* Copyright (c) 2000-2011 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
* but we cannot count on their alignment anyway.
*/
-#define fxdr_unsigned(t, v) ((t)ntohl((uint32_t)(v)))
-#define txdr_unsigned(v) (htonl((uint32_t)(v)))
+#define fxdr_unsigned(t, v) ((t)ntohl((uint32_t)(v)))
+#define txdr_unsigned(v) (htonl((uint32_t)(v)))
-#define fxdr_hyper(f, t) { \
+#define fxdr_hyper(f, t) { \
((uint32_t *)(t))[_QUAD_HIGHWORD] = ntohl(((uint32_t *)(f))[0]); \
((uint32_t *)(t))[_QUAD_LOWWORD] = ntohl(((uint32_t *)(f))[1]); \
}
-#define txdr_hyper(f, t) { \
+#define txdr_hyper(f, t) { \
((uint32_t *)(t))[0] = htonl(((uint32_t *)(f))[_QUAD_HIGHWORD]); \
((uint32_t *)(t))[1] = htonl(((uint32_t *)(f))[_QUAD_LOWWORD]); \
}
*
* generalized functionality for managing the building/dissecting of XDR data
*/
-typedef enum xdrbuf_type { XDRBUF_BUFFER=1 } xdrbuf_type;
+typedef enum xdrbuf_type {
+ XDRBUF_NONE = 0,
+ XDRBUF_BUFFER = 1,
+} xdrbuf_type;
struct xdrbuf {
union {
struct {
- char * xbb_base; /* base address of buffer */
- uint32_t xbb_size; /* size of buffer */
- uint32_t xbb_len; /* length of data in buffer */
+ char * xbb_base; /* base address of buffer */
+ uint32_t xbb_size; /* size of buffer */
+ uint32_t xbb_len; /* length of data in buffer */
} xb_buffer;
} xb_u;
- char * xb_ptr; /* pointer to current position */
- size_t xb_left; /* bytes remaining in current buffer */
- size_t xb_growsize; /* bytes to allocate when growing */
- xdrbuf_type xb_type; /* type of xdr buffer */
- uint32_t xb_flags; /* XB_* (see below) */
+ char * xb_ptr; /* pointer to current position */
+ size_t xb_left; /* bytes remaining in current buffer */
+ size_t xb_growsize; /* bytes to allocate when growing */
+ xdrbuf_type xb_type; /* type of xdr buffer */
+ uint32_t xb_flags; /* XB_* (see below) */
};
-#define XB_CLEANUP 0x0001 /* needs cleanup */
+#define XB_CLEANUP 0x0001 /* needs cleanup */
-#define XDRWORD 4 /* the basic XDR building block is a 4 byte (32 bit) word */
-#define xdr_rndup(a) (((a)+3)&(~0x3)) /* round up to XDRWORD size */
-#define xdr_pad(a) (xdr_rndup(a) - (a)) /* calculate round up padding */
+#define XDRWORD 4 /* the basic XDR building block is a 4 byte (32 bit) word */
+#define xdr_rndup(a) (((a)+3)&(~0x3)) /* round up to XDRWORD size */
+#define xdr_pad(a) (xdr_rndup(a) - (a)) /* calculate round up padding */
void xb_init(struct xdrbuf *, xdrbuf_type);
void xb_init_buffer(struct xdrbuf *, char *, size_t);
xbp->xb_growsize = 512;
xbp->xb_ptr = buf;
xbp->xb_left = buflen;
- if (buf) /* when using an existing buffer, xb code should skip cleanup */
+ if (buf) { /* when using an existing buffer, xb code should skip cleanup */
xbp->xb_flags &= ~XB_CLEANUP;
+ }
}
/*
char *
xb_buffer_base(struct xdrbuf *xbp)
{
- return (xbp->xb_u.xb_buffer.xbb_base);
+ return xbp->xb_u.xb_buffer.xbb_base;
}
/*
void
xb_cleanup(struct xdrbuf *xbp)
{
- if (!(xbp->xb_flags & XB_CLEANUP))
+ if (!(xbp->xb_flags & XB_CLEANUP)) {
return;
+ }
switch (xbp->xb_type) {
case XDRBUF_BUFFER:
- if (xbp->xb_u.xb_buffer.xbb_base)
+ if (xbp->xb_u.xb_buffer.xbb_base) {
xb_free(xbp->xb_u.xb_buffer.xbb_base);
+ }
+ break;
+ default:
break;
}
xbp->xb_flags &= ~XB_CLEANUP;
case XDRBUF_BUFFER:
xbp->xb_u.xb_buffer.xbb_len = xbp->xb_ptr - xbp->xb_u.xb_buffer.xbb_base;
break;
+ default:
+ break;
}
}
uint32_t tlen;
while (len) {
- if (xbp->xb_left <= 0)
- return (EBADRPC);
+ if (xbp->xb_left <= 0) {
+ return EBADRPC;
+ }
tlen = MIN(xbp->xb_left, len);
if (tlen) {
xbp->xb_ptr += tlen;
len -= tlen;
}
}
- return (0);
+ return 0;
}
/*
case XDRBUF_BUFFER:
offset = xbp->xb_ptr - xbp->xb_u.xb_buffer.xbb_base;
break;
+ default:
+ break;
}
- return (offset);
+ return offset;
}
/*
int
xb_seek(struct xdrbuf *xbp, uint32_t offset)
{
-
switch (xbp->xb_type) {
case XDRBUF_BUFFER:
xbp->xb_ptr = xbp->xb_u.xb_buffer.xbb_base + offset;
xbp->xb_left = xbp->xb_u.xb_buffer.xbb_len - offset;
break;
+ default:
+ break;
}
- return (0);
+ return 0;
}
/*
#else
buf = malloc(size);
#endif
- return (buf);
+ return buf;
}
/*
* free a chunk of memory allocated with xb_malloc()
oldsize = xbp->xb_u.xb_buffer.xbb_size;
oldbuf = xbp->xb_u.xb_buffer.xbb_base;
newsize = oldsize + xbp->xb_growsize;
+ if (newsize < oldsize) {
+ return ENOMEM;
+ }
newbuf = xb_malloc(newsize);
- if (newbuf == NULL)
- return (ENOMEM);
+ if (newbuf == NULL) {
+ return ENOMEM;
+ }
if (oldbuf != NULL) {
bcopy(oldbuf, newbuf, oldsize);
xb_free(oldbuf);
xbp->xb_ptr = newbuf + oldsize;
xbp->xb_left = xbp->xb_growsize;
break;
+ default:
+ break;
}
- return (0);
+ return 0;
}
/*
while (len) {
if (xbp->xb_left <= 0) {
/* need more space */
- if ((error = xb_grow(xbp)))
- return (error);
- if (xbp->xb_left <= 0)
- return (ENOMEM);
+ if ((error = xb_grow(xbp))) {
+ return error;
+ }
+ if (xbp->xb_left <= 0) {
+ return ENOMEM;
+ }
}
tlen = MIN(xbp->xb_left, len);
if (tlen) {
if (count) {
- if (tlen > count)
+ if (tlen > count) {
tlen = count;
+ }
bcopy(buf, xbp->xb_ptr, tlen);
} else {
bzero(xbp->xb_ptr, tlen);
}
}
}
- return (0);
+ return 0;
}
/*
/* copy in "count" bytes and zero out any pad bytes */
while (len) {
- if (xbp->xb_left <= 0)
- return (ENOMEM);
+ if (xbp->xb_left <= 0) {
+ return ENOMEM;
+ }
tlen = MIN(xbp->xb_left, len);
if (tlen) {
if (count) {
- if (tlen > count)
+ if (tlen > count) {
tlen = count;
+ }
bcopy(xbp->xb_ptr, buf, tlen);
}
xbp->xb_ptr += tlen;
}
}
}
- return (0);
+ return 0;
}
#endif /* _NFS_XDR_SUBS_FUNCS_ */
/* finalize the data that has been added to the buffer */
#define xb_build_done(E, XB) \
do { \
- if (E) break; \
- xb_set_cur_buf_len(XB); \
+ if (E) break; \
+ xb_set_cur_buf_len(XB); \
} while (0)
/* add a 32-bit value */
#define xb_add_32(E, XB, VAL) \
do { \
- uint32_t __tmp; \
- if (E) break; \
- __tmp = txdr_unsigned(VAL); \
- (E) = xb_add_bytes((XB), (void*)&__tmp, XDRWORD, 0); \
+ uint32_t __tmp; \
+ if (E) break; \
+ __tmp = txdr_unsigned(VAL); \
+ (E) = xb_add_bytes((XB), (void*)&__tmp, XDRWORD, 0); \
} while (0)
/* add a 64-bit value */
#define xb_add_64(E, XB, VAL) \
do { \
- uint64_t __tmp1, __tmp2; \
- if (E) break; \
- __tmp1 = (VAL); \
- txdr_hyper(&__tmp1, &__tmp2); \
- (E) = xb_add_bytes((XB), (char*)&__tmp2, 2 * XDRWORD, 0); \
+ uint64_t __tmp1, __tmp2; \
+ if (E) break; \
+ __tmp1 = (VAL); \
+ txdr_hyper(&__tmp1, &__tmp2); \
+ (E) = xb_add_bytes((XB), (char*)&__tmp2, 2 * XDRWORD, 0); \
} while (0)
/* add an array of XDR words */
#define xb_add_word_array(E, XB, A, LEN) \
do { \
- uint32_t __i; \
- xb_add_32((E), (XB), (LEN)); \
- for (__i=0; __i < (uint32_t)(LEN); __i++) \
- xb_add_32((E), (XB), (A)[__i]); \
+ uint32_t __i; \
+ xb_add_32((E), (XB), (LEN)); \
+ for (__i=0; __i < (uint32_t)(LEN); __i++) \
+ xb_add_32((E), (XB), (A)[__i]); \
} while (0)
-#define xb_add_bitmap(E, XB, B, LEN) xb_add_word_array((E), (XB), (B), (LEN))
+#define xb_add_bitmap(E, XB, B, LEN) xb_add_word_array((E), (XB), (B), (LEN))
/* add a file handle */
#define xb_add_fh(E, XB, FHP, FHLEN) \
do { \
- xb_add_32((E), (XB), (FHLEN)); \
- if (E) break; \
- (E) = xb_add_bytes((XB), (char*)(FHP), (FHLEN), 0); \
+ xb_add_32((E), (XB), (FHLEN)); \
+ if (E) break; \
+ (E) = xb_add_bytes((XB), (char*)(FHP), (FHLEN), 0); \
} while (0)
/* add a string */
#define xb_add_string(E, XB, S, LEN) \
do { \
- xb_add_32((E), (XB), (LEN)); \
- if (E) break; \
- (E) = xb_add_bytes((XB), (const char*)(S), (LEN), 0); \
+ xb_add_32((E), (XB), (LEN)); \
+ if (E) break; \
+ (E) = xb_add_bytes((XB), (const char*)(S), (LEN), 0); \
} while (0)
/* skip past data in the buffer */
#define xb_skip(E, XB, LEN) \
do { \
- if (E) break; \
- (E) = xb_advance((XB), (LEN)); \
+ if (E) break; \
+ (E) = xb_advance((XB), (LEN)); \
} while (0)
/* get a 32-bit value */
#define xb_get_32(E, XB, LVAL) \
do { \
- uint32_t __tmp; \
- if (E) break; \
- (E) = xb_get_bytes((XB), (char*)&__tmp, XDRWORD, 0); \
- if (E) break; \
- (LVAL) = fxdr_unsigned(uint32_t, __tmp); \
+ uint32_t __tmp; \
+ if (E) break; \
+ (E) = xb_get_bytes((XB), (char*)&__tmp, XDRWORD, 0); \
+ if (E) break; \
+ (LVAL) = fxdr_unsigned(uint32_t, __tmp); \
} while (0)
/* get a 64-bit value */
#define xb_get_64(E, XB, LVAL) \
do { \
- uint64_t __tmp; \
- if (E) break; \
- (E) = xb_get_bytes((XB), (char*)&__tmp, 2 * XDRWORD, 0); \
- if (E) break; \
- fxdr_hyper(&__tmp, &(LVAL)); \
+ uint64_t __tmp; \
+ if (E) break; \
+ (E) = xb_get_bytes((XB), (char*)&__tmp, 2 * XDRWORD, 0); \
+ if (E) break; \
+ fxdr_hyper(&__tmp, &(LVAL)); \
} while (0)
/* get an array of XDR words (of a given expected/maximum length) */
#define xb_get_word_array(E, XB, A, LEN) \
do { \
- uint32_t __len = 0, __i; \
- xb_get_32((E), (XB), __len); \
- if (E) break; \
- for (__i=0; __i < MIN(__len, (uint32_t)(LEN)); __i++) \
- xb_get_32((E), (XB), (A)[__i]); \
- if (E) break; \
- for (; __i < __len; __i++) \
- xb_skip((E), (XB), XDRWORD); \
- for (; __i < (uint32_t)(LEN); __i++) \
- (A)[__i] = 0; \
- (LEN) = __len; \
+ uint32_t __len = 0, __i; \
+ xb_get_32((E), (XB), __len); \
+ if (E) break; \
+ for (__i=0; __i < MIN(__len, (uint32_t)(LEN)); __i++) \
+ xb_get_32((E), (XB), (A)[__i]); \
+ if (E) break; \
+ for (; __i < __len; __i++) \
+ xb_skip((E), (XB), XDRWORD); \
+ for (; __i < (uint32_t)(LEN); __i++) \
+ (A)[__i] = 0; \
+ (LEN) = __len; \
} while (0)
-#define xb_get_bitmap(E, XB, B, LEN) xb_get_word_array((E), (XB), (B), (LEN))
+#define xb_get_bitmap(E, XB, B, LEN) xb_get_word_array((E), (XB), (B), (LEN))
#endif /* __APPLE_API_PRIVATE */
#endif /* _NFS_XDR_SUBS_H_ */
projects / apple / xnu.git / blobdiff