FreeCalypso > hg > freecalypso-tools
view libpwon/forkoff.c @ 718:098fea21ba13
doc/Host-tools-overview: tiffs-mkfs description updated
The first version of tiffs-mkfs did not include a journal file in the created
FFS, expecting the firmware to create it on first boot. All historical
firmwares prior to a recent FC fix (2020-05) contain a bug in that code path,
thus images made with the first version of tiffs-mkfs were only acceptable to
very recent FC firmwares. tiffs-mkfs has now been extended to include an empty
journal in the created FFS, thus the restriction of working with recent fw only
has been lifted.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 23 Aug 2020 04:55:02 +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); }