FreeCalypso > hg > freecalypso-tools
annotate libpwon/forkoff.c @ 739:de5e16cea79f
target-utils/lunadrv/Makefile: install added
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 11 Oct 2020 03:05:29 +0000 |
parents | 7d1df6d831e4 |
children | ab54957dbe35 |
rev | line source |
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1 #include <sys/types.h> |
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2 #include <signal.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <unistd.h> |
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6 |
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7 extern char bootctrl_pwon_cmd[]; |
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8 extern int bootctrl_duart28c_mode; |
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9 |
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10 static char shell_pathname[] = "/bin/sh"; |
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11 |
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12 void |
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13 fork_exec_pwon_cmd() |
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14 { |
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15 int i; |
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16 |
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17 i = vfork(); |
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18 if (i < 0) { |
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19 perror("vfork"); |
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20 exit(1); |
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21 } |
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22 if (i) |
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23 return; |
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24 execl(shell_pathname, "sh", "-c", bootctrl_pwon_cmd, (char *) 0); |
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25 perror(shell_pathname); |
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26 _exit(1); |
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27 } |
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28 |
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29 pwon_if_needed() |
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30 { |
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31 if (bootctrl_duart28c_mode) { |
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32 signal(SIGCHLD, SIG_IGN); |
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33 fork_duart28c_pulse(); |
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34 return(1); |
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35 } |
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36 if (bootctrl_pwon_cmd[0]) { |
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parents:
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37 signal(SIGCHLD, SIG_IGN); |
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38 fork_exec_pwon_cmd(); |
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39 return(1); |
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40 } |
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41 return(0); |
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42 } |