diff options
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/remote.c | 72 |
2 files changed, 76 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 8e52b1f..b6ae2ed 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -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) diff --git a/gdb/remote.c b/gdb/remote.c index b4f7ce6..b9b314c 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -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; |