Connect to the addresses from `getaddrinfo(3)`,
alternating between address family,
starting with ipv6 and wait `fetchConnDelay`
between each connection attempt.
If a connection is established within the attempts,
use this connection and close all others.
If `connect(3)` returns `ENETUNREACH`, don't attempt more
connections with the failing address family.
If there are no more addresses to attempt,
wait for `fetchConnTimeout` and return the first established
connection.
If no connection was established within the timeouts,
close all sockets and return -1 and set errno to
`ETIMEDOUT`.
faster: use a hash table with pkg names on the transaction dict,
the process of collecting and sorting is now 50x faster or
even more (kde5).
bugs: this now detects cyclic deps and returns with an appropropiate
return value: ELOOP and ENOENT in xbps-query(1) --fulldeptree.
Ping me if you need more details :-)
Close https://github.com/void-linux/xbps/issues/16
Close https://github.com/void-linux/xbps/issues/5
The order of entries in files.plist is inconsistent
between different releases of xbps. Hence they must be
ordered before removal to, so sub directories are removed
before their parents.
Before this patch xbps had a constant slice count for every thread.
This resulted in unbalanced thread usage if the workload was
homogenous over the slices.
This patch replaces the naive slice count approach by spinlock based
reservation.
This is a trickier situation.
The original message:
```
initend.c:423:10: error: ‘%s’ directive output may be truncated writing 15 bytes into a region of size between 1 and 512 [-Werror=format-truncation=]
"%s%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
^~
initend.c:422:3: note: ‘snprintf’ output between 16 and 527 bytes into a destination of size 512
snprintf(xhp->confdir, sizeof(xhp->confdir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XBPS_SYSCONF_PATH);
~~~~~~~~~~~~~~~~~~
initend.c:429:7: error: ‘snprintf’ output may be truncated before the last format character [-Werror=format-truncation ]
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
^~~~~~~
initend.c:428:3: note: ‘snprintf’ output 2 or more bytes (assuming 513) into a destination of size 512
snprintf(xhp->confdir, sizeof(xhp->confdir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
initend.c:434:9: error: ‘%s’ directive output may be truncated writing 17 bytes into a region of size between 1 and 512 [-Werror=format-truncation=]
"%s%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
^~
initend.c:433:2: note: ‘snprintf’ output between 18 and 529 bytes into a destination of size 512
snprintf(sysconfdir, sizeof(sysconfdir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XBPS_SYSDEFCONF_PATH);
~~~~~~~~~~~~~~~~~~~~~
initend.c:455:11: error: ‘%s’ directive output may be truncated writing 14 bytes into a region of size between 0 and 511 [-Werror=format-truncation=]
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
^~
initend.c:454:3: note: ‘snprintf’ output between 16 and 527 bytes into a destination of size 512
snprintf(xhp->cachedir, sizeof(xhp->cachedir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XBPS_CACHE_PATH);
~~~~~~~~~~~~~~~~
initend.c:461:7: error: ‘snprintf’ output may be truncated before the last format character [-Werror=format-truncation ]
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
^~~~~~~
initend.c:460:3: note: ‘snprintf’ output 2 or more bytes (assuming 513) into a destination of size 512
snprintf(xhp->cachedir, sizeof(xhp->cachedir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
initend.c:467:11: error: ‘%s’ directive output may be truncated writing 12 bytes into a region of size between 0 and 511 [-Werror=format-truncation=]
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
^~
initend.c:466:3: note: ‘snprintf’ output between 14 and 525 bytes into a destination of size 512
snprintf(xhp->metadir, sizeof(xhp->metadir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "",
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XBPS_META_PATH);
~~~~~~~~~~~~~~~
initend.c:473:7: error: ‘snprintf’ output may be truncated before the last format character [-Werror=format-truncation ]
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
^~~~~~~
initend.c:472:3: note: ‘snprintf’ output 2 or more bytes (assuming 513) into a destination of size 512
snprintf(xhp->metadir, sizeof(xhp->metadir),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s/%s", strcmp(xhp->rootdir, "/") ? xhp->rootdir : "", buf);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
```
It's basically warning about dangerous operations on strings. And as
far as I could tell, is a valid warning and not a false alarm!
This fix makes the concept of `XBPS_MAXPATH` lose a little bit of sense
as now it doesn't necessarily represent the max size of the paths used
by xbps, but instead the max allowed size of the path configured.
I think this change is ok, but I wasn't able to find any reference to
why it was chosen to be 512. POSIX mandates at least 256, so I'm not
breaking anything that wasn't broken already, and Linux seems to have
a maximum size of 4096, which is pretty safe.
Therefore, this changes should be harmless. I think.
When trying to compile the file ftp.c, I get errors related with
warnings that were marked to be reported as error.
This was the original message:
```
fetch/ftp.c:444:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
type = 'D';
~~~~~^~~~~
fetch/ftp.c:445:2: note: here
case 'D':
^~~~
fetch/ftp.c: In function ‘ftp_request’:
fetch/ftp.c:342:3: error: missed loop optimization, the loop counter may overflow [-Werror=unsafe-loop-optimizations]
for (i = 0; i <= len && i <= end - dst; ++i)
^~~
fetch/ftp.c:342:24: error: missed loop optimization, the loop counter may overflow [-Werror=unsafe-loop-optimizations]
for (i = 0; i <= len && i <= end - dst; ++i)
~~~~~~~~~^~~~~~~~~~~~~~~~~
```
$ARCH-repodata is currently not protected by a signature. While most of
the package metadata is also embedded into the .xbps files, which are
protected by a signature, xbps-install ignores it
(1670ff000d/lib/package_unpack.c (L123))
and relies entirely on $ARCH-repodata.
This enables anyone who is able to modify the $ARCH-repodata to
substitute packages. This patch adds a check that verifies the signed
pkgver matches the one in the repodata, so at least downgrades posing as
updates are detected.
This is an incomplete fix as the whole transaction is still set up with
the unsigned repodata and other issues surely exist. The real fix is
signing $ARCH-repodata.
Calling EVP_cleanup here undoes initialization already done in
lib/fetch/common.c ssl_init() causing subsequent attempts to call
SSL_CTX_new() to fail. Which ultimately is the root cause for #170.
Fixes#170
