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author | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
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committer | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
commit | 92988a21ad4c4c9504295ccb580c9f806134471b (patch) | |
tree | 5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/tools/ncb.c | |
parent | ca2b506783b676c95762c54ea24dcfdaae1947c9 (diff) | |
download | bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.zip bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.gz bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.bz2 |
added boot script files to repository
Diffstat (limited to 'u-boot/tools/ncb.c')
-rw-r--r-- | u-boot/tools/ncb.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/u-boot/tools/ncb.c b/u-boot/tools/ncb.c new file mode 100644 index 0000000..ec8d8a7 --- /dev/null +++ b/u-boot/tools/ncb.c @@ -0,0 +1,38 @@ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/socket.h> +#include <netinet/in.h> + +int main (int argc, char *argv[]) +{ + int s, len, o, port = 6666; + char buf[512]; + struct sockaddr_in addr; + socklen_t addr_len = sizeof addr; + + if (argc > 1) + port = atoi (argv[1]); + + s = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); + + o = 1; + len = 4; + setsockopt (3, SOL_SOCKET, SO_REUSEADDR, &o, len); + + addr.sin_family = AF_INET; + addr.sin_port = htons (port); + addr.sin_addr.s_addr = INADDR_ANY; /* receive broadcasts */ + + bind (s, (struct sockaddr *) &addr, sizeof addr); + + for (;;) { + len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len); + if (len < 0) + break; + if (write (1, buf, len) != len) + fprintf(stderr, "WARNING: serial characters dropped\n"); + } + + return 0; +} |