X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=lib%2Fhexdump.c;h=39af2560f765f9815ccb724fecbe38173c986aab;hb=548b84166917d6f5e2296123b85ad24aecd3801d;hp=16f2e2935e87163331290f132d0db92075660acf;hpb=6a0ed91e361a93ee1efb4c20c4967024ed2a8dd7;p=safe%2Fjmp%2Flinux-2.6

diff --git a/lib/hexdump.c b/lib/hexdump.c
index 16f2e29..39af256 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -12,6 +12,9 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 
+const char hex_asc[] = "0123456789abcdef";
+EXPORT_SYMBOL(hex_asc);
+
 /**
  * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
  * @buf: data blob to dump
@@ -62,7 +65,8 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 
 		for (j = 0; j < ngroups; j++)
 			lx += scnprintf(linebuf + lx, linebuflen - lx,
-				"%16.16llx ", (unsigned long long)*(ptr8 + j));
+				"%s%16.16llx", j ? " " : "",
+				(unsigned long long)*(ptr8 + j));
 		ascii_column = 17 * ngroups + 2;
 		break;
 	}
@@ -73,7 +77,7 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 
 		for (j = 0; j < ngroups; j++)
 			lx += scnprintf(linebuf + lx, linebuflen - lx,
-				"%8.8x ", *(ptr4 + j));
+				"%s%8.8x", j ? " " : "", *(ptr4 + j));
 		ascii_column = 9 * ngroups + 2;
 		break;
 	}
@@ -84,19 +88,21 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 
 		for (j = 0; j < ngroups; j++)
 			lx += scnprintf(linebuf + lx, linebuflen - lx,
-				"%4.4x ", *(ptr2 + j));
+				"%s%4.4x", j ? " " : "", *(ptr2 + j));
 		ascii_column = 5 * ngroups + 2;
 		break;
 	}
 
 	default:
-		for (j = 0; (j < rowsize) && (j < len) && (lx + 4) < linebuflen;
-		     j++) {
+		for (j = 0; (j < len) && (lx + 3) <= linebuflen; j++) {
 			ch = ptr[j];
-			linebuf[lx++] = hex_asc(ch >> 4);
-			linebuf[lx++] = hex_asc(ch & 0x0f);
+			linebuf[lx++] = hex_asc_hi(ch);
+			linebuf[lx++] = hex_asc_lo(ch);
 			linebuf[lx++] = ' ';
 		}
+		if (j)
+			lx--;
+
 		ascii_column = 3 * rowsize + 2;
 		break;
 	}
@@ -105,8 +111,9 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 
 	while (lx < (linebuflen - 1) && lx < (ascii_column - 1))
 		linebuf[lx++] = ' ';
-	for (j = 0; (j < rowsize) && (j < len) && (lx + 2) < linebuflen; j++)
-		linebuf[lx++] = isprint(ptr[j]) ? ptr[j] : '.';
+	for (j = 0; (j < len) && (lx + 2) < linebuflen; j++)
+		linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j]
+				: '.';
 nil:
 	linebuf[lx++] = '\0';
 }
@@ -189,7 +196,7 @@ EXPORT_SYMBOL(print_hex_dump);
  * rowsize of 16, groupsize of 1, and ASCII output included.
  */
 void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
-			void *buf, size_t len)
+			const void *buf, size_t len)
 {
 	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, 16, 1,
 			buf, len, 1);