dvd-sector-copy.c: Hoist `carefully_write' up near the system utilities.

diff --git a/dvd-sector-copy.c b/dvd-sector-copy.c
index b2fa881..b0cd78d 100644 (file)
--- a/dvd-sector-copy.c
+++ b/dvd-sector-copy.c
@@ -81,6 +81,23 @@ static void bail_syserr(int err, const char *fmt, ...)
   exit(2);
 }
 
+static void carefully_write(int fd, const void *buf, size_t sz)
+{
+  const unsigned char *p = buf;
+  ssize_t n;
+
+  if (fd < 0) return;
+  while (sz) {
+    n = write(fd, p, sz);
+    if (n < 0) {
+      if (errno == EINTR) continue;
+      bail_syserr(errno, "failed to write to output file");
+    }
+    if (!n) bail("unexpected short write to output file");
+    p += n; sz -= n;
+  }
+}
+
 #define DEFVEC(vtype, etype)                                           \
        typedef struct { etype *v; size_t n, sz; } vtype
 #define VEC_INIT { 0, 0, 0 }
@@ -390,23 +407,6 @@ again:
   return (n);
 }
 
-static void carefully_write(int fd, const void *buf, size_t sz)
-{
-  const unsigned char *p = buf;
-  ssize_t n;
-
-  if (fd < 0) return;
-  while (sz) {
-    n = write(fd, p, sz);
-    if (n < 0) {
-      if (errno == EINTR) continue;
-      bail_syserr(errno, "failed to write to output file");
-    }
-    if (!n) bail("unexpected short write to output file");
-    p += n; sz -= n;
-  }
-}
-
 static void emit(int outfd, secaddr start, secaddr end)
 {
 #define BUFSECTORS 512