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Cory Snider
8f67178139
Modify receive_fd() and send_fd() so they can be more readily reused in cloned_binary.c. Change receive_fd() to have a single responsibility: receiving and returning a single file descriptor over a UNIX domain socket. Make send_fd() useable in precarious execution contexts such as a clone(CLONE_VFORK|CLONE_VM) "thread" where allocating heap memory or calling exit() would be dangerous. Signed-off-by: Cory Snider <csnider@mirantis.com>
13 lines
298 B
C
13 lines
298 B
C
#ifndef NSENTER_IPC_H
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#define NSENTER_IPC_H
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int receive_fd(int sockfd);
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/*
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* send_fd passes the open file descriptor fd to another process via the UNIX
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* domain socket sockfd. The return value of the sendmsg(2) call is returned.
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*/
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int send_fd(int sockfd, int fd);
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#endif /* NSENTER_IPC_H */
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