = extattr_list_link(arg.path, extattr[t].space, list, size);
+ break;
+#endif
+#if defined(HAVE_EXTATTR_LIST_FD)
+ case 2:
+ list_size = extattr_list_fd(arg.filedes, extattr[t].space, list, size);
+ break;
+#endif
+ default:
+ errno = ENOSYS;
+ return -1;
+ }
+ /* Some error happend. Errno should be set by the previous call */
+ if(list_size < 0)
+ return -1;
+ /* No attributes */
+ if(list_size == 0)
+ continue;
+ /* XXX: Call with an empty buffer may be used to calculate
+ necessary buffer size. Unfortunately, we can't say, how
+ many attributes were returned, so here is the potential
+ problem with the emulation.
+ */
+ if(list == NULL) {
+ /* Take the worse case of one char attribute names -
+ two bytes per name plus one more for sanity.
+ */
+ total_size += list_size + (list_size/2 + 1)*extattr[t].len;
+ continue;
+ }
+ /* Count necessary offset to fit namespace prefixes */
+ len = 0;
+ for(i = 0; i < list_size; i += list[i] + 1)
+ len += extattr[t].len;
+
+ total_size += list_size + len;
+ /* Buffer is too small to fit the results */
+ if(total_size > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ /* Shift results back, so we can prepend prefixes */
+ buf = memmove(list + len, list, list_size);
+
+ for(i = 0; i < list_size; i += len + 1) {
+ len = buf[i];
+ strncpy(list, extattr[t].name, extattr[t].len + 1);
+ list += extattr[t].len;
+ strncpy(list, buf + i + 1, len);
+ list[len] = '\0';
+ list += len + 1;
+ }
+ size -= total_size;
+ }
+ return total_size;
+}
+
+#endif
+
+#if defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+static char attr_buffer[ATTR_MAX_VALUELEN];
+
+static ssize_t irix_attr_list(const char *path, int filedes, char *list, size_t size, int flags)
+{
+ int retval = 0, index;
+ attrlist_cursor_t *cursor = 0;
+ int total_size = 0;
+ attrlist_t * al = (attrlist_t *)attr_buffer;
+ attrlist_ent_t *ae;
+ size_t ent_size, left = size;
+ char *bp = list;
+
+ while (True) {
+ if (filedes)
+ retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ else
+ retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ if (retval) break;
+ for (index = 0; index < al->al_count; index++) {
+ ae = ATTR_ENTRY(attr_buffer, index);
+ ent_size = strlen(ae->a_name) + sizeof("user.");
+ if (left >= ent_size) {
+ strncpy(bp, "user.", sizeof("user."));
+ strncat(bp, ae->a_name, ent_size - sizeof("user."));
+ bp += ent_size;
+ left -= ent_size;
+ } else if (size) {
+ errno = ERANGE;
+ retval = -1;
+ break;
+ }
+ total_size += ent_size;
+ }
+ if (al->al_more == 0) break;
+ }
+ if (retval == 0) {
+ flags |= ATTR_ROOT;
+ cursor = 0;
+ while (True) {
+ if (filedes)
+ retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ else
+ retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ if (retval) break;
+ for (index = 0; index < al->al_count; index++) {
+ ae = ATTR_ENTRY(attr_buffer, index);
+ ent_size = strlen(ae->a_name) + sizeof("system.");
+ if (left >= ent_size) {
+ strncpy(bp, "system.", sizeof("system."));
+ strncat(bp, ae->a_name, ent_size - sizeof("system."));
+ bp += ent_size;
+ left -= ent_size;
+ } else if (size) {
+ errno = ERANGE;
+ retval = -1;
+ break;
+ }
+ total_size += ent_size;
+ }
+ if (al->al_more == 0) break;
+ }
+ }
+ return (ssize_t)(retval ? retval : total_size);
+}
+
+#endif
+
+ssize_t sys_listxattr (const char *path, char *list, size_t size)
+{
+#if defined(HAVE_LISTXATTR)
+ return listxattr(path, list, size);
+#elif defined(HAVE_LISTEA)
+ return listea(path, list, size);
+#elif defined(HAVE_EXTATTR_LIST_FILE)
+ extattr_arg arg;
+ arg.path = path;
+ return bsd_attr_list(0, arg, list, size);
+#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+ return irix_attr_list(path, 0, list, size, 0);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_llistxattr (const char *path, char *list, size_t size)
+{
+#if defined(HAVE_LLISTXATTR)
+ return llistxattr(path, list, size);
+#elif defined(HAVE_LLISTEA)
+ return llistea(path, list, size);
+#elif defined(HAVE_EXTATTR_LIST_LINK)
+ extattr_arg arg;
+ arg.path = path;
+ return bsd_attr_list(1, arg, list, size);
+#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+ return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_flistxattr (int filedes, char *list, size_t size)
+{
+#if defined(HAVE_FLISTXATTR)
+ return flistxattr(filedes, list, size);
+#elif defined(HAVE_FLISTEA)
+ return flistea(filedes, list, size);
+#elif defined(HAVE_EXTATTR_LIST_FD)
+ extattr_arg arg;
+ arg.filedes = filedes;
+ return bsd_attr_list(2, arg, list, size);
+#elif defined(HAVE_ATTR_LISTF)
+ return irix_attr_list(NULL, filedes, list, size, 0);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_removexattr (const char *path, const char *name)
+{
+#if defined(HAVE_REMOVEXATTR)
+ return removexattr(path, name);
+#elif defined(HAVE_REMOVEEA)
+ return removeea(path, name);
+#elif defined(HAVE_EXTATTR_DELETE_FILE)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_file(path, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVE)
+ int flags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_remove(path, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_lremovexattr (const char *path, const char *name)
+{
+#if defined(HAVE_LREMOVEXATTR)
+ return lremovexattr(path, name);
+#elif defined(HAVE_LREMOVEEA)
+ return lremoveea(path, name);
+#elif defined(HAVE_EXTATTR_DELETE_LINK)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_link(path, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVE)
+ int flags = ATTR_DONTFOLLOW;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_remove(path, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_fremovexattr (int filedes, const char *name)
+{
+#if defined(HAVE_FREMOVEXATTR)
+ return fremovexattr(filedes, name);
+#elif defined(HAVE_FREMOVEEA)
+ return fremoveea(filedes, name);
+#elif defined(HAVE_EXTATTR_DELETE_FD)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_fd(filedes, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVEF)
+ int flags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_removef(filedes, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+#if !defined(HAVE_SETXATTR)
+#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
+#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
+#endif
+
+int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_SETXATTR)
+ return setxattr(path, name, value, size, flags);
+#elif defined(HAVE_SETEA)
+ return setea(path, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_FILE)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_file(path, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+ retval = extattr_set_file(path, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SET)
+ int myflags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_set(path, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_LSETXATTR)
+ return lsetxattr(path, name, value, size, flags);
+#elif defined(LSETEA)
+ return lsetea(path, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_LINK)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_link(path, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+
+ retval = extattr_set_link(path, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SET)
+ int myflags = ATTR_DONTFOLLOW;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_set(path, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_FSETXATTR)
+ return fsetxattr(filedes, name, value, size, flags);
+#elif defined(HAVE_FSETEA)
+ return fsetea(filedes, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_FD)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+ retval = extattr_set_fd(filedes, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SETF)
+ int myflags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_setf(filedes, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/****************************************************************************
+ Return the major devicenumber for UNIX extensions.
+****************************************************************************/
+
+uint32 unix_dev_major(SMB_DEV_T dev)
+{
+#if defined(HAVE_DEVICE_MAJOR_FN)
+ return (uint32)major(dev);
+#else
+ return (uint32)(dev >> 8);
+#endif
+}
+
+/****************************************************************************
+ Return the minor devicenumber for UNIX extensions.
+****************************************************************************/
+
+uint32 unix_dev_minor(SMB_DEV_T dev)
+{
+#if defined(HAVE_DEVICE_MINOR_FN)
+ return (uint32)minor(dev);
+#else
+ return (uint32)(dev & 0xff);
+#endif
+}
+
+#if defined(WITH_AIO)
+
+/*******************************************************************
+ An aio_read wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_READ64)
+ return aio_read64(aiocb);
+#elif defined(HAVE_AIO_READ)
+ return aio_read(aiocb);
#else
- DEBUG(0,("%s", *msgbuf ));
+ errno = ENOSYS;
+ return -1;
#endif
- SAFE_FREE(*msgbuf);
}
+
+/*******************************************************************
+ An aio_write wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_WRITE64)
+ return aio_write64(aiocb);
+#elif defined(HAVE_AIO_WRITE)
+ return aio_write(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_return wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_RETURN64)
+ return aio_return64(aiocb);
+#elif defined(HAVE_AIO_RETURN)
+ return aio_return(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_cancel wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_CANCEL64)
+ return aio_cancel64(fd, aiocb);
+#elif defined(HAVE_AIO_CANCEL)
+ return aio_cancel(fd, aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_error wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_ERROR64)
+ return aio_error64(aiocb);
+#elif defined(HAVE_AIO_ERROR)
+ return aio_error(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_fsync wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_FSYNC64)
+ return aio_fsync64(op, aiocb);
+#elif defined(HAVE_AIO_FSYNC)
+ return aio_fsync(op, aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_fsync wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_SUSPEND64)
+ return aio_suspend64(cblist, n, timeout);
+#elif defined(HAVE_AIO_FSYNC)
+ return aio_suspend(cblist, n, timeout);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+#else /* !WITH_AIO */
+
+int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
+{
+ errno = ENOSYS;
+ return -1;
+}
+#endif /* WITH_AIO */