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execute: some extra asserts

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In some cases we checked for fd validity already explicitly, let's do
this for all our fds.
This commit is contained in:
Lennart Poettering 2017-10-27 14:59:05 +02:00
parent 5073ff6bec
commit e75a9ed176
1 changed files with 7 additions and 0 deletions
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7
src/core/execute.c
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@ -469,9 +469,13 @@ static int setup_input(
}
case EXEC_INPUT_SOCKET:
assert(socket_fd >= 0);
return dup2(socket_fd, STDIN_FILENO) < 0 ? -errno : STDIN_FILENO;
case EXEC_INPUT_NAMED_FD:
assert(named_iofds[STDIN_FILENO] >= 0);
(void) fd_nonblock(named_iofds[STDIN_FILENO], false);
return dup2(named_iofds[STDIN_FILENO], STDIN_FILENO) < 0 ? -errno : STDIN_FILENO;
@ -612,9 +616,12 @@ static int setup_output(
case EXEC_OUTPUT_SOCKET:
assert(socket_fd >= 0);
return dup2(socket_fd, fileno) < 0 ? -errno : fileno;
case EXEC_OUTPUT_NAMED_FD:
assert(named_iofds[fileno] >= 0);
(void) fd_nonblock(named_iofds[fileno], false);
return dup2(named_iofds[fileno], fileno) < 0 ? -errno : fileno;