1 files changed, 5 insertions, 88 deletions
diff --git a/src/extract.c b/src/extract.c
index 06d95df..616b8d1 100644
--- a/src/extract.c
+++ b/src/extract.c
@@ -1,4 +1,3 @@
-#include <sys/mman.h>
 #include <stdlib.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -10,91 +9,7 @@
 
 #include "package.h"
 #include "extract.h"
-
-#define MMAPSIZE (100*1024*1024)
-#define BUFSIZE (1024*1024)
-
-int copy_file(const char *src, const char *dst, uint32_t l) {
-    int sfd = -1, dfd = -1, r = -1;
-    uint32_t m;
-    off_t o;
-    void *src_p, *dst_p;
-    void *buf = NULL;
-
-    if ((sfd = open(src, O_RDONLY)) < 0) {
-        fprintf(stderr, "open(%s, O_RDONLY): %s\n", src, strerror(errno));
-        goto finish;
-    }
-
-    if ((dfd = open(dst, O_RDWR|O_TRUNC|O_CREAT, 0666)) < 0) {
-        fprintf(stderr, "open(%s, O_WRONLY): %s\n", dst, strerror(errno));
-        goto finish;
-    }
-
-    if (ftruncate(dfd, l) < 0) {
-        fprintf(stderr, "ftruncate(): %s\n", strerror(errno));
-        goto finish;
-    }
-
-    o = 0;
-    m = l < MMAPSIZE ? l : MMAPSIZE;
-
-    while (l > 0) {
-        if ((src_p = mmap(NULL, m, PROT_READ, MAP_SHARED, sfd, o)) == MAP_FAILED)
-            break;
-        
-        if ((dst_p = mmap(NULL, m, PROT_READ|PROT_WRITE, MAP_SHARED, dfd, o)) == MAP_FAILED) {
-            munmap(src_p, m);
-            break;
-        }
-        
-        memcpy(dst_p, src_p, m);
-
-        munmap(src_p, m);
-        munmap(dst_p, m);
-        
-        o += m;
-        l -= m;
-        m = l < MMAPSIZE ? l : MMAPSIZE;
-    }
-
-    if (l > 0) {
-        fprintf(stderr, "mmap() failed: %s\n", strerror(errno));
-
-        if (!(buf = malloc(BUFSIZE)))
-            goto finish;
-
-        for (;;) {
-            ssize_t r;
-
-            if ((m = read(sfd, buf, BUFSIZE)) < 0) {
-                fprintf(stderr, "read(): %s\n", strerror(errno));
-                goto finish;
-            }
-
-            if (!m)
-                break;
-                
-            if ((r = write(dfd, buf, m)) < 0) {
-                fprintf(stderr, "write(): %s\n", strerror(errno));
-                goto finish;
-            }
-        }
-    }
-
-    
-    r = 0;
-
-finish:
-    
-    if (sfd >= 0)
-        close(sfd);
-
-    if (dfd >= 0)
-        close(dfd);
-
-    return r;
-}
+#include "util.h"
 
 static int cb(struct package *p, const char *name, const char *path, void *u) {
     struct stat st;
@@ -110,8 +25,10 @@ static int cb(struct package *p, const char *name, const char *path, void *u) {
     } else
         size = (uint32_t) st.st_size;
 
-    if (size)
-        return copy_file(path, name, size);
+    if (size) {
+        fprintf(stderr, "Extracting %s ...\n", name);
+        return copy_file(path, name);
+    }
 
     return 0;
 }