vcs-svn: let deltas use data from preimage

diff --git a/sideband.c b/sideband.c
index cca3360546dabf9f018b882f690bd1dea9de534d..d5ffa1c8919a6db750606c78a1b44d8618fa35a5 100644 (file)
--- a/sideband.c
+++ b/sideband.c
@@ -19,7 +19,7 @@
 
 #define FIX_SIZE 10  /* large enough for any of the above */
 
-int recv_sideband(const char *me, int in_stream, int out, int err)
+int recv_sideband(const char *me, int in_stream, int out)
 {
        unsigned pf = strlen(PREFIX);
        unsigned sf;
@@ -41,8 +41,7 @@ int recv_sideband(const char *me, int in_stream, int out, int err)
                if (len == 0)
                        break;
                if (len < 1) {
-                       len = sprintf(buf, "%s: protocol error: no band designator\n", me);
-                       safe_write(err, buf, len);
+                       fprintf(stderr, "%s: protocol error: no band designator\n", me);
                        return SIDEBAND_PROTOCOL_ERROR;
                }
                band = buf[pf] & 0xff;
@@ -50,8 +49,8 @@ int recv_sideband(const char *me, int in_stream, int out, int err)
                switch (band) {
                case 3:
                        buf[pf] = ' ';
-                       buf[pf+1+len] = '\n';
-                       safe_write(err, buf, pf+1+len+1);
+                       buf[pf+1+len] = '\0';
+                       fprintf(stderr, "%s\n", buf);
                        return SIDEBAND_REMOTE_ERROR;
                case 2:
                        buf[pf] = ' ';
@@ -95,12 +94,12 @@ int recv_sideband(const char *me, int in_stream, int out, int err)
                                        memcpy(save, b + brk, sf);
                                        b[brk + sf - 1] = b[brk - 1];
                                        memcpy(b + brk - 1, suffix, sf);
-                                       safe_write(err, b, brk + sf);
+                                       fprintf(stderr, "%.*s", brk + sf, b);
                                        memcpy(b + brk, save, sf);
                                        len -= brk;
                                } else {
                                        int l = brk ? brk : len;
-                                       safe_write(err, b, l);
+                                       fprintf(stderr, "%.*s", l, b);
                                        len -= l;
                                }
 
@@ -112,10 +111,8 @@ int recv_sideband(const char *me, int in_stream, int out, int err)
                        safe_write(out, buf + pf+1, len);
                        continue;
                default:
-                       len = sprintf(buf,
-                                     "%s: protocol error: bad band #%d\n",
-                                     me, band);
-                       safe_write(err, buf, len);
+                       fprintf(stderr, "%s: protocol error: bad band #%d\n",
+                               me, band);
                        return SIDEBAND_PROTOCOL_ERROR;
                }
        }
@@ -138,9 +135,14 @@ ssize_t send_sideband(int fd, int band, const char *data, ssize_t sz, int packet
                n = sz;
                if (packet_max - 5 < n)
                        n = packet_max - 5;
-               sprintf(hdr, "%04x", n + 5);
-               hdr[4] = band;
-               safe_write(fd, hdr, 5);
+               if (0 <= band) {
+                       sprintf(hdr, "%04x", n + 5);
+                       hdr[4] = band;
+                       safe_write(fd, hdr, 5);
+               } else {
+                       sprintf(hdr, "%04x", n + 4);
+                       safe_write(fd, hdr, 4);
+               }
                safe_write(fd, p, n);
                p += n;
                sz -= n;