units-2.22-6.fc39

List of Findings

Error: GCC_ANALYZER_WARNING (CWE-457): [#def1]
units-2.22-build/units-2.22/parse.tab.c:1445:9: warning[-Wanalyzer-use-of-uninitialized-value]: use of uninitialized value ‘yyss’
units-2.22-build/units-2.22/parse.y:522:1: enter_function: entry to ‘parseunit’
units-2.22-build/units-2.22/parse.y:534:7: call_function: calling ‘unitsparse’ from ‘parseunit’
# 1443|           if (! yyptr)
# 1444|             goto yyexhaustedlab;
# 1445|->         YYSTACK_RELOCATE (yyss_alloc, yyss);
# 1446|           YYSTACK_RELOCATE (yyvs_alloc, yyvs);
# 1447|   # undef YYSTACK_RELOCATE

Error: GCC_ANALYZER_WARNING (CWE-457): [#def2]
units-2.22-build/units-2.22/parse.tab.c:1560:3: warning[-Wanalyzer-use-of-uninitialized-value]: use of uninitialized value ‘*<unknown>.number’
units-2.22-build/units-2.22/parse.y:522:1: enter_function: entry to ‘parseunit’
units-2.22-build/units-2.22/parse.y:534:7: call_function: calling ‘unitsparse’ from ‘parseunit’
# 1558|        unconditionally makes the parser a bit smaller, and it avoids a
# 1559|        GCC warning that YYVAL may be used uninitialized.  */
# 1560|->   yyval = yyvsp[1-yylen];
# 1561|   
# 1562|   

Error: COMPILER_WARNING (CWE-563): [#def3]
units-2.22-build/units-2.22/units.c: scope_hint: In function ‘readunits’
units-2.22-build/units-2.22/units.c:807:41: warning[-Wunused-value]: value computed is not used
#  807 | #define readerror (goterr=1) && errfile && fprintf
#      |                                         ^~
units-2.22-build/units-2.22/units.c:1648:9: note: in expansion of macro ‘readerror’
# 1648 |         readerror(errfile, "%s: %s on line %d of '%s'\n",
#      |         ^~~~~~~~~
#  805|   
#  806|   
#  807|-> #define readerror (goterr=1) && errfile && fprintf
#  808|   
#  809|   #define VAGUE_ERR "%s: error in units file '%s' line %d\n", \

Error: CPPCHECK_WARNING (CWE-401): [#def4]
units-2.22-build/units-2.22/units.c:1411: error[memleakOnRealloc]: Common realloc mistake: 'tab' nulled but not freed upon failure
# 1409|       if (tabpt>=tablealloc){
# 1410|         tablealloc+=20;
# 1411|->       tab = (struct pair *)realloc(tab,sizeof(struct pair)*tablealloc);
# 1412|         if (!tab){
# 1413|           if (errfile) fprintf(errfile, "%s: memory allocation error (newtable)\n",

Error: CPPCHECK_WARNING (CWE-476): [#def5]
units-2.22-build/units-2.22/units.c:2391: error[ctunullpointer]: Null pointer dereference: first
# 2389|   {
# 2390|      return
# 2391|->       compareproducts(first->numerator, second->numerator, isdimless) ||
# 2392|         compareproducts(first->denominator, second->denominator, isdimless);
# 2393|   }

Error: COMPILER_WARNING (CWE-457): [#def6]
units-2.22-build/units-2.22/units.c: scope_hint: In function ‘showfunction’
units-2.22-build/units-2.22/units.c:2872:8: warning[-Wmaybe-uninitialized]: ‘not_dimensionless’ may be used uninitialized
# 2872 |     if (not_dimensionless)
#      |        ^
units-2.22-build/units-2.22/units.c:2828:7: note: ‘not_dimensionless’ was declared here
# 2828 |   int not_dimensionless, i;
#      |       ^~~~~~~~~~~~~~~~~
# 2870|       logputchar('\n');
# 2871|       for(i=strwidth(deftext);i;i--) logputchar(' ');
# 2872|->     if (not_dimensionless) 
# 2873|         logprintf("%s has units %s",func->param, func->dimen);
# 2874|       else

Error: CPPCHECK_WARNING (CWE-457): [#def7]
units-2.22-build/units-2.22/units.c:3698: error[legacyUninitvar]: Uninitialized variable: indent
# 3696|         if (errors[i]) {
# 3697|           lastchar(unittext) = '0'+i;
# 3698|->         printf("%s%s(",indent,infunc->name);
# 3699|           printf(num_format.format, factor);
# 3700|           printf("%s): %s\n", unittext, errormsg[errors[i]]);

Error: COMPILER_WARNING (CWE-563): [#def8]
units-2.22-build/units-2.22/units.c: scope_hint: In function ‘checkcwd’
units-2.22-build/units-2.22/units.c:4148:9: warning[-Wunused-variable]: unused variable ‘p’
# 4148 |   char *p;
#      |         ^
# 4146|   {
# 4147|     FILE *fp;
# 4148|->   char *p;
# 4149|   
# 4150|     fp = openfile(file, "r");

Error: CPPCHECK_WARNING (CWE-672): [#def9]
units-2.22-build/units-2.22/units.c:4553: error[deallocret]: Returning/dereferencing 'file' after it is deallocated / released
# 4551|     else {
# 4552|       fclose(testfile);
# 4553|->     return file;
# 4554|     }
# 4555|   }

Error: COMPILER_WARNING (CWE-563): [#def10]
units-2.22-build/units-2.22/units.c: scope_hint: In function ‘printversion’
units-2.22-build/units-2.22/units.c:4768:9: warning[-Wunused-variable]: unused variable ‘fp’
# 4768 |   FILE *fp, *histfile;
#      |         ^~
# 4766|     char *m_unitsfile;         /* personal units data file from HOME_UNITS_ENV */
# 4767|     char *p_unitsfile;         /* personal units data file */
# 4768|->   FILE *fp, *histfile;
# 4769|   #ifdef _WIN32
# 4770|     char *localemap;

Error: CPPCHECK_WARNING (CWE-476): [#def11]
units-2.22-build/units-2.22/units.c:5577: warning[nullPointer]: Possible null pointer dereference: lastunitstr
# 5575|     if (!value_shown) {  /* provide output if every value rounded to zero */
# 5576|       logputs("0 ");
# 5577|->     if (isdecimal(*lastunitstr))
# 5578|         logputs("* ");
# 5579|       logputs(lastunitstr);

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