110 static int usage(const char* exeName)  in usage()  argument
113     DISPLAY( "      %s [arg] [input] [output] \n", exeName);  in usage()
129 static int usage_advanced(const char* exeName)  in usage_advanced()  argument
132     usage(exeName);  in usage_advanced()
168 static int usage_longhelp(const char* exeName)  in usage_longhelp()  argument
170     usage_advanced(exeName);  in usage_longhelp()
196     DISPLAY( "%s will refuse to read from console, or write to console \n", exeName);  in usage_longhelp()
202     DISPLAY( "          %s filename\n", exeName);  in usage_longhelp()
207     DISPLAY( "          %s -9 -f filename \n", exeName);  in usage_longhelp()
209     DISPLAY( "          %s -9f filename \n", exeName);  in usage_longhelp()
211     DISPLAY( "%s can be used in 'pure pipe mode'. For example :\n", exeName);  in usage_longhelp()
214     DISPLAY( "          generator | %s | consumer \n", exeName);  in usage_longhelp()
220     DISPLAY( "          %s -hc filename\n", exeName);  in usage_longhelp()
223     DISPLAY( "          %s -h -c filename\n", exeName);  in usage_longhelp()
229 static int badusage(const char* exeName)  in badusage()  argument
232     if (displayLevel >= 1) usage(exeName);  in badusage()
284     const char* const exeName = lastNameFromPath(argv[0]);  in main()  local
300     if (!strcmp(exeName, LZ4CAT)) {  in main()
309     if (!strcmp(exeName, UNLZ4)) { mode = om_decompress; }  in main()
346                 if (!strcmp(argument,  "--help")) { usage_advanced(exeName); goto _cleanup; }  in main()
373                 case 'h': usage_advanced(exeName); goto _cleanup;  in main()
374                 case 'H': usage_longhelp(exeName); goto _cleanup;  in main()
426                                 if (B < 4) badusage(exeName);  in main()
432                                     if (B < 32) badusage(exeName);  in main()
477                 default : badusage(exeName);  in main()
568             if (dynNameSpace==NULL) { perror(exeName); exit(1); }  in main()
579             if (dynNameSpace==NULL) { perror(exeName); exit(1); }  in main()
584 …if (outl != inl-5) { DISPLAYLEVEL(1, "Cannot determine an output filename\n"); badusage(exeName); }  in main()