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-rw-r--r--source3/aparser/parser.c247
1 files changed, 120 insertions, 127 deletions
diff --git a/source3/aparser/parser.c b/source3/aparser/parser.c
index 000f361f26..f831393973 100644
--- a/source3/aparser/parser.c
+++ b/source3/aparser/parser.c
@@ -1,47 +1,12 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <malloc.h>
-#include <unistd.h>
-#include "parser.h"
+#include "includes.h"
-char *tab_depth(int depth)
-{
- static pstring spaces;
- memset(spaces, ' ', depth * 4);
- spaces[depth * 4] = 0;
- return spaces;
-}
-
-/****************************************************************************
-expand a pointer to be a particular size
-****************************************************************************/
-void *Realloc(void *p,size_t size)
-{
- void *ret=NULL;
-
- if (size == 0) {
- if (p) free(p);
- DEBUG(5,("Realloc asked for 0 bytes\n"));
- return NULL;
- }
-
- if (!p)
- ret = (void *)malloc(size);
- else
- ret = (void *)realloc(p,size);
-
- if (!ret)
- DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
-
- return(ret);
-}
/*******************************************************************
Attempt, if needed, to grow a data buffer.
Also depends on the data stream mode (io).
********************************************************************/
-BOOL prs_grow(prs_struct *ps, uint32 extra_space)
+BOOL io_grow(io_struct *ps, uint32 extra_space)
{
uint32 new_size;
char *new_data;
@@ -53,11 +18,11 @@ BOOL prs_grow(prs_struct *ps, uint32 extra_space)
/*
* We cannot grow the buffer if we're not reading
- * into the prs_struct, or if we don't own the memory.
+ * into the io_struct, or if we don't own the memory.
*/
if(UNMARSHALLING(ps) || !ps->is_dynamic) {
- DEBUG(0,("prs_grow: Buffer overflow - unable to expand buffer by %u bytes.\n",
+ DEBUG(0,("io_grow: Buffer overflow - unable to expand buffer by %u bytes.\n",
(unsigned int)extra_space));
return False;
}
@@ -76,7 +41,7 @@ BOOL prs_grow(prs_struct *ps, uint32 extra_space)
new_size = MAX(MAX_PDU_FRAG_LEN,extra_space);
if((new_data = malloc(new_size)) == NULL) {
- DEBUG(0,("prs_grow: Malloc failure for size %u.\n", (unsigned int)new_size));
+ DEBUG(0,("io_grow: Malloc failure for size %u.\n", (unsigned int)new_size));
return False;
}
memset(new_data, '\0', new_size );
@@ -88,7 +53,7 @@ BOOL prs_grow(prs_struct *ps, uint32 extra_space)
new_size = MAX(ps->buffer_size*2, ps->buffer_size + extra_space);
if ((new_data = Realloc(ps->data_p, new_size)) == NULL) {
- DEBUG(0,("prs_grow: Realloc failure for size %u.\n",
+ DEBUG(0,("io_grow: Realloc failure for size %u.\n",
(unsigned int)new_size));
return False;
}
@@ -104,14 +69,14 @@ BOOL prs_grow(prs_struct *ps, uint32 extra_space)
Ensure we can read/write to a given offset.
********************************************************************/
-char *prs_mem_get(prs_struct *ps, uint32 extra_size)
+char *io_mem_get(io_struct *ps, uint32 extra_size)
{
if(UNMARSHALLING(ps)) {
/*
* If reading, ensure that we can read the requested size item.
*/
if (ps->data_offset + extra_size > ps->buffer_size) {
- DEBUG(0,("prs_mem_get: reading data of size %u would overrun buffer.\n",
+ DEBUG(0,("io_mem_get: reading data of size %u would overrun buffer.\n",
(unsigned int)extra_size ));
return NULL;
}
@@ -119,7 +84,7 @@ char *prs_mem_get(prs_struct *ps, uint32 extra_size)
/*
* Writing - grow the buffer if needed.
*/
- if(!prs_grow(ps, extra_size))
+ if(!io_grow(ps, extra_size))
return False;
}
return &ps->data_p[ps->data_offset];
@@ -129,7 +94,7 @@ char *prs_mem_get(prs_struct *ps, uint32 extra_size)
Initialise a parse structure - malloc the data if requested.
********************************************************************/
-BOOL prs_init(prs_struct *ps, uint32 size, BOOL io)
+BOOL io_init(io_struct *ps, uint32 size, BOOL io)
{
ZERO_STRUCTP(ps);
ps->io = io;
@@ -142,7 +107,7 @@ BOOL prs_init(prs_struct *ps, uint32 size, BOOL io)
if (size != 0) {
ps->buffer_size = size;
if((ps->data_p = (char *)malloc((size_t)size)) == NULL) {
- DEBUG(0,("prs_init: malloc fail for %u bytes.\n", (unsigned int)size));
+ DEBUG(0,("io_init: malloc fail for %u bytes.\n", (unsigned int)size));
return False;
}
ps->is_dynamic = True; /* We own this memory. */
@@ -157,7 +122,7 @@ BOOL prs_init(prs_struct *ps, uint32 size, BOOL io)
XXXX side-effect of this function is to increase the debug depth XXXX
********************************************************************/
-void prs_debug(prs_struct *ps, int depth, char *desc, char *fn_name)
+void io_debug(io_struct *ps, int depth, char *desc, char *fn_name)
{
DEBUG(5+depth, ("%s%06x %s %s\n", tab_depth(depth), ps->data_offset, fn_name, desc));
}
@@ -167,13 +132,13 @@ void prs_debug(prs_struct *ps, int depth, char *desc, char *fn_name)
zeros.
********************************************************************/
-BOOL io_align2(prs_struct *ps, int offset)
+BOOL io_align2(io_struct *ps, int offset)
{
uint32 mod = (ps->data_offset + offset) & (2-1);
if (mod != 0) {
uint32 extra_space = (2 - mod);
- if(!prs_grow(ps, extra_space))
+ if(!io_grow(ps, extra_space))
return False;
memset(&ps->data_p[ps->data_offset], '\0', (size_t)extra_space);
ps->data_offset += extra_space;
@@ -182,13 +147,13 @@ BOOL io_align2(prs_struct *ps, int offset)
return True;
}
-BOOL io_align4(prs_struct *ps, int offset)
+BOOL io_align4(io_struct *ps, int offset)
{
uint32 mod = (ps->data_offset + offset) & (4-1);
if (mod != 0) {
uint32 extra_space = (4 - mod);
- if(!prs_grow(ps, extra_space))
+ if(!io_grow(ps, extra_space))
return False;
memset(&ps->data_p[ps->data_offset], '\0', (size_t)extra_space);
ps->data_offset += extra_space;
@@ -202,7 +167,7 @@ BOOL io_align4(prs_struct *ps, int offset)
zeros.
********************************************************************/
-BOOL prs_align(prs_struct *ps, int align)
+BOOL io_align(io_struct *ps, int align)
{
uint32 mod = ps->data_offset & (align-1);
@@ -210,7 +175,7 @@ BOOL prs_align(prs_struct *ps, int align)
if (align != 0 && mod != 0) {
uint32 extra_space = (align - mod);
- if(!prs_grow(ps, extra_space))
+ if(!io_grow(ps, extra_space))
return False;
memset(&ps->data_p[ps->data_offset], '\0', (size_t)extra_space);
ps->data_offset += extra_space;
@@ -220,21 +185,14 @@ BOOL prs_align(prs_struct *ps, int align)
}
-void print_asc(int level, unsigned char *buf,int len)
-{
- int i;
- for (i=0;i<len;i++)
- DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
-}
-
/*******************************************************************
read from a socket into memory.
********************************************************************/
-BOOL prs_read(prs_struct *ps, int fd, size_t len, int timeout)
+BOOL io_read(io_struct *ps, int fd, size_t len, int timeout)
{
BOOL ok;
size_t prev_size = ps->buffer_size;
- if (!prs_grow(ps, len))
+ if (!io_grow(ps, len))
{
return False;
}
@@ -250,52 +208,19 @@ BOOL prs_read(prs_struct *ps, int fd, size_t len, int timeout)
return ok;
}
-void dump_data(int level,char *buf1,int len)
-{
- unsigned char *buf = (unsigned char *)buf1;
- int i=0;
- if (len<=0) return;
-
- DEBUG(level,("[%03X] ",i));
- for (i=0;i<len;) {
- DEBUG(level,("%02X ",(int)buf[i]));
- i++;
- if (i%8 == 0) DEBUG(level,(" "));
- if (i%16 == 0) {
- print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
- print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
- if (i<len) DEBUG(level,("[%03X] ",i));
- }
- }
- if (i%16) {
- int n;
-
- n = 16 - (i%16);
- DEBUG(level,(" "));
- if (n>8) DEBUG(level,(" "));
- while (n--) DEBUG(level,(" "));
-
- n = MIN(8,i%16);
- print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
- n = (i%16) - n;
- if (n>0) print_asc(level,&buf[i-n],n);
- DEBUG(level,("\n"));
- }
-}
-
/*******************************************************************
do IO on a uint32.
********************************************************************/
-BOOL io_uint32(char *name, prs_struct *ps, int depth, uint32 *data32, unsigned flags)
+BOOL io_uint32(char *name, io_struct *ps, int depth, uint32 *data32, unsigned flags)
{
char *q;
if (!(flags & PARSE_SCALARS)) return True;
- if (!prs_align(ps, 4)) return False;
+ if (!io_align(ps, 4)) return False;
- q = prs_mem_get(ps, sizeof(uint32));
+ q = io_mem_get(ps, sizeof(uint32));
if (q == NULL) return False;
DBG_RW_IVAL(name, depth, ps->data_offset, ps->io, ps->bigendian_data, q, *data32)
@@ -307,18 +232,18 @@ BOOL io_uint32(char *name, prs_struct *ps, int depth, uint32 *data32, unsigned f
/*******************************************************************
do IO on a uint16.
********************************************************************/
-BOOL io_uint16(char *name, prs_struct *ps, int depth, uint16 *data16, unsigned flags)
+BOOL io_uint16(char *name, io_struct *ps, int depth, uint16 *data16, unsigned flags)
{
char *q;
if (!(flags & PARSE_SCALARS)) return True;
- if (!prs_align(ps, 2)) return False;
+ if (!io_align(ps, 2)) return False;
- q = prs_mem_get(ps, sizeof(uint16));
+ q = io_mem_get(ps, sizeof(uint16));
if (q == NULL) return False;
- DBG_RW_IVAL(name, depth, ps->data_offset, ps->io, ps->bigendian_data, q, *data16)
+ DBG_RW_SVAL(name, depth, ps->data_offset, ps->io, ps->bigendian_data, q, *data16)
ps->data_offset += sizeof(uint16);
return True;
@@ -327,13 +252,13 @@ BOOL io_uint16(char *name, prs_struct *ps, int depth, uint16 *data16, unsigned f
/*******************************************************************
do IO on a uint8.
********************************************************************/
-BOOL io_uint8(char *name, prs_struct *ps, int depth, uint8 *data8, unsigned flags)
+BOOL io_uint8(char *name, io_struct *ps, int depth, uint8 *data8, unsigned flags)
{
char *q;
if (!(flags & PARSE_SCALARS)) return True;
- q = prs_mem_get(ps, sizeof(uint8));
+ q = io_mem_get(ps, sizeof(uint8));
if (q == NULL) return False;
DBG_RW_IVAL(name, depth, ps->data_offset, ps->io, ps->bigendian_data, q, *data8)
@@ -345,7 +270,7 @@ BOOL io_uint8(char *name, prs_struct *ps, int depth, uint8 *data8, unsigned flag
/*******************************************************************
do IO on a pointer
********************************************************************/
-BOOL io_pointer(char *desc, prs_struct *ps, int depth, void **p, unsigned flags)
+BOOL io_pointer(char *desc, io_struct *ps, int depth, void **p, unsigned flags)
{
uint32 v;
@@ -360,7 +285,7 @@ BOOL io_pointer(char *desc, prs_struct *ps, int depth, void **p, unsigned flags)
/*******************************************************************
Stream a null-terminated string.
********************************************************************/
-BOOL io_string(char *name, prs_struct *ps, int depth, char **str, unsigned flags)
+BOOL io_SMBSTR(char *name, io_struct *ps, int depth, char **str, unsigned flags)
{
char *q;
uint8 *start;
@@ -371,7 +296,7 @@ BOOL io_string(char *name, prs_struct *ps, int depth, char **str, unsigned flags
if (!(flags & PARSE_SCALARS)) return True;
if (UNMARSHALLING(ps)) {
- *str = prs_mem_get(ps, 0);
+ *str = io_mem_get(ps, 0);
if (*str == NULL)
return False;
len = strlen(*str);
@@ -379,25 +304,17 @@ BOOL io_string(char *name, prs_struct *ps, int depth, char **str, unsigned flags
}
else
{
- len = strlen(*str);
+ len = strlen(*str)+1;
start = (uint8*)q;
for(i = 0; i < len; i++) {
- q = prs_mem_get(ps, 1);
+ q = io_mem_get(ps, 1);
if (q == NULL)
return False;
RW_CVAL(ps->io, q, (*str)[i],0);
- if ((*str)[i] == 0)
- break;
ps->data_offset++;
}
-
- /* The terminating null. */
- (*str)[i] = '\0';
- RW_CVAL(ps->io, q, (*str)[i], 0);
-
- ps->data_offset++;
}
DEBUG(5,("%s%04x %s: %s\n", tab_depth(depth),
@@ -408,16 +325,14 @@ BOOL io_string(char *name, prs_struct *ps, int depth, char **str, unsigned flags
/******************************************************************
do IO on a byte array
********************************************************************/
-BOOL io_uint8s(char *name, prs_struct *ps, int depth, uint8 **data8s, int len, unsigned flags)
+BOOL io_uint8s(char *name, io_struct *ps, int depth, uint8 **data8s, int len, unsigned flags)
{
char *q;
size_t num_bytes = len * sizeof(uint8);
if (!(flags & PARSE_SCALARS)) return True;
- if (!prs_align(ps, 2)) return False;
-
- q = prs_mem_get(ps, num_bytes);
+ q = io_mem_get(ps, num_bytes);
if (q == NULL) return False;
if (MARSHALLING(ps))
@@ -427,26 +342,92 @@ BOOL io_uint8s(char *name, prs_struct *ps, int depth, uint8 **data8s, int len, u
else
{
*data8s = q;
- dump_data(depth+5, q, num_bytes);
+ dump_data(depth+5, *data8s, num_bytes);
}
ps->data_offset += num_bytes;
return True;
}
+/******************************************************************
+ do IO on a fixed-size byte array
+ ********************************************************************/
+BOOL io_uint8s_fixed(char *name, io_struct *ps, int depth, uint8 *data8s, int len, unsigned flags)
+{
+ char *q;
+ size_t num_bytes = len * sizeof(uint8);
+
+ if (!(flags & PARSE_SCALARS)) return True;
+
+ q = io_mem_get(ps, num_bytes);
+ if (q == NULL) return False;
+
+ DBG_RW_PCVAL(True, name, depth, ps->data_offset, ps->io, q, data8s, len)
+ ps->data_offset += num_bytes;
+
+ return True;
+}
+
+
+/******************************************************************
+ do IO on an io (eh?? :)
+ ********************************************************************/
+BOOL io_io_struct(char *name, io_struct *ps, int depth, io_struct *io, unsigned flags)
+{
+ char *q;
+ uint16 len;
+
+ if (!(flags & PARSE_SCALARS)) return True;
+ q = io_mem_get(ps, sizeof(uint16));
+ if (q == NULL) return False;
+
+ /* length first */
+ if (MARSHALLING(ps))
+ {
+ len = io->data_offset;
+ }
+ if (!io_uint16("len", ps, depth+1, &len, flags))
+ {
+ return False;
+ }
+ if (UNMARSHALLING(ps))
+ {
+ if (!io_init(io, len, UNMARSHALL))
+ {
+ return False;
+ }
+ }
+
+ /* now data */
+ q = io_mem_get(ps, len * sizeof(uint8));
+ if (q == NULL) return False;
+
+ if (MARSHALLING(ps))
+ {
+ DBG_RW_PCVAL(False, name, depth+1, ps->data_offset, ps->io, q, io->data_p, len)
+ }
+ else
+ {
+ io->data_p = q;
+ dump_data(depth+5, q, len);
+ }
+ ps->data_offset += len;
+
+ return True;
+}
/******************************************************************
do IO on a unicode array
********************************************************************/
-BOOL io_wstring(char *name, prs_struct *ps, int depth, uint16 *data16s, int len, unsigned flags)
+BOOL io_wstring(char *name, io_struct *ps, int depth, uint16 *data16s, int len, unsigned flags)
{
char *q;
if (!(flags & PARSE_SCALARS)) return True;
- if (!prs_align(ps, 2)) return False;
+ if (!io_align(ps, 2)) return False;
- q = prs_mem_get(ps, len * sizeof(uint16));
+ q = io_mem_get(ps, len * sizeof(uint16));
if (q == NULL) return False;
DBG_RW_PSVAL(False, name, depth, ps->data_offset, ps->io, ps->bigendian_data, q, data16s, len)
@@ -459,7 +440,19 @@ BOOL io_wstring(char *name, prs_struct *ps, int depth, uint16 *data16s, int len,
/******************************************************************
allocate some memory for a parse structure
********************************************************************/
-BOOL io_alloc(char *name, prs_struct *ps, void **ptr, unsigned size)
+void io_free(io_struct *ps)
+{
+ if (ps->is_dynamic && ps->data_p)
+ {
+ free(ps->data_p);
+ ps->data_p = NULL;
+ }
+}
+
+/******************************************************************
+allocate some memory for a parse structure
+ ********************************************************************/
+BOOL io_alloc(char *name, io_struct *ps, void **ptr, unsigned size)
{
(*ptr) = (void *)malloc(size);
if (*ptr) return True;
@@ -469,7 +462,7 @@ BOOL io_alloc(char *name, prs_struct *ps, void **ptr, unsigned size)
/******************************************************************
realloc some memory for a parse structure
********************************************************************/
-BOOL io_realloc(char *name, prs_struct *ps, void **ptr, unsigned size)
+BOOL io_realloc(char *name, io_struct *ps, void **ptr, unsigned size)
{
(*ptr) = (void *)Realloc(*ptr, size);
if (*ptr) return True;
generated by cgit (git 2.34.1) at 2024-11-11 12:59:43 +0000