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ac46392f44
Examples:
```
lib/vtls/openssl.c:2585:18: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
2585 | msg_type = *(const char *)buf;
lib/vtls/openssl.c:2593:18: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
2593 | msg_type = *(const char *)buf;
tests/server/mqttd.c:514:10: warning: comparison between 'signed char' and 'unsigned char' [bugprone-signed-char-misuse]
514 | if(passwd_flag == (char)(conn_flags & passwd_flag)) {
tests/server/tftpd.c:362:13: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
362 | c = test->rptr[0];
tests/server/tftpd.c:454:9: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
454 | c = *p++; /* pick up a character */
src/tool_urlglob.c:272:46: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
272 | pat->c.ascii.letter = pat->c.ascii.min = min_c;
src/tool_urlglob.c:273:24: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
273 | pat->c.ascii.max = max_c;
tests/libtest/cli_h2_pausing.c:164:23: warning: suspicious usage of 'sizeof()' on an expression of pointer type [bugprone-sizeof-expression]
164 | memset(&resolve, 0, sizeof(resolve));
tests/libtest/cli_upload_pausing.c:158:23: warning: suspicious usage of 'sizeof()' on an expression of pointer type [bugprone-sizeof-expression]
158 | memset(&resolve, 0, sizeof(resolve));
tests/libtest/first.c:86:15: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
86 | coptopt = arg[optpos];
```
Also:
- tests/server/mqttd: drop a redundant and a wrongly signed cast.
Ref: https://clang.llvm.org/extra/clang-tidy/checks/bugprone/signed-char-misuse.html
Closes #20654
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| .. | ||
| .checksrc | ||
| .gitignore | ||
| CMakeLists.txt | ||
| dnsd.c | ||
| first.c | ||
| first.h | ||
| getpart.c | ||
| Makefile.am | ||
| Makefile.inc | ||
| mqttd.c | ||
| resolve.c | ||
| rtspd.c | ||
| sockfilt.c | ||
| socksd.c | ||
| sws.c | ||
| tftpd.c | ||
| util.c | ||