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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot-sam460ex/tools/ncb.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot-sam460ex/tools/ncb.c')
-rw-r--r-- | roms/u-boot-sam460ex/tools/ncb.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/tools/ncb.c b/roms/u-boot-sam460ex/tools/ncb.c new file mode 100644 index 000000000..ec8d8a743 --- /dev/null +++ b/roms/u-boot-sam460ex/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; +} |