Patch from Hideki IWAMOTO, output debugging messages to stderr
diff --git a/networking/tftp.c b/networking/tftp.c
index 0bc562d..f00b64b 100644
--- a/networking/tftp.c
+++ b/networking/tftp.c
@@ -292,10 +292,10 @@
len = cp - buf;
#ifdef CONFIG_FEATURE_TFTP_DEBUG
- printf("sending %u bytes\n", len);
+ fprintf(stderr, "sending %u bytes\n", len);
for (cp = buf; cp < &buf[len]; cp++)
- printf("%02x ", *cp);
- printf("\n");
+ fprintf(stderr, "%02x ", *cp);
+ fprintf(stderr, "\n");
#endif
if (sendto(socketfd, buf, len, 0,
(struct sockaddr *) &sa, sizeof(sa)) < 0) {
@@ -371,7 +371,7 @@
tmp = ntohs(*((unsigned short *) &buf[2]));
#ifdef CONFIG_FEATURE_TFTP_DEBUG
- printf("received %d bytes: %04x %04x\n", len, opcode, tmp);
+ fprintf(stderr, "received %d bytes: %04x %04x\n", len, opcode, tmp);
#endif
if (opcode == TFTP_ERROR) {
@@ -420,7 +420,7 @@
opcode = TFTP_ACK;
}
#ifdef CONFIG_FEATURE_TFTP_DEBUG
- printf("using blksize %u\n", blksize);
+ fprintf(stderr, "using blksize %u\n", blksize);
#endif
tftp_bufsize = blksize + 4;
block_nr = 0;
@@ -567,7 +567,7 @@
port = bb_lookup_port(argv[optind + 1], "udp", 69);
#ifdef CONFIG_FEATURE_TFTP_DEBUG
- printf("using server \"%s\", remotefile \"%s\", "
+ fprintf(stderr, "using server \"%s\", remotefile \"%s\", "
"localfile \"%s\".\n",
inet_ntoa(*((struct in_addr *) host->h_addr)),
remotefile, localfile);