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recv_sideband: Bands #2 and #3 always go to stderr

This removes the last parameter of recv_sideband, by which the callers
told which channel bands #2 and #3 should be written to.

Sayeth Shawn Pearce:

   The definition of the streams in the current sideband protocol
   are rather well defined for the one protocol that uses it,
   fetch-pack/receive-pack:

     stream #1:  pack data
     stream #2:  stderr messages, progress, meant for tty
     stream #3:  abort message, remote is dead, goodbye!

Since both callers of the function passed 2 for the parameter, we hereby
remove it and send bands #2 and #3 to stderr explicitly using fprintf.

This has the nice side-effect that these two streams pass through our
ANSI emulation layer on Windows.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit 34df8abaf358c83cc1447d0a81bda7848685a1c9 1 parent c4994ce
Johannes Sixt authored gitster committed
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2  builtin-archive.c
@@ -52,7 +52,7 @@ static int run_remote_archiver(int argc, const char **argv,
die("git archive: expected a flush");
/* Now, start reading from fd[0] and spit it out to stdout */
- rv = recv_sideband("archive", fd[0], 1, 2);
+ rv = recv_sideband("archive", fd[0], 1);
close(fd[0]);
close(fd[1]);
rv |= finish_connect(conn);
View
2  builtin-fetch-pack.c
@@ -482,7 +482,7 @@ static int sideband_demux(int fd, void *data)
{
int *xd = data;
- return recv_sideband("fetch-pack", xd[0], fd, 2);
+ return recv_sideband("fetch-pack", xd[0], fd);
}
static int get_pack(int xd[2], char **pack_lockfile)
View
19 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;
}
}
View
2  sideband.h
@@ -7,7 +7,7 @@
#define DEFAULT_PACKET_MAX 1000
#define LARGE_PACKET_MAX 65520
-int recv_sideband(const char *me, int in_stream, int out, int err);
+int recv_sideband(const char *me, int in_stream, int out);
ssize_t send_sideband(int fd, int band, const char *data, ssize_t sz, int packet_max);
#endif
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