mk-mk-ctxt

#!/bin/sh

fatal()
{
  echo "mk-mk-ctxt: fatal: $1" 1>&2
  exit 1
}

cleanup()
{
  rm -f mk-ctxt.c mk-ctxt.o
}

#
# check if base directory was specified
#

BASE_DIR="."
echo "$1" | grep '^@' 2>&1 >/dev/null
if [ $? -eq 0 ]
then
  BASE_DIR=`echo $1 | sed 's/^@//g'`
  shift
fi

CC=`head -n 1 ${BASE_DIR}/conf-cc`
if [ $? -ne 0 ]
then
  fatal "could not read ${BASE_DIR}/conf-cc"
fi

LD=`head -n 1 ${BASE_DIR}/conf-ld`
if [ $? -ne 0 ]
then
  fatal "could not read ${BASE_DIR}/conf-ld"
fi

(cat << EOF
#include <stdio.h>
#include <unistd.h>

char buf[1024];

int main(int argc, char **argv)
{
  char *name;
  unsigned long bytes = 0;
  unsigned int line = 0;
  long num;
  long r;
  long i;
  int ch;
  int done = 0;

  if (argc != 2) return 100;
  name = argv[1];

  printf("char %s[] = {\n", name);
  while (!done) {
    r = read(0, buf, sizeof(buf));
    if (r == 0) done = 1;
    if (r == -1) return 112;
    if (r != sizeof(buf)) {
      for (i = r; i > 0; --i) {
        if (buf[i] == '\n') {
          buf[i] = 0;
          break;
        }
      }
    }
    num = 0;
    while (num != r) {
      ch = buf[num];
      ++num;
      ++bytes;
      printf("0x%.2x, ", ch);
      line += 6;
      if (line >= 72) { line = 0; printf("\n"); }
    }
  }
  printf("0x00,\n};\n");
  printf("const unsigned int %s_len = %u;\n", name, bytes);

  if (fflush(stdout) == -1) return 111;
  return 0;
}
EOF
) > mk-ctxt.c || fatal "could not create mk-ctxt.c"

${CC} -c -o mk-ctxt.o mk-ctxt.c || fatal "could not compile mk-ctxt.c"
${LD} -o mk-ctxt mk-ctxt.o      || fatal "could not link mk-ctxt"
cleanup