memzap

commit e768db13177889f74d4d37628bc0b5d71ac03f54
parent 3dae6fb418367a52b1a42727c86fd6f9a47194fd
Author: sin <sin@2f30.org>
Date:   Fri,  1 Mar 2013 12:20:23 +0000

ops: Add linux_ops.c

We aim to have *_ops.c files to implement any OS specific
features.  The Makefile will take care of linking the appropriate
ops object.

Diffstat:
M
Makefile
 | 
2
+-
M
data.h
 | 
3
+++
A
linux_ops.c
 | 
29
+++++++++++++++++++++++++++++
M
memzap.c
 | 
28
----------------------------

4 files changed, 33 insertions(+), 29 deletions(-)
diff --git a/Makefile b/Makefile
@@ -1,6 +1,6 @@
 BIN = memzap
 VER = 0.1
-SRC = memzap.c mem.c utils.c md5.c
+SRC = memzap.c mem.c utils.c md5.c linux_ops.c
 OBJ = ${SRC:.c=.o}
 
 PREFIX = /usr
diff --git a/data.h b/data.h
@@ -133,4 +133,7 @@ struct mem_region *apply_diff(struct mem_region *dst,
 void dump_mem_region_diff(struct mem_region_diff *rdiff);
 void free_mem_region_diff(struct mem_region_diff *rdiff);
 
+/* *_ops.c */
+void readmem(pid_t pid, void *buf, off_t offset, size_t size);
+
 #endif
diff --git a/linux_ops.c b/linux_ops.c
@@ -0,0 +1,29 @@
+#include "data.h"
+
+void
+readmem(pid_t pid, void *buf, off_t offset, size_t size)
+{
+	char tbuf[PATH_MAX - 1];
+	int fdmem, r;
+	ssize_t rs;
+	size_t s;
+
+	snprintf(tbuf, sizeof(tbuf), "/proc/%d/mem", pid);
+	fdmem = open(tbuf, O_RDONLY);
+	if (fdmem < 0)
+		err(1, "open");
+
+	r = lseek(fdmem, offset, SEEK_SET);
+	if (r < 0)
+		err(1, "lseek");
+
+	s = 0;
+	while (s < size) {
+		rs = read(fdmem, buf + s, size - s);
+		if (rs < 0)
+			err(1, "read");
+		s += rs;
+	}
+
+	close(fdmem);
+}
diff --git a/memzap.c b/memzap.c
@@ -4,34 +4,6 @@
 
 static int verbose = 0;
 
-void
-readmem(pid_t pid, void *buf, off_t offset, size_t size)
-{
-	char tbuf[PATH_MAX - 1];
-	int fdmem, r;
-	ssize_t rs;
-	size_t s;
-
-	snprintf(tbuf, sizeof(tbuf), "/proc/%d/mem", pid);
-	fdmem = open(tbuf, O_RDONLY);
-	if (fdmem < 0)
-		err(1, "open");
-
-	r = lseek(fdmem, offset, SEEK_SET);
-	if (r < 0)
-		err(1, "lseek");
-
-	s = 0;
-	while (s < size) {
-		rs = read(fdmem, buf + s, size - s);
-		if (rs < 0)
-			err(1, "read");
-		s += rs;
-	}
-
-	close(fdmem);
-}
-
 int
 main(int argc, char *argv[])
 {