rst at ai
Mar 14, 1995, 9:37 AM
Post #2 of 5
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Randy --- I looked your form over, and found what may be part of
the problem. The cgi-postin.c code that you're using expects to
be able to get the entire request body out of the socket in one
C-library read call ---
/*
* Create space to hold the raw data and load it in.
*/
if ((buf = (char *)malloc(len+1)) == NULL)
die(0, "cannot allocate space for buffer");
if ((i = read(STDIN_FILENO, buf, len)) < 0)
die(errno, "error reading form data");
if (i != len)
die(0, "error reading form data [expected %d chars, got %d]", le
n, i);
Note that with the NCSA server, this read() always reads the
socket directly, and reads on a socket (or a pipe, for that matter)
are not guaranteed to yield the number of bytes requested, even if
that many bytes will ultimately be made available. Typically, you
only get as many as the kernel has buffered up, which may be less.
It's also *possible* that there's server trouble here --- the errors
you're seeing are consistent with HTTP request body data disappearing
into a buffer. However, if this is a problem with drtr's getline()
code, it's a subtle and system-dependant one --- I tested POST here
with drtr's code before releasing apache-pre, and it worked fine.
rst
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