Commit 5625e5d5 authored by Yang Tse's avatar Yang Tse
Browse files

add debug message and expand comment

parent 8a529bd9

tests/libtest/lib518.c

+11 −2
Original line number Diff line number Diff line
@@ -77,6 +77,8 @@ static int fopen_works(void) 
  for (i = 0; i < 3; i++) {

    fpa[i] = fopen(DEV_NULL, "r");

    if (fpa[i] == NULL) {

      store_errmsg("fopen() failed", ERRNO);

      fprintf(stderr, "%s\n", msgbuff);

      ret = 0;

      break;

    }
@@ -394,11 +396,18 @@ static int rlimit(int keep_open) 


#endif /* using a FD_SETSIZE bound select() */



  /* test stdio's capability to fopen() SAFETY_MARGIN additional files */

  /*

   * Old or 'backwards compatible' implementations of stdio do not allow

   * handling of streams with an underlying file descriptor number greater

   * than 255, even when allowing high numbered file descriptors for sockets.

   * At this point we have a big number of file descriptors which have been

   * opened using dup(), so lets test the stdio implementation and discover

   * if it is capable of fopen()ing some additional files.

   */



  if (!fopen_works()) {

    sprintf(strbuff1, fmt, num_open.rlim_max);

    sprintf(strbuff, "stdio fopen() fails with %s open() files",

    sprintf(strbuff, "stdio fopen() fails with %s fds open()",

            strbuff1);

    store_errmsg(strbuff, 0);

    fprintf(stderr, "%s\n", msgbuff);

tests/libtest/lib537.c

+11 −2
Original line number Diff line number Diff line
@@ -78,6 +78,8 @@ static int fopen_works(void) 
  for (i = 0; i < 3; i++) {

    fpa[i] = fopen(DEV_NULL, "r");

    if (fpa[i] == NULL) {

      store_errmsg("fopen() failed", ERRNO);

      fprintf(stderr, "%s\n", msgbuff);

      ret = 0;

      break;

    }
@@ -397,11 +399,18 @@ static int rlimit(int keep_open) 


#endif /* using a FD_SETSIZE bound select() */



  /* test stdio's capability to fopen() SAFETY_MARGIN additional files */

  /*

   * Old or 'backwards compatible' implementations of stdio do not allow

   * handling of streams with an underlying file descriptor number greater

   * than 255, even when allowing high numbered file descriptors for sockets.

   * At this point we have a big number of file descriptors which have been

   * opened using dup(), so lets test the stdio implementation and discover

   * if it is capable of fopen()ing some additional files.

   */



  if (!fopen_works()) {

    sprintf(strbuff1, fmt, num_open.rlim_max);

    sprintf(strbuff, "stdio fopen() fails with %s open() files",

    sprintf(strbuff, "stdio fopen() fails with %s fds open()",

            strbuff1);

    store_errmsg(strbuff, 0);

    fprintf(stderr, "%s\n", msgbuff);