3 Commits

Author	SHA1	Message	Date
Eric Blake	cc5e2a849c	command: improve behavior on no output ... Guarantee that outbuf/errbuf are allocated on success, even if to the empty string. Caller always has to free the result, and empty output check requires checking if *outbuf=='\0'. Makes the API easier to use safely. Failure is best effort allocation (some paths, like out-of-memory, cannot allocate a buffer, but most do), so caller must free buffer on failure. * docs/internals/command.html.in: Update documentation. * src/util/command.c (virCommandSetOutputBuffer) (virCommandSetErrorBuffer, virCommandProcessIO) Guarantee empty string on no output. * tests/commandtest.c (test17): New test.	2010-12-07 15:35:30 -07:00
Eric Blake	ee11729d7f	command: enforce fd vs. buffer considerations ... * docs/internals/command.html.in: Better documentation of buffer vs. fd considerations. * src/util/command.c (virCommandRunAsync): Reject raw execution with string io. (virCommandRun): Reject execution with user-specified fds not visiting a regular file.	2010-12-07 15:30:24 -07:00
Daniel P. Berrange	a317c50a04	virCommand: docs for usage of new command APIs ... * docs/internals/command.html.in: New file. * docs/Makefile.am: Build new docs. * docs/subsite.xsl: New glue file. * docs/internals.html.in, docs/sitemap.html.in: Update glue.	2010-12-02 16:00:47 -07:00