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authorVladislav Grishenko <themiron@yandex-team.ru>2021-03-15 02:48:09 +0500
committerDamjan Marion <dmarion@0xa5.net>2024-03-05 18:51:37 +0000
commit29e916a07c31d63ed6935354b99f16743842fdc6 (patch)
tree0727b3eb98f753677824b63e05d18063f8323b36
parent09c6cae8c819b71f32fa4d657756c063d4549366 (diff)
vpp: fix stdin vs non-interactive command clash
In case of both stdin and non-interactive inputs are there vppctl parses them all, causing mixed corrupted output: $ echo foo | vppctl sh bar show: unknown input `bar' unknown input `foo' This is not desired, stdin should be ignored if there's a command but still allow stdin commands - following cases are still equal: $ vppctl foo $ echo foo | vppctl Type: fix Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru> Change-Id: I98667391627150c98a57d49ae544e48ef3351f34
-rw-r--r--src/vpp/app/vppctl.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/src/vpp/app/vppctl.c b/src/vpp/app/vppctl.c
index 7166ce13689..5b93cec8229 100644
--- a/src/vpp/app/vppctl.c
+++ b/src/vpp/app/vppctl.c
@@ -291,17 +291,20 @@ main (int argc, char *argv[])
efd = epoll_create1 (0);
/* register STDIN */
- event.events = EPOLLIN | EPOLLPRI | EPOLLERR;
- event.data.fd = STDIN_FILENO;
- if (epoll_ctl (efd, EPOLL_CTL_ADD, STDIN_FILENO, &event) != 0)
+ if (cmd == 0)
{
- /* ignore EPERM; it means stdin is something like /dev/null */
- if (errno != EPERM)
+ event.events = EPOLLIN | EPOLLPRI | EPOLLERR;
+ event.data.fd = STDIN_FILENO;
+ if (epoll_ctl (efd, EPOLL_CTL_ADD, STDIN_FILENO, &event) != 0)
{
- error = errno;
- fprintf (stderr, "epoll_ctl[%d]", STDIN_FILENO);
- perror (0);
- goto done;
+ /* ignore EPERM; it means stdin is something like /dev/null */
+ if (errno != EPERM)
+ {
+ error = errno;
+ fprintf (stderr, "epoll_ctl[%d]", STDIN_FILENO);
+ perror (0);
+ goto done;
+ }
}
}
@@ -341,7 +344,7 @@ main (int argc, char *argv[])
if (n == 0)
continue;
- if (event.data.fd == STDIN_FILENO)
+ if (event.data.fd == STDIN_FILENO && cmd == 0)
{
int n;
char c[100];