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   MBSE      The Linux/FreeBSD MBSE BBS Support Echo      2,445 messages   

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   Message 2,060 of 2,445   
   James Digriz to All   
   GCC 8.3 compiler warnings on CentOS 8   
   02 Sep 20 17:59:46   
   
   CHRS: UTF-8 4   
   MSGID: 1:123/755@fidonet 5a62c441   
   PID: MBSE-BBS 1.0.7.18 (GNU/Linux-x86_64)   
   TZUTC: -0400   
   TID: MBSE-FIDO 1.0.7.18 (GNU/Linux-x86_64)   
   Anyone else tried compiling on 8? Goes to completion but I'm getting piles of   
   warnings about string truncation and such. Eg:    
      
   .   
   .   
   .   
      
   log.c: In function ‘dolastlog’:   
   log.c:89:2: warning: ‘strncpy’ specified bound 32 equals destination size   
   [-Wstringop-truncation]   
     strncpy(newlog.ll_line, line, sizeof newlog.ll_line);   
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~   
   gcc -O2 -fno-strict-aliasing -Wall -Wshadow -Wwrite-strings    
   -Wstrict-prototypes   
   -D_REENTRANT -I/usr/local/include   -c setugid.c   
   gcc -O2 -fno-strict-aliasing -Wall -Wshadow -Wwrite-strings    
   -Wstrict-prototypes   
   -D_REENTRANT -I/usr/local/include   -c mblogin.c   
   In file included from mblogin.c:32:   
   mblogin.c: In function ‘main’:   
   mblogin.c:541:44: warning: ‘%s’ directive output may be truncated writing   
   up to 8191 bytes into a region of size 507 [-Wformat-truncation=]   
         snprintf(fromhost, sizeof fromhost, _(" on `%s' from `%s'"), tty, cp);   
                                               ^~~~~~~~~~~~~~~~~~~~   
   .   
   .   
   .   
      
   Presumably this might be something to be concerned about, but I haven't tried   
   running the resulting code yet, and won't run it as a production system until   
   somebody with more current gcc knowledge than mine weighs in.   
      
   Appreciate any input,   
   jbdigriz       
                           
      
       Greetings, James Digriz   
       email: jbdigriz@bbs.dragonsweb.org   
      
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