105 static int usage(const char* exeName)  in usage()  argument
108     DISPLAY( "      %s [arg] [input] [output] \n", exeName);  in usage()
125 static int usage_advanced(const char* exeName)  in usage_advanced()  argument
128     usage(exeName);  in usage_advanced()
167 static int usage_longhelp(const char* exeName)  in usage_longhelp()  argument
169     usage_advanced(exeName);  in usage_longhelp()
195     DISPLAY( "%s will refuse to read from console, or write to console \n", exeName);  in usage_longhelp()
201     DISPLAY( "          %s filename\n", exeName);  in usage_longhelp()
206     DISPLAY( "          %s -9 -f filename \n", exeName);  in usage_longhelp()
208     DISPLAY( "          %s -9f filename \n", exeName);  in usage_longhelp()
210     DISPLAY( "%s can be used in 'pure pipe mode'. For example :\n", exeName);  in usage_longhelp()
213     DISPLAY( "          generator | %s | consumer \n", exeName);  in usage_longhelp()
219         DISPLAY( "          %s -hc filename \n", exeName);  in usage_longhelp()
222         DISPLAY( "          %s -h -c filename \n", exeName);  in usage_longhelp()
228 static int badusage(const char* exeName)  in badusage()  argument
231     if (displayLevel >= 1) usage(exeName);  in badusage()
253 static int exeNameMatch(const char* exeName, const char* test)  in exeNameMatch()  argument
255     return !strncmp(exeName, test, strlen(test)) &&  in exeNameMatch()
256         (exeName[strlen(test)] == '\0' || exeName[strlen(test)] == '.');  in exeNameMatch()
332     const char* const exeName = lastNameFromPath(argv[0]);  local
348     if (exeNameMatch(exeName, LZ4CAT)) {
358     if (exeNameMatch(exeName, UNLZ4)) { mode = om_decompress; }
359     if (exeNameMatch(exeName, LZ4_LEGACY)) { g_lz4c_legacy_commands=1; }
399                 if (!strcmp(argument,  "--help")) { usage_advanced(exeName); goto _cleanup; }
411                               badusage(exeName);
415                             badusage(exeName);
449                 case 'h': usage_advanced(exeName); goto _cleanup;
450                 case 'H': usage_longhelp(exeName); goto _cleanup;
466                             badusage(exeName);
523                                 if (B < 4) badusage(exeName);
529                                     if (B < 32) badusage(exeName);
577                 default : badusage(exeName);
691             if (dynNameSpace==NULL) { perror(exeName); exit(1); }
702             if (dynNameSpace==NULL) { perror(exeName); exit(1); }
707 …if (outl != inl-5) { DISPLAYLEVEL(1, "Cannot determine an output filename\n"); badusage(exeName); }