81 lines
1.6 KiB
C
81 lines
1.6 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2008 H. Peter Anvin - All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston MA 02110-1301, USA; either version 2 of the License, or
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* (at your option) any later version; incorporated herein by reference.
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*
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* ----------------------------------------------------------------------- */
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/*
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* gpxecmd.c
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*
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* Invoke an arbitrary gPXE command, if available.
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*/
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#include <alloca.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <console.h>
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#include <com32.h>
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#include <string.h>
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#include <sys/gpxe.h>
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#include <syslinux/pxe_api.h>
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struct segoff16 {
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uint16_t offs, seg;
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};
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struct s_PXENV_FILE_EXEC {
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uint16_t Status;
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struct segoff16 Command;
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};
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static void gpxecmd(const char **args)
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{
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char *q;
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struct s_PXENV_FILE_EXEC *fx;
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fx = lmalloc(sizeof *fx);
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if (!fx)
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return;
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q = (char *)(fx + 1);
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fx->Status = 1;
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fx->Command.offs = OFFS(q);
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fx->Command.seg = SEG(q);
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while (*args) {
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q = stpcpy(q, *args);
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*q++ = ' ';
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args++;
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}
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*--q = '\0';
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pxe_call(PXENV_FILE_EXEC, fx);
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/* This should not return... */
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}
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int main(int argc, const char *argv[])
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{
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if (argc < 2) {
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printf("Usage: gpxecmd command...\n");
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return 1;
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}
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if (!is_gpxe()) {
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printf("gpxecmd: gPXE API not detected\n");
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return 1;
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}
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gpxecmd(argv + 1);
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return 0;
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}
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