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binutils-gdb
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1999-01-16 Fernando Nasser <fnasser@totem.to.cygnus.com> 

* remote.c (remote_query): new function - creates proper interface
        to the remote protocol "q" command.
This commit is contained in:
Fernando Nasser 1999-01-16 19:01:23 +00:00
parent bc7d553ce3
commit 2bef607561
2 changed files with 76 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
1999-01-16 Fernando Nasser <fnasser@totem.to.cygnus.com>
* remote.c (remote_query): new function - creates proper interface
to the remote protocol "q" command.
Fri Jan 15 17:11:48 EST 1999 Zdenek Radouch (radouch@cygnus.com)

72
gdb/remote.c
View File

@ -286,6 +286,8 @@ static int ishex PARAMS ((int ch, int *val));
static int stubhex PARAMS ((int ch));
static int remote_query PARAMS ((char, char *, char *, int *));
static int hexnumstr PARAMS ((char *, ULONGEST));
static CORE_ADDR remote_address_masked PARAMS ((CORE_ADDR));
@ -2969,6 +2971,75 @@ the loaded file\n");
printf_filtered ("No loaded section named '%s'.\n", args);
}
static int
remote_query (query_type, buf, outbuf, bufsiz)
char query_type;
char *buf;
char *outbuf;
int *bufsiz;
{
int i;
char buf2[PBUFSIZ];
char *p2 = &buf2[0];
char *p = buf;
if (! bufsiz)
error ("null pointer to remote bufer size specified");
/* minimum outbuf size is PBUFSIZE - if bufsiz is not large enough let
the caller know and return what the minimum size is */
/* Note: a zero bufsiz can be used to query the minimum buffer size */
if ( *bufsiz < PBUFSIZ )
{
*bufsiz = PBUFSIZ;
return -1;
}
/* except for querying the minimum buffer size, target must be open */
if (! remote_desc)
error ("remote query is only available after target open");
/* we only take uppercase letters as query types, at least for now */
if ( (query_type < 'A') || (query_type > 'Z') )
error ("invalid remote query type");
if (! buf)
error ("null remote query specified");
if (! outbuf)
error ("remote query requires a buffer to receive data");
outbuf[0] = '\0';
*p2++ = 'q';
*p2++ = query_type;
/* we used one buffer char for the remote protocol q command and another
for the query type. As the remote protocol encapsulation uses 4 chars
we have PBUFZIZ -6 left to pack the query string */
i = 0;
while ( buf[i] && (i < (PBUFSIZ - 7)) )
{
/* bad caller may have sent forbidden characters */
if ( (!isprint(buf[i])) || (buf[i] == '$') || (buf[i] == '#') )
error ("illegal characters in query string");
*p2++ = buf[i];
i++;
}
*p2 = buf[i];
if ( buf[i] )
error ("query larger than avaiable buffer");
i = putpkt (buf2);
if ( i < 0 ) return i;
getpkt (outbuf, 0);
return 0;
}
static void
packet_command (args, from_tty)
char *args;
@ -3179,6 +3250,7 @@ Specify the serial device it is connected to (e.g. /dev/ttya).";
remote_ops.to_mourn_inferior = remote_mourn;
remote_ops.to_thread_alive = remote_thread_alive;
remote_ops.to_stop = remote_stop;
remote_ops.to_query = remote_query;
remote_ops.to_stratum = process_stratum;
remote_ops.to_has_all_memory = 1;
remote_ops.to_has_memory = 1;