/* include child_make */ #include "unp.h"## 1 ##src/server/child05.c## #include "child.h"## 2 ##src/server/child05.c## pid_t## 3 ##src/server/child05.c## child_make(int i, int listenfd, int addrlen)## 4 ##src/server/child05.c## {## 5 ##src/server/child05.c## int sockfd[2];## 6 ##src/server/child05.c## pid_t pid;## 7 ##src/server/child05.c## void child_main(int, int, int);## 8 ##src/server/child05.c## Socketpair(AF_LOCAL, SOCK_STREAM, 0, sockfd);## 9 ##src/server/child05.c## if ((pid = Fork()) > 0) {## 10 ##src/server/child05.c## Close(sockfd[1]);## 11 ##src/server/child05.c## cptr[i].child_pid = pid;## 12 ##src/server/child05.c## cptr[i].child_pipefd = sockfd[0];## 13 ##src/server/child05.c## cptr[i].child_status = 0;## 14 ##src/server/child05.c## return (pid); /* parent */## 15 ##src/server/child05.c## }## 16 ##src/server/child05.c## Dup2(sockfd[1], STDERR_FILENO); /* child's stream pipe to parent */## 17 ##src/server/child05.c## Close(sockfd[0]);## 18 ##src/server/child05.c## Close(sockfd[1]);## 19 ##src/server/child05.c## Close(listenfd); /* child does not need this open */## 20 ##src/server/child05.c## child_main(i, listenfd, addrlen); /* never returns */## 21 ##src/server/child05.c## }## 22 ##src/server/child05.c## /* end child_make */ /* include child_main */ void## 23 ##src/server/child05.c## child_main(int i, int listenfd, int addrlen)## 24 ##src/server/child05.c## {## 25 ##src/server/child05.c## char c;## 26 ##src/server/child05.c## int connfd;## 27 ##src/server/child05.c## ssize_t n;## 28 ##src/server/child05.c## void web_child(int);## 29 ##src/server/child05.c## printf("child %ld starting\n", (long) getpid());## 30 ##src/server/child05.c## for (;;) {## 31 ##src/server/child05.c## if ((n = Read_fd(STDERR_FILENO, &c, 1, &connfd)) == 0)## 32 ##src/server/child05.c## err_quit("read_fd returned 0");## 33 ##src/server/child05.c## if (connfd < 0)## 34 ##src/server/child05.c## err_quit("no descriptor from read_fd");## 35 ##src/server/child05.c## web_child(connfd); /* process the request */## 36 ##src/server/child05.c## Close(connfd);## 37 ##src/server/child05.c## Write(STDERR_FILENO, "", 1); /* tell parent we're ready again */## 38 ##src/server/child05.c## }## 39 ##src/server/child05.c## }## 40 ##src/server/child05.c## /* end child_main */