*** empty log message ***

ftcp/GNUmakefile

@@ -0,0 +1,13 @@
+include GNUmakevars
+include GNUmakerules
+
+ftcp: ftcp.o
+	$(CC) $^ -lant -o $@
+
+clean:
+	rm -f *.o ftcp core foo bar
+
+install: $(BINDIR)/ftcp
+
+distclean: clean
+	rm -f *.bak *.d

ftcp/ftcp.c

@@ -0,0 +1,105 @@
+char ftcp_rcs_id[] = 
+    "$Id: ftcp.c,v 1.1 2002-03-18 20:40:08 hjp Exp $";
+/* 
+    ftcp - fault tolerant copy
+
+    copy one file to another, ignoring any errors.
+    This is useful for copying files from defective media.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <ant/io.h>
+#include <ant/string.h>
+
+char *cmnd;
+
+
+off_t skip_size = 512;
+size_t buf_size = 512;
+
+static void usage(void)
+{
+    fprintf(stderr, "Usage: %s [-s skip_size] source dest\n", cmnd);
+    exit(1);
+}
+
+
+static int ftcp(char const *src, char const *dest)
+{
+  int sfd, dfd, count;
+  char *buf;
+  off_t off = 0;
+
+  if ((buf = malloc(buf_size)) == NULL) {
+    return -1;
+  }
+  sfd = open(src, O_RDONLY);
+  if (sfd < 0)
+    return -1;
+  dfd = open(dest, O_WRONLY|O_CREAT|O_TRUNC, 0666);
+  if (dfd < 0)
+  {
+    close(sfd);
+    return -1;
+  }
+  for (;;) {
+    lseek(sfd, off, SEEK_SET);
+    count = read(sfd, buf, buf_size);
+    switch (count) {
+	case -1:
+	    fprintf(stderr, "%s: error at offset %lu: %s\n",
+	    	    cmnd, (unsigned long)off, strerror(errno));
+	    off += skip_size;
+	    break;
+	case 0:
+	    goto the_end;
+	default:
+	    lseek(dfd, off, SEEK_SET);
+	    write(dfd, buf, count);
+	    off += count;
+    }
+  }
+  the_end:
+	    
+  close(sfd);
+  close(dfd);
+  return 0;
+}
+
+
+
+int main(int argc, char **argv)
+{
+    int c;
+    char *p;
+
+    cmnd = argv[0];
+
+    while ((c = getopt(argc, argv, "s:")) != EOF) {
+	switch (c) {
+	case 's':
+            skip_size = strtoul(optarg, &p, 0);
+            if (p == optarg || *p != '\0') usage();
+            break;
+	case '?':
+	    usage();
+	default:
+	    assert(0);
+	}
+    }
+
+    if (optind != argc - 2) {
+	usage();
+    }
+    ftcp(argv[optind], argv[optind+1]);
+    return 0;
+}