Jiri Daněk created PROTON-2772:
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Summary: [c] Add parameter safety annotations for printf format
strings
Key: PROTON-2772
URL: https://issues.apache.org/jira/browse/PROTON-2772
Project: Qpid Proton
Issue Type: Improvement
Components: proton-c
Affects Versions: proton-c-0.39.0
Reporter: Jiri Daněk
Assignee: Jiri Daněk
Fix For: proton-c-0.40.0
There seem to be various mismatched printf format arguments. This is best
resolved by annotating the string format parameters so that regular compilation
warns on the mismatches as they happen.
Proton already has some of this, but it is incomplete.
{noformat}
```
/home/jdanek/repos/qpid/qpid-proton/c/src/core/logger.c: In function
‘pni_logger_log_raw’:
/home/jdanek/repos/qpid/qpid-proton/c/src/core/logger.c:204:41: error: format
‘%x’ expects argument of type ‘unsigned int’, but argument 4 has type ‘size_t’
{aka ‘long unsigned int’} [-Werror=format=]
204 | pn_fixed_string_addf(&out, "%04x/%04x: ", i, size);
| ~~~^ ~~~~
| | |
| | size_t {aka long
unsigned int}
| unsigned int
| %04lx
cc1: all warnings being treated as errors
```
{noformat}
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