X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fdump.c;h=04837e64f193304b9270cc4cf84df8a6ca9b8d9b;hb=dc01dd60affb4688453f8b7204af66246f0850db;hp=02b2ce4fe9309cfd1f001ee0fd32af2faf776cc9;hpb=098174370094ba8c31f86bd9faed3796dcaeb1db;p=pciutils.git

diff --git a/lib/dump.c b/lib/dump.c
index 02b2ce4..04837e6 100644
--- a/lib/dump.c
+++ b/lib/dump.c
@@ -1,7 +1,7 @@
 /*
  *	The PCI Library -- Reading of Bus Dumps
  *
- *	Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz>
+ *	Copyright (c) 1997--2005 Martin Mares <mj@ucw.cz>
  *
  *	Can be freely distributed and used under the terms of the GNU GPL.
  */
@@ -14,7 +14,7 @@
 #include "internal.h"
 
 struct dump_data {
-  int len;
+  int len, allocated;
   byte data[1];
 };
 
@@ -28,11 +28,24 @@ static void
 dump_alloc_data(struct pci_dev *dev, int len)
 {
   struct dump_data *dd = pci_malloc(dev->access, sizeof(struct dump_data) + len - 1);
-  dd->len = len;
+  dd->allocated = len;
+  dd->len = 0;
   memset(dd->data, 0xff, len);
   dev->aux = dd;
 }
 
+static int
+dump_validate(char *s, char *fmt)
+{
+  while (*fmt)
+    {
+      if (*fmt == '#' ? !isxdigit(*s) : *fmt != *s)
+	return 0;
+      fmt++, s++;
+    }
+  return 1;
+}
+
 static void
 dump_init(struct pci_access *a)
 {
@@ -56,10 +69,8 @@ dump_init(struct pci_access *a)
 	*z-- = 0;
       len = z - buf + 1;
       mn = 0;
-      if ((len >= 8 && buf[2] == ':' && buf[5] == '.' && buf[7] == ' ' &&
-	   sscanf(buf, "%x:%x.%d ", &bn, &dn, &fn) == 3) ||
-	  (len >= 13 && buf[4] == ':' && buf[7] == ':' && buf[10] == '.' && buf[12] == ' ' &&
-	   sscanf(buf, "%x:%x:%x.%d", &mn, &bn, &dn, &fn) == 4))
+      if (dump_validate(buf, "##:##.# ") && sscanf(buf, "%x:%x.%d", &bn, &dn, &fn) == 3 ||
+	  dump_validate(buf, "####:##:##.# ") && sscanf(buf, "%x:%x:%x.%d", &mn, &bn, &dn, &fn) == 4)
 	{
 	  dev = pci_get_dev(a, mn, bn, dn, fn);
 	  dump_alloc_data(dev, 256);
@@ -68,19 +79,17 @@ dump_init(struct pci_access *a)
       else if (!len)
 	dev = NULL;
       else if (dev &&
-	       (len >= 51 && buf[2] == ':' && buf[3] == ' ' || len >= 52 && buf[3] == ':' && buf[4] == ' ') &&
+	       (dump_validate(buf, "##: ") || dump_validate(buf, "###: ")) &&
 	       sscanf(buf, "%x: ", &i) == 1)
 	{
 	  struct dump_data *dd = dev->aux;
 	  z = strchr(buf, ' ') + 1;
-	  while (isspace(z[0]) && isxdigit(z[1]) && isxdigit(z[2]))
+	  while (isxdigit(z[0]) && isxdigit(z[1]) && (!z[2] || z[2] == ' ') &&
+		 sscanf(z, "%x", &j) == 1 && j < 256)
 	    {
-	      z++;
-	      if (sscanf(z, "%x", &j) != 1 || i >= 256)
-		a->error("dump: Malformed line");
 	      if (i >= 4096)
-		break;
-	      if (i > dd->len)		/* Need to re-allocate the buffer */
+		a->error("dump: At most 4096 bytes of config space are supported");
+	      if (i >= dd->allocated)	/* Need to re-allocate the buffer */
 		{
 		  dump_alloc_data(dev, 4096);
 		  memcpy(((struct dump_data *) dev->aux)->data, dd->data, 256);
@@ -88,8 +97,14 @@ dump_init(struct pci_access *a)
 		  dd = dev->aux;
 		}
 	      dd->data[i++] = j;
+	      if (i > dd->len)
+		dd->len = i;
 	      z += 2;
+	      if (*z)
+		z++;
 	    }
+	  if (*z)
+	    a->error("dump: Malformed line");
 	}
     }
 }
@@ -111,7 +126,7 @@ dump_read(struct pci_dev *d, int pos, byte *buf, int len)
   if (!(dd = d->aux))
     {
       struct pci_dev *e = d->access->devices;
-      while (e && (e->bus != d->bus || e->dev != d->dev || e->func != d->func))
+      while (e && (e->domain != d->domain || e->bus != d->bus || e->dev != d->dev || e->func != d->func))
 	e = e->next;
       if (!e)
 	return 0;