FreeCalypso > hg > freecalypso-tools
view libpwon/forkoff.c @ 716:3713a349fb1e
doc/Loadtools-usage: Mot V17x documented
Mot V17x is equivalent to C155/156 for loadtools purposes, but this fact
needs to be documented, as it may not be obvious to those who are not
as deeply involved.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 01 Jul 2020 00:31:37 +0000 |
parents | cef70d53fc5e |
children | 7d1df6d831e4 |
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#include <sys/types.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> extern char bootctrl_pwon_cmd[]; static char shell_pathname[] = "/bin/sh"; void fork_exec_pwon_cmd() { int i; i = vfork(); if (i < 0) { perror("vfork"); exit(1); } if (i) return; execl(shell_pathname, "sh", "-c", bootctrl_pwon_cmd, (char *) 0); perror(shell_pathname); _exit(1); } pwon_if_needed() { if (!bootctrl_pwon_cmd[0]) return(0); signal(SIGCHLD, SIG_IGN); fork_exec_pwon_cmd(); return(1); }