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/* Copyright (c) 1993-2008 by Richard Kelsey and Jonathan Rees.
See file COPYING. */
/* Implementation of SRFI-22-style script interpreters. */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include "sysdep.h"
int
main(int argc, char *argv[])
{
char **new_argv;
char *p, *language_tag;
int i;
if (argc < 2)
{
fprintf(stderr, "usage: %s script arg ...\n", argv[0]);
return EX_USAGE;
}
p = strrchr(argv[0], '/');
p = p ? (p+1) : argv[0];
if (strncmp(p, "scheme-", 7))
{
fprintf(stderr,
"%s: script interpreter name must start with `scheme-'\n",
p);
return EX_USAGE;
}
language_tag = p + 7;
new_argv = (char **)malloc((argc + 4) * sizeof(char *));
if (!new_argv)
{
fprintf(stderr, "%s: out of memory\n", argv[0]);
return EX_SOFTWARE;
}
new_argv[0] = RUNNABLE;
new_argv[1] = "-a";
new_argv[2] = "run-script";
new_argv[3] = language_tag;
for (i = 4; i < argc + 4; ++i)
new_argv[i] = argv[i-3];
new_argv[argc + 3] = NULL;
execv(RUNNABLE, new_argv);
fprintf(stderr,
"%s: exec'ing %s failed (%s)\n",
argv[0], RUNNABLE, strerror(errno));
return EX_SOFTWARE;
}
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