Snippets for 3proxy 1.0.1 from Fedora aarch64

Sourced from https://kojipkgs.fedoraproject.org/packages/3proxy/1.0.1/1.fc46/data/logs/aarch64/build.log.

• /usr/include/bits/stdio2.h:30:10: warning: ‘buf’ may be used uninitialized [-Wmaybe-uninitialized]
     30 |   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     31 |                                   __glibc_objsize (__s), __fmt,
        |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     32 |                                   __va_arg_pack ());
        |                                   ~~~~~~~~~~~~~~~~~
  

• ssllib.c:82:18: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
     82 |         if(!(ext = X509_get_ext(src_cert, idx))) return 0;
        |                  ^
  

• datatypes.c:107:31: warning: ‘%d’ directive writing between 1 and 11 bytes into a region of size 3 [-Wformat-overflow=]
    107 |         return sprintf(buf, "/%d", i);
        |                               ^~
  

• proxy.c:509:66: warning: value computed is not used [-Wunused-value]
    509 |                 (se = (unsigned char *)strchr((char *)sb, '\r')) || (se = (unsigned char *)strchr((char *)sb, '\n'));
        |                                                                  ^~
  

• httpsrv.c:1223:17: warning: ‘strncpy’ output may be truncated copying 255 bytes from a string of length 255 [-Wstringop-truncation]
   1223 |                 strncpy(r->lasthost, r->host, 255);
        |                 ^
  

• conf.c:1313:41: warning: unused variable ‘pattern’ [-Wunused-variable]
   1313 |                          unsigned char *pattern;
        |                                         ^~~~~~~
  

• webadmin.c:506:15: warning: variable ‘buf’ set but not used [-Wunused-but-set-variable=]
    506 |         char *buf;
        |               ^~~
  

• proxy.c:163:12: warning: ‘growbuf’ defined but not used [-Wunused-function]
    163 | static int growbuf(unsigned char **buf, int *bufsize, int need){
        |            ^~~~~~~