[
https://issues.apache.org/jira/browse/HDFS-16667?focusedWorklogId=791850&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-791850
]
ASF GitHub Bot logged work on HDFS-16667:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 18/Jul/22 05:33
Start Date: 18/Jul/22 05:33
Worklog Time Spent: 10m
Work Description: GauthamBanasandra opened a new pull request, #4576:
URL: https://github.com/apache/hadoop/pull/4576
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### Description of PR
Currently, a variable is used to specify the array size in uriparser2 -
https://github.com/apache/hadoop/blob/34e548cb62ed21c5bba7a82f5f1489ca6bdfb8c4/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/uriparser2/uriparser2/uriparser2.c#L71-L79
This results in the following error on Windows -
```
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\cl
: command line warning D9025: overriding '/W4' with '/w'
uriparser2.c
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,23):
error C2057: expected constant expression
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,23):
error C2466: cannot allocate an array of constant size 0
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,24):
error C2133: 'buffer': unknown size
```
I've used malloc to fix this.
### How was this patch tested?
1. Tested this locally by building on my Windows system.
2. Hadoop Jenkins CI validation.
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
Issue Time Tracking
-------------------
Worklog Id: (was: 791850)
Remaining Estimate: 0h
Time Spent: 10m
> Use malloc for buffer allocation in uriparser2
> ----------------------------------------------
>
> Key: HDFS-16667
> URL: https://issues.apache.org/jira/browse/HDFS-16667
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: libhdfs++
> Affects Versions: 3.4.0
> Environment: Windows 10
> Reporter: Gautham Banasandra
> Assignee: Gautham Banasandra
> Priority: Major
> Labels: libhdfscpp
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, a variable is used to specify the array size in *uriparser2* -
> https://github.com/apache/hadoop/blob/34e548cb62ed21c5bba7a82f5f1489ca6bdfb8c4/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/uriparser2/uriparser2/uriparser2.c#L71-L79
> {code:cpp}
> static int parse_int(const char *first, const char *after_last) {
> const int size = after_last - first;
> if (size) {
> char buffer[size + 1];
> memcpyz(buffer, first, size);
> return atoi(buffer);
> }
> return 0;
> }
> {code}
> This results in the following error on Windows -
> {code}
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\cl :
> command line warning D9025: overriding '/W4' with '/w'
> uriparser2.c
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,23):
> error C2057: expected constant expression
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,23):
> error C2466: cannot allocate an array of constant size 0
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\main\native\libhdfspp\third_party\uriparser2\uriparser2\uriparser2.c(74,24):
> error C2133: 'buffer': unknown size
> {code}
> Thus, we need to use malloc to fix this.
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