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#include "apue.h" #include static void lockabyte(const char *name, int fd, off_t offset) { if (writew_lock(fd, offset, SEEK_SET, 1) < 0) err_sys("%s: writew_lock error", name); printf("

#include "apue.h" #include static void sig_int(int); /* our signal-catching function */ int main(void) { char buf[MAXLINE]; /* from apue.h */ pid_t pid; int status; if (signal(SI

#include "apue.h" static void f1(void), f2(void); int main(void) { f1(); f2(); _exit(0); } static void f1(void) { pid_t pid; if ((pid = vfork()) < 0) err_sys("vfork error"); /* child and p

#include "apue.h" #include static void lockabyte(const char *name, int fd, off_t offset) { if (writew_lock(fd, offset, SEEK_SET, 1) < 0) err_sys("%s: writew_lock error", name); printf("

#include "apue.h" #include #include #include void daemonize(const char *cmd) { int i, fd0, fd1, fd2; pid_t pid; struct rlimit rl; struct sigaction sa

#include "apue.h" #include static void sig_hup(int signo) { printf("SIGHUP received, pid = %d\n", getpid()); } static void pr_ids(char *name) { printf("%s: pid = %d, ppid = %d, pgrp = %d

#include "apue.h" static void f1(void), f2(void); int main(void) { f1(); f2(); _exit(0); } static void f1(void) { pid_t pid; if ((pid = vfork()) < 0) err_sys("vfork error"); /* child and p

#include "apue.h" #include static void sig_int(int); /* our signal-catching function */ int main(void) { char buf[MAXLINE]; /* from apue.h */ pid_t pid; int status; if (signal(SI

#include "apue.h" #include #include #include void daemonize(const char *cmd) { int i, fd0, fd1, fd2; pid_t pid; struct rlimit rl; struct sigaction sa

#include "apue.h" #include static void sig_hup(int signo) { printf("SIGHUP received, pid = %d\n", getpid()); } static void pr_ids(char *name) { printf("%s: pid = %d, ppid = %d, pgrp = %d