Fix for bug that ignored last block in multiline package listings #10
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This bug was discovered some time ago while visiting LinkedIn with Eystein. When processing multiline package listing records, the last record was being discarded, which resulted in an incomplete package list. The patch adds the last-processed block, if any, to the list.
Contributor
|
Thanks, merged. |
olehermanse
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to olehermanse/core
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Nov 28, 2019
When compiling with explicit CFLAGS / LDFLAGS these are not handled in
the same way in different automake files.
The way we are mixing user-provided flags with configure generated ones
is not ideal, this change doesn't fix that, but it at least makes it
more consistent.
For example, compiling like this:
```
./autogen.sh --enable-debug && make CFLAGS="-fsanitize=address" LDFLAGS="-fsanitize=address"
```
Would cause the explicit flags to override flags from configure when
building cf-agent, but not in cf-promises. The end result is that debug
info (line numbers) is missing in some places.
**Before change:**
```
Direct leak of 9 byte(s) in 1 object(s) allocated from:
#0 0x7fc5c3640538 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x77538)
#1 0x7fc5c31badc0 in xstrdup /home/vagrant/cfe/core/libntech/libutils/alloc.c:58
#2 0x559ddf51b064 in VerifyNotInFstab (/var/cfengine/bin/cf-agent+0xa0064)
#3 0x559ddf4d6bd1 in VerifyMountPromise (/var/cfengine/bin/cf-agent+0x5bbd1)
#4 0x559ddf4d506c in VerifyStoragePromise (/var/cfengine/bin/cf-agent+0x5a06c)
#5 0x559ddf529cd9 in LocateFilePromiserGroup (/var/cfengine/bin/cf-agent+0xaecd9)
#6 0x559ddf4d4a83 in FindStoragePromiserObjects (/var/cfengine/bin/cf-agent+0x59a83)
#7 0x559ddf4d4a2d in FindAndVerifyStoragePromises (/var/cfengine/bin/cf-agent+0x59a2d)
#8 0x559ddf4b7239 in KeepAgentPromise (/var/cfengine/bin/cf-agent+0x3c239)
#9 0x7fc5c3138372 in ExpandPromiseAndDo /home/vagrant/cfe/core/libpromises/expand.c:215
cfengine#10 0x7fc5c3138713 in ExpandPromise /home/vagrant/cfe/core/libpromises/expand.c:283
cfengine#11 0x559ddf4b5e43 in ScheduleAgentOperations (/var/cfengine/bin/cf-agent+0x3ae43)
cfengine#12 0x559ddf4b5656 in KeepPromiseBundles (/var/cfengine/bin/cf-agent+0x3a656)
cfengine#13 0x559ddf4b2870 in KeepPromises (/var/cfengine/bin/cf-agent+0x37870)
cfengine#14 0x559ddf4b025b in main (/var/cfengine/bin/cf-agent+0x3525b)
cfengine#15 0x7fc5c238cb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
```
**After change:**
```
Direct leak of 9 byte(s) in 1 object(s) allocated from:
#0 0x7fb282da4538 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x77538)
#1 0x7fb28291edc0 in xstrdup /home/vagrant/cfe/core/libntech/libutils/alloc.c:58
#2 0x55d8be8f6064 in VerifyNotInFstab /home/vagrant/cfe/core/cf-agent/nfs.c:541
#3 0x55d8be8b1bd1 in VerifyMountPromise /home/vagrant/cfe/core/cf-agent/verify_storage.c:491
#4 0x55d8be8b006c in VerifyStoragePromise /home/vagrant/cfe/core/cf-agent/verify_storage.c:146
#5 0x55d8be904cd9 in LocateFilePromiserGroup /home/vagrant/cfe/core/cf-agent/promiser_regex_resolver.c:62
#6 0x55d8be8afa83 in FindStoragePromiserObjects /home/vagrant/cfe/core/cf-agent/verify_storage.c:84
#7 0x55d8be8afa2d in FindAndVerifyStoragePromises /home/vagrant/cfe/core/cf-agent/verify_storage.c:75
#8 0x55d8be892239 in KeepAgentPromise /home/vagrant/cfe/core/cf-agent/cf-agent.c:1697
#9 0x7fb28289c372 in ExpandPromiseAndDo /home/vagrant/cfe/core/libpromises/expand.c:215
cfengine#10 0x7fb28289c713 in ExpandPromise /home/vagrant/cfe/core/libpromises/expand.c:283
cfengine#11 0x55d8be890e43 in ScheduleAgentOperations /home/vagrant/cfe/core/cf-agent/cf-agent.c:1431
cfengine#12 0x55d8be890656 in KeepPromiseBundles /home/vagrant/cfe/core/cf-agent/cf-agent.c:1344
cfengine#13 0x55d8be88d870 in KeepPromises /home/vagrant/cfe/core/cf-agent/cf-agent.c:831
cfengine#14 0x55d8be88b25b in main /home/vagrant/cfe/core/cf-agent/cf-agent.c:279
cfengine#15 0x7fb281af0b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
```
Changelog: None
Signed-off-by: Ole Herman Schumacher Elgesem <ole@northern.tech>
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This bug was discovered some time ago while visiting LinkedIn with Eystein.
When processing multiline package listing records, the last record was being
discarded, which resulted in an incomplete package list. The patch adds the
last-processed block, if any, to the list.