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diff -Nrup gdb-6.4.orig/gdb/printcmd.c gdb-6.4/gdb/printcmd.c
--- gdb-6.4.orig/gdb/printcmd.c 2005-02-24 08:51:34.000000000 -0500
+++ gdb-6.4/gdb/printcmd.c 2005-12-08 23:17:09.000000000 -0500
@@ -942,6 +942,195 @@ print_command (char *exp, int from_tty)
print_command_1 (exp, 0, 1);
}
+static void
+scanmem_command(char *exp, int from_tty)
+{
+ struct expression *expr;
+ struct value *val;
+ struct format_data fmt;
+ CORE_ADDR addr;
+ unsigned char *data;
+ unsigned char *size;
+ unsigned char *pattern;
+ unsigned char typ;
+ unsigned char typc;
+ unsigned char my_buf[4];
+ unsigned int nfetch;
+ unsigned int len = 10;
+ unsigned int memsize;
+ unsigned int i;
+ int typi;
+ int errcode;
+
+ if (exp && *exp) {
+ struct type *type;
+ char *str_num = NULL;
+ char *string_to_seek = NULL;
+ char *tmp = strdup(exp);
+ char *c;
+
+ c = tmp;
+ if (*c == ' ')
+ while (*c && *c == ' ')
+ c++;
+
+ while (*c && *c != ' ')
+ c++;
+
+ *c = '\0';
+ c++;
+
+ while (*c && *c == ' ')
+ c++;
+
+ size = c;
+
+ while (*c && *c != ' ')
+ c++;
+
+ *c = '\0';
+ c++;
+
+ while (*c && *c == ' ')
+ c++;
+
+ typ = *c;
+ c++;
+
+ *c = '\0';
+ c++;
+
+ while (*c && *c == ' ')
+ c++;
+ pattern = c;
+
+ printf_filtered(">>addr %s: size %s: type:%c pattern:%s<< \n",
+ tmp, size, typ, pattern);
+
+ expr = parse_expression(tmp);
+ val = evaluate_expression(expr);
+
+ if (TYPE_CODE(value_type(val)) == TYPE_CODE_REF)
+ val = value_ind(val);
+
+ if (TYPE_CODE(value_type(val)) == TYPE_CODE_FUNC
+ && VALUE_LVAL(val) == lval_memory)
+ addr = VALUE_ADDRESS(val);
+ else
+ addr = value_as_address(val);
+
+ len = atoi(size);
+ data = xmalloc(len);
+ nfetch = partial_memory_read(addr, data, len, &errcode);
+
+ if (nfetch != len)
+ printf_filtered("we can read only %i bytes\n", nfetch);
+
+ switch (typ) {
+ case 's':
+ memsize = strlen(pattern);
+ if (nfetch < memsize) {
+ printf_filtered
+ ("we read only %i bytes and we seek for a pattern of %i bytes\n",
+ nfetch, memsize);
+ free(data);
+ free(tmp);
+ return;
+ }
+ for (i = 0; i <= (nfetch - memsize); i++, addr++) {
+ if (memcmp(data + i, pattern, memsize) == 0) {
+ printf_filtered("pattern match at ");
+ deprecated_print_address_numeric((addr), 1, gdb_stdout);
+ printf_filtered("\n");
+ }
+ }
+ break;
+ case 'i':
+ memsize = sizeof(int);
+ typi = atoi(pattern);
+
+ if (nfetch < memsize) {
+ printf_filtered
+ ("we read only %i bytes and we seek for a pattern of %i bytes\n",
+ nfetch, memsize);
+ free(data);
+ free(tmp);
+ return;
+ }
+ for (i = 0; i <= (nfetch - memsize); i++, addr++) {
+ int *pint;
+ pint = (unsigned char *) (data + i);
+ if (*pint == typi) {
+ printf_filtered("pattern match at ");
+ deprecated_print_address_numeric((addr), 1, gdb_stdout);
+ printf_filtered("\n");
+ }
+ }
+ break;
+ case 'a':
+ memsize = sizeof(unsigned long);
+ if (sscanf(pattern, "0x%x", &i) == 0) {
+ printf_filtered("cant convert to hexa %s\n", pattern);
+ break;
+ }
+ my_buf[0] = (unsigned char) ((i & 0x000000FF));
+ my_buf[1] = (unsigned char) ((i & 0x0000FF00) >> 8);
+ my_buf[2] = (unsigned char) ((i & 0x00FF0000) >> 16);
+ my_buf[3] = (unsigned char) ((i & 0xFF000000) >> 24);
+ if (nfetch < memsize) {
+ printf_filtered
+ ("we read only %i bytes and we seek for a pattern of %i bytes\n",
+ nfetch, memsize);
+ free(data);
+ free(tmp);
+ return;
+ }
+ for (i = 0; i <= (nfetch - memsize); i++, addr++) {
+ if (memcmp((data + i), my_buf, memsize) == 0) {
+ printf_filtered("pattern match at ");
+ deprecated_print_address_numeric((addr), 1, gdb_stdout);
+ printf_filtered("\n");
+ }
+ }
+ break;
+ case 'b':
+ case 'c':
+ memsize = sizeof(char);
+ if (typ == 'c')
+ typc = *pattern;
+ else {
+ if (strncmp("0x", pattern, 2) == 0) {
+ sscanf(pattern, "0x%02x", &typc);
+ } else
+ typc = (unsigned char)atoi(pattern);
+ }
+ printf_filtered(">>>%0x2\n", (int) typc);
+ if (nfetch < memsize) {
+ printf_filtered
+ ("we read only %i bytes and we seek for a pattern of %i bytes\n",
+ nfetch, memsize);
+ free(data);
+ free(tmp);
+ return;
+ }
+ for (i = 0; i <= (nfetch - memsize); i++, addr++) {
+ if (*(data + i) == typc) {
+ printf_filtered("pattern match at ");
+ deprecated_print_address_numeric((addr), 1, gdb_stdout);
+ printf_filtered("\n");
+ }
+ }
+ break;
+ default:
+ printf_filtered("'%c' is not a valid type\n", typ);
+ break;
+ }
+ free(data);
+ free(tmp);
+ return;
+ }
+}
+
/* Same as print, except in epoch, it gets its own window */
static void
inspect_command (char *exp, int from_tty)
@@ -2138,6 +2327,17 @@ EXP may be preceded with /FMT, where FMT
but no count or size letter (see \"x\" command)."));
set_cmd_completer (c, location_completer);
add_com_alias ("p", "print", class_vars, 1);
+ c =
+ add_com ("scanmem", class_vars, scanmem_command,
+ "scanmem <addr> <num> <type> <string>\n"
+ "example: scanmem $esp 100 a 0x8048434\n"
+ " scan for this addr into the stack\n\n"
+ " scanmem 0x08048434 100 s fsck\n"
+ " seek for a string\n"
+ " scanmem 0x8048434 100 b 0x75\n"
+ " scan for the char 0x75\n"
+ " a = address c = char b = byte i = int s = string\n"
+ "\n"); /* antilove@zolo.freelsd.net */
c = add_com ("inspect", class_vars, inspect_command, _("\
Same as \"print\" command, except that if you are running in the epoch\n\
diff -Nrup gdb-6.4.orig/gdb/valprint.c gdb-6.4/gdb/valprint.c
--- gdb-6.4.orig/gdb/valprint.c 2005-10-09 21:03:59.000000000 -0400
+++ gdb-6.4/gdb/valprint.c 2005-12-08 23:17:09.000000000 -0500
@@ -39,7 +39,7 @@
/* Prototypes for local functions */
-static int partial_memory_read (CORE_ADDR memaddr, char *myaddr,
+int partial_memory_read (CORE_ADDR memaddr, char *myaddr,
int len, int *errnoptr);
static void show_print (char *, int);
@@ -1037,7 +1037,7 @@ val_print_array_elements (struct type *t
/* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
function be eliminated. */
-static int
+int
partial_memory_read (CORE_ADDR memaddr, char *myaddr, int len, int *errnoptr)
{
int nread; /* Number of bytes actually read. */
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