Copyright (C) 2001 Andreas Gruenbacher.
Samba 3.0.28, modified for netatalk.
- $Id: sys_ea.c,v 1.2 2009-11-18 11:14:59 didg Exp $
+ $Id: sys_ea.c,v 1.6 2009-12-04 10:26:10 franklahm Exp $
*/
#include <atalk/logger.h>
#include <atalk/ea.h>
+#ifndef ENOATTR
+#define ENOATTR ENODATA
+#endif
+
/******** Solaris EA helper function prototypes ********/
#ifdef HAVE_ATTROPEN
#define SOLARIS_ATTRMODE S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
#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) {
+ if((retval = extattr_get_file(path, EXTATTR_NAMESPACE_USER, uname, NULL, 0)) >= 0) {
+ if (size == 0)
+ /* size == 0 means only return size */
+ return retval;
+ if (retval > size) {
errno = ERANGE;
return -1;
}
- if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
+ if ((retval = extattr_get_file(path, EXTATTR_NAMESPACE_USER, uname, value, size)) >= 0)
return retval;
}
#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=extattr_get_link(path, EXTATTR_NAMESPACE_USER, uname, NULL, 0)) >= 0) {
if(retval > size) {
errno = ERANGE;
return -1;
}
- if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
+ if((retval=extattr_get_link(path, EXTATTR_NAMESPACE_USER, uname, value, size)) >= 0)
return retval;
}
size_t len;
}
extattr[] = {
- { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
- { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
+ { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("") },
+ { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("") },
};
typedef union {
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) {
+ ssize_t list_size;
+ int i, len;
+
+ switch(type) {
#if defined(HAVE_EXTATTR_LIST_FILE)
- case 0:
- list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
- break;
+ case 0:
+ list_size = extattr_list_file(arg.path, EXTATTR_NAMESPACE_USER, 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;
+ case 1:
+ list_size = extattr_list_link(arg.path, EXTATTR_NAMESPACE_USER, 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;
+ case 2:
+ list_size = extattr_list_fd(arg.filedes, EXTATTR_NAMESPACE_USER, 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;
+ 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)
+ return 0;
+
+ /* 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)
+ return list_size;
+
+ /* Buffer is too small to fit the results */
+ if(list_size > size) {
+ errno = ERANGE;
+ return -1;
+ }
+
+ /* Convert from pascal strings to C strings */
+ len = list[0];
+ memmove(list, list + 1, list_size);
+
+ for(i = len; i < list_size; ) {
+ LOG(log_maxdebug, logtype_afpd, "len: %d, i: %d", len, i);
+
+ len = list[i];
+ list[i] = '\0';
+ i += len + 1;
+ }
+
+ return list_size;
}
#endif
#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);
+ return extattr_delete_file(path, EXTATTR_NAMESPACE_USER, uname);
#elif defined(HAVE_ATTR_REMOVE)
int flags = 0;
char *attrname = strchr(name,'.') + 1;
#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);
+ return extattr_delete_link(path, EXTATTR_NAMESPACE_USER, uname);
#elif defined(HAVE_ATTR_REMOVE)
int flags = ATTR_DONTFOLLOW;
char *attrname = strchr(name,'.') + 1;
#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);
+ retval = extattr_get_file(path, EXTATTR_NAMESPACE_USER, uname, NULL, 0);
if (retval < 0) {
/* REPLACE attribute, that doesn't exist */
if (flags & XATTR_REPLACE && errno == ENOATTR) {
}
}
}
- retval = extattr_set_file(path, attrnamespace, attrname, value, size);
+ retval = extattr_set_file(path, EXTATTR_NAMESPACE_USER, uname, value, size);
return (retval < 0) ? -1 : 0;
#elif defined(HAVE_ATTR_SET)
int myflags = 0;
#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);
+ retval = extattr_get_link(path, EXTATTR_NAMESPACE_USER, uname, NULL, 0);
if (retval < 0) {
/* REPLACE attribute, that doesn't exist */
if (flags & XATTR_REPLACE && errno == ENOATTR) {
}
}
- retval = extattr_set_link(path, attrnamespace, attrname, value, size);
+ retval = extattr_set_link(path, EXTATTR_NAMESPACE_USER, uname, value, size);
return (retval < 0) ? -1 : 0;
#elif defined(HAVE_ATTR_SET)
int myflags = ATTR_DONTFOLLOW;
#endif
}
-/* copy EA, from LGPL2.1 libattr attr_copy_file.c
- should use fgetxattr? We don't have them but they are in Samba.
- Or add a sys_copyfxattr? Currently it's only call by afp_copyfile so we can open
- the both files for reading and get a fd.
-
- Or don't use sys_xxx and copy all attributes.
-
-*/
-int sys_copyxattr(const char *src_path, const char *dst_path)
-{
-#if defined(HAVE_LISTXATTR) && defined(HAVE_GETXATTR) && defined(HAVE_SETXATTR)
- int ret = 0;
- ssize_t size;
- char *names = NULL, *end_names, *name, *value = NULL;
- unsigned int setxattr_ENOTSUP = 0;
-
- size = sys_listxattr(src_path, NULL, 0);
- if (size < 0) {
- if (errno != ENOSYS && errno != ENOTSUP) {
- ret = -1;
- }
- goto getout;
- }
- names = malloc(size+1);
- if (names == NULL) {
- ret = -1;
- goto getout;
- }
- size = sys_listxattr(src_path, names, size);
- if (size < 0) {
- ret = -1;
- goto getout;
- } else {
- names[size] = '\0';
- end_names = names + size;
- }
-
- for (name = names; name != end_names; name = strchr(name, '\0') + 1) {
- void *old_value;
-
- /* check if this attribute shall be preserved */
- if (!*name)
- continue;
-
- size = sys_getxattr (src_path, name, NULL, 0);
- if (size < 0) {
- ret = -1;
- continue;
- }
- value = realloc(old_value = value, size);
- if (size != 0 && value == NULL) {
- free(old_value);
- ret = -1;
- }
- size = sys_getxattr(src_path, name, value, size);
- if (size < 0) {
- ret = -1;
- continue;
- }
- if (sys_setxattr(dst_path, name, value, size, 0) != 0) {
- if (errno == ENOTSUP)
- setxattr_ENOTSUP++;
- else {
- if (errno == ENOSYS) {
- ret = -1;
- /* no hope of getting any further */
- break;
- } else {
- ret = -1;
- }
- }
- }
- }
- if (setxattr_ENOTSUP) {
- errno = ENOTSUP;
- ret = -1;
- }
-getout:
- free(value);
- free(names);
- return ret;
-#else
- /* FIXME same for solaris */
- return 0;
-#endif
-}
-
/**************************************************************************
helper functions for Solaris' EA support
****************************************************************************/
static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size)
{
ssize_t len = 0;
- int stop = 0;
DIR *dirp;
struct dirent *de;
int newfd = dup(attrdirfd);
}
if (closedir(dirp) == -1) {
- LOG(log_debug, logtype_default, "closedir dirp failed: %s\n",strerror(errno));
+ LOG(log_error, logtype_default, "closedir dirp: %s",strerror(errno));
return -1;
}
return len;
{
int filedes = attropen(path, attrpath, oflag, mode);
if (filedes == -1) {
- LOG(log_maxdebug, logtype_default, "attropen FAILED: path: %s, name: %s, errno: %s\n",path,attrpath,strerror(errno));
+ if (errno != ENOENT)
+ LOG(log_error, logtype_default, "attropen(\"%s\", ea:'%s'): %s",
+ path, attrpath, strerror(errno));
+ errno = ENOATTR;
}
return filedes;
}
{
int filedes = openat(fildes, path, oflag, mode);
if (filedes == -1) {
- LOG(log_maxdebug, logtype_default, "openat FAILED: fd: %s, path: %s, errno: %s\n",filedes,path,strerror(errno));
+ LOG(log_error, logtype_default, "openat(\"%s\"): %s",
+ path, strerror(errno));
}
return filedes;
}
if ((ftruncate(attrfd, 0) == 0) && (write(attrfd, value, size) == size)) {
return 0;
} else {
- LOG(log_maxdebug, logtype_default, "solaris_write_xattr FAILED!\n");
+ LOG(log_error, logtype_default, "solaris_write_xattr: %s",
+ strerror(errno));
return -1;
}
}
+
#endif /*HAVE_ATTROPEN*/
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