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| author | Peter Tyser <ptyser@xes-inc.com> | 2009-04-24 15:59:46 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-04-28 01:16:46 +0200 |
| commit | eea8be86d1c2b570660d1f6c553845e13164231a (patch) | |
| tree | 635b2c23a2873e6bd9b7d3c2cd773b06f7a1a899 /tools/ncb.c | |
| parent | dbe29e36a4c2775b69b5a63b0ce2bac89c08e691 (diff) | |
| download | olio-uboot-2014.01-eea8be86d1c2b570660d1f6c553845e13164231a.tar.xz olio-uboot-2014.01-eea8be86d1c2b570660d1f6c553845e13164231a.zip | |
ncb: Check return value of write()
This prevents the compilation warning:
ncb.c: In function 'main':
ncb.c:32: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'tools/ncb.c')
| -rw-r--r-- | tools/ncb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/ncb.c b/tools/ncb.c index 30acbead5..ec8d8a743 100644 --- a/tools/ncb.c +++ b/tools/ncb.c @@ -1,3 +1,4 @@ +#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> @@ -29,7 +30,8 @@ int main (int argc, char *argv[]) len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len); if (len < 0) break; - write (1, buf, len); + if (write (1, buf, len) != len) + fprintf(stderr, "WARNING: serial characters dropped\n"); } return 0; |