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2010-05-03Fix tiny leak in qemu_opts_parseJan Kiszka1-2/+2
qemu_opts_create duplicates the id we pass in case it shall be stored in the opts. So we do not need to dup it in qemu_opts_parse, leaking a few bytes this way. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-04-18error: Convert qemu_opts_validate() to QErrorMarkus Armbruster1-2/+1
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: Convert qemu_opts_set() to QErrorMarkus Armbruster1-10/+7
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: Convert qemu_opts_create() to QErrorMarkus Armbruster1-2/+2
Fixes device_add to report duplicate ID properly in QMP, as DuplicateId instead of UndefinedError. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-03-18Fix OpenBSD linker warningBlue Swirl1-1/+2
qemu-option.o(.text+0x20f8): In function `qemu_opts_from_qdict_1': /src/qemu/qemu-option.c:813: warning: strcpy() is almost always misused, please use strlcpy() Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-16qemu-option: Move the implied first name into QemuOptsListMarkus Armbruster1-1/+6
We sometimes permit omitting the first option name, for example -device foo is short for -device driver=foo. The name to use ("driver" in the example) is passed as argument to qemu_opts_parse(). For each QemuOptsList, we use at most one such name. Move the name into QemuOptsList, and pass whether to permit the abbreviation. This ensures continued consistency, and simplifies the commit after next in this series.
2010-03-16qemu-option: Functions to convert to/from QDictMarkus Armbruster1-0/+79
The functions are somewhat restricted. Good enough for the job at hand. We'll extend them when we need more.
2010-03-16error: Infrastructure to track locations for error reportingMarkus Armbruster1-0/+7
New struct Location holds a location. So far, the only location is LOC_NONE, so this doesn't do anything useful yet. Passing the current location all over the place would be too cumbersome. Hide it away in static cur_loc instead, and provide accessors. Print it in error_report(). Store it in QError, and print it in qerror_print(). Store it in QemuOpt, for use by qemu_opts_foreach(). This makes error_report() do the right thing when it runs within qemu_opts_foreach(). We may still have to store it in other data structures holding user input for better error messages. Left for another day.
2010-02-21Allow const QemuOptDescBlue Swirl1-3/+3
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-03qemu-option: Make qemu_opts_foreach() accumulate return valuesMarkus Armbruster1-1/+1
Return the bitwise inclusive or of all return values instead of the last call's value. This lets you find out whether any of the calls returned a non-zero value. No functional change, as existing users either don't care for the value, or pass non-zero abort_on_failure, which breaks the loop on the first non-zero return value. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12QemuOpts: allow larger option values.Gerd Hoffmann1-2/+2
Use case: loooooooooooooooooong file names for -drive file=... Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03qemu-opts: Release id on deletionJan Kiszka1-1/+2
The opts id is always allocated via qemu_strdup, so it need not be const, but it has to be released on opts deletion. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Never overwrite a QemuOptMark McLoughlin1-28/+23
Rather than overwriting a QemuOpt, just add a new one to the tail and always do a reverse search for parameters to preserve the same behaviour. We use this order so that foreach() iterates over the opts in their original order. This will allow us handle options where multiple values for the same parameter is allowed - e.g. -net user,hostfwd= Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Add qemu_opts_validate() for post parsing validationMark McLoughlin1-0/+33
Several qemu command line options have a parameter whose value affects what other parameters are accepted for the option. In these cases, we can have an empty description table in the QemuOptsList and once the option has been parsed we can use a suitable description table to validate the other parameters based on the value of that parameter. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Make qemu_opts_parse() handle empty stringsMark McLoughlin1-3/+1
Rather than making callers explicitly handle empty strings by using qemu_opts_create(), we can easily have qemu_opts_parse() handle empty parameter strings. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Remove bogus error message from qemu_opts_set()Mark McLoughlin1-2/+0
The only way qemu_opts_create() can fail is if a QemuOpts with that id already exists and fail_if_exists=1. In that case, we already print an error which makes more sense than the one in qemu_opts_set(). Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-26qemu-option: rename bool -> booleanJuan Quintela1-3/+3
We need this to allow the use of <stdbool.h> Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-09-25Fix coding style issueMark McLoughlin1-3/+3
Replace: if (-1 == foo()) with: if (foo() == -1) While this coding style is not in direct contravention of our currently ratified CODING_STYLE treaty, it could be argued that the Article 3 of the European Convention on Human Rights (prohibiting torture and "inhuman or degrading treatment") reads on the matter. [This commit message was brought to you without humour, as is evidenced by the absence of any emoticons] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12Fix sys-queue.h conflict for goodBlue Swirl1-14/+14
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896, f40d753718c72693c5f520f0d9899f6e50395e94, 96555a96d724016e13190b28cffa3bc929ac60dc and 3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-11QemuOpts: split option parser into two functions.Gerd Hoffmann1-17/+29
looking for id= and creating a new QemuOpts instance is splitted from the actual option parser code now, so the parser can be called from other contexts too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-09mv from strdup to qemu_strdup in qemu-option.cJean-Christophe DUBOIS1-3/+3
one place is using strdup() instead of qemu_strdup Fix it Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-10QemuOpts: qemu_opts_parse: fix id= parsingGerd Hoffmann1-1/+6
We can't use get_param_value(), it can't handle parameters without '=' in there. Examples not working because of that: -device foo,id=bar -device file=/path/image,format=qcow2,snapshot,id=disk0 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
2009-08-10QemuOpts: add some functionsGerd Hoffmann1-0/+19
qemu_opt_foreach: loop over all QemuOpts entries. qemu_opts_id: return QemuOpts id. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
2009-07-30qemu-option: fix parse_option_number().Gerd Hoffmann1-0/+1
It works much better when parse_option_number actually returns the number parsed ... Common breakage resulting from this bug is that 'qemu -hda foo.img -cdrom bar.iso' stops working (cdrom isn't there). Cc: Avi Kivity <avi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27QemuOpts: framework for storing and parsing options.Gerd Hoffmann1-0/+314
This stores device parameters in a better way than unparsed strings. New types: QemuOpt - one key-value pair. QemuOpts - group of key-value pairs, belonging to one device, i.e. one drive. QemuOptsList - list of some kind of devices, i.e. all drives. Functions are provided to work with these types. The plan is that some day we will pass around QemuOpts pointers instead of strings filled with "key1=value1,key2=value2". Check out the next patch to see all this in action ;) Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27qemu-option: factor out parse_option_sizeGerd Hoffmann1-26/+36
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27qemu-option: factor out parse_option_boolGerd Hoffmann1-12/+22
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27move parser functions from vl.c to qemu-option.cGerd Hoffmann1-0/+64
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-06qemu-img: Print available options with -o ?Kevin Wolf1-0/+13
This patch adds a small help text to each of the options in the block drivers which can be displayed by using qemu-img create -f fmt -o ? Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2009-05-22Create qemu-option.hKevin Wolf1-0/+349
This patch creates a new header file and the corresponding implementation file for parsing of parameter strings for options (like used in -drive). Part of this is code moved from vl.c (so qemu-img can use it later). The idea is to have a data structure describing all accepted parameters. When parsing a parameter string, the structure is copied and filled with the parameter values. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>