Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes CID732284
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID703830
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ETIMEDOUT is not available on all platforms

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

If set non-zero, limits duration of retry_transfer_wrapper() loop, thus
affects ffurl_read*(), ffurl_write()
Measured in microseconds.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Martin Storsjö <martin@martin.st>

This reduces the dependency on unistd.h which is not available
on all systems.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Martin Storsjö <martin@martin.st>

If the designated protocol is not found, return
AVERROR_PROTOCOL_NOT_FOUND instead of AVERROR(ENOENT).

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The implicit network initialization is set to be removed in the
future, but is kept for compatibility. By not doing the implicit
initialization for non-network protocols, we avoid the warning
about avformat_network_init() not being called for these, where
it really doesn't make much sense.

Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes Ticket805

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Prepare for removing it at an upcoming major bump.

The interrupt callback has to be passed in during opening (setting it
after opening isn't enough), since a blocking open couldn't be
interrupted otherwise.

Options are passed down to procotols and also need to be available
during open() in most cases.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Not used anywhere yet, support for passing options from avio_open() will
follow.

Change all uses of these function to pass the relevant
callback on.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes Ticket618

Based on code by teratorn
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Adding _POSIX_C_SOURCE to CPPFLAGS globally produces all sorts of problems
since it causes certain system functions to be hidden on some (BSD) systems.
The solution is to only add the flag on systems that really require it, i.e.
glibc-based ones.

This change makes BSD systems compile out-of-the-box without the need for
adding specific flags manually.  It also allows dropping a number of flags
set manually on a file-per-file basis, but were only present to work around
breakage introduced by the presence of _POSIX_C_SOURCE.

Also add _XOPEN_SOURCE to CPPFLAGS for glibc systems.  We use XSI extensions
in several places already, so it is preferable to define it globally instead
of littering source files with individual #defines only needed for glibc.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>

This fixes e.g. reading data over HTTP, where the underlying
socket is set to read/write.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Make AVIO_FLAG_ access constants work as flags, and in particular fix
the behavior of functions (such as avio_check()) which expect them to
be flags rather than modes.

This breaks API.

The new function is more flexible than url_exist(), as it allows to
specify which access flags to check, and does not require an explicit
open of the checked resource.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

There's no particular reason to pollute the namespace with a typedef for
it.

It's not used anywhere internally.

Salvage its documentation for ffio_read_seek.