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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup iramfs
  30.  * @brief   Loads inlined data onto tmpfs.
  31.  * @{
  32.  */
  33. /**
  34.  * @file
  35.  */
  36.  
  37. #include <stdio.h>
  38. #include <fcntl.h>
  39. #include <unistd.h>
  40. #include <vfs/vfs.h>
  41. #include <sys/types.h>
  42. #include "data.h"
  43.  
  44. #define min(a,b) ((a)>(b) ? (b) : (a))
  45.  
  46. int write_file(const uint8_t *data, size_t length, const char *file_name)
  47. {
  48.     int nbytes;
  49.     uint8_t *dp;
  50.     int written;
  51.     int fd;
  52.     int cnt;
  53.  
  54.     printf("Create %s\n", file_name);
  55.  
  56.     fd = open(file_name, O_CREAT);
  57.     if (fd < 0) { printf("open failed\n"); return -1; }
  58.  
  59.     printf("write %d bytes...\n", length);
  60.     nbytes = length; dp = data; written = 0;
  61.     while (nbytes > 0) {
  62.         cnt = write(fd, dp, min(16384, nbytes));
  63.         if (cnt < 0) { printf("write failed\n"); return -1; }
  64.         dp += cnt;
  65.         written += cnt;
  66.         nbytes -= cnt;
  67.         printf("written: %d, cnt: %d, left: %d\n", written, cnt, nbytes);
  68.     }
  69.  
  70.     printf("\nwritten %d bytes\n", written);
  71.     close(fd);
  72.  
  73.     return 0;
  74. }
  75.  
  76. int main(int argc, char *argv[])
  77. {
  78.     int rc;
  79.  
  80.     printf("This is iramfs\n");
  81.     do {
  82.         rc = mount("tmpfs", "/", "nulldev0");
  83.         printf("mount tmpfs on / -> %d\n", rc);
  84.         if (rc == 0) break;
  85.  
  86.         usleep(1000 * 1000);
  87.     } while (1);
  88.  
  89.     if (write_file(rtld, rtld_size, rtld_filename) < 0) return 1;
  90.     if (write_file(dltest, dltest_size, dltest_filename) < 0) return 1;
  91.     if (write_file(libc, libc_size, libc_filename) < 0) return 1;
  92.  
  93.     printf("done\n");
  94.     getchar();
  95.     return 0;
  96. }
  97.  
  98. /** @}
  99.  */
  100.