Fix GCC warning

source/compiler/sc1.c: In function ‘check_tagmismatch_multiple’:
source/compiler/sc1.c:3482:40: warning: ‘"’ directive writing 1 byte into a region of size between 0 and 4094 [-Wformat-overflow=]
         sprintf(formal_tagnames,"%s\"%s\"",formal_tagnames,(tagsym!=NULL) ? tagsym->name : "-unknown-");
                                        ^~
source/compiler/sc1.c:3482:9: note: ‘sprintf’ output 3 or more bytes (assuming 4097) into a destination of size 4095
         sprintf(formal_tagnames,"%s\"%s\"",formal_tagnames,(tagsym!=NULL) ? tagsym->name : "-unknown-");
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This commit is contained in:
Zeex 2019-09-22 17:23:26 +06:00
parent ad730d32d8
commit 65d6c98fc2

View File

@ -3469,8 +3469,9 @@ SC_FUNC void check_tagmismatch_multiple(int formaltags[],int numtags,int actualt
if (!checktag(formaltags, numtags, actualtag)) {
int i;
constvalue *tagsym;
char formal_tagnames[sLINEMAX]="",actual_tagname[sNAMEMAX+2]="none (\"_\")";
char formal_tagnames[sLINEMAX+1]="",actual_tagname[sNAMEMAX+2]="none (\"_\")";
int notag_allowed=FALSE,add_comma=FALSE;
size_t size;
for (i=0; i<numtags; i++) {
if(formaltags[i]!=0) {
if((i+1)==numtags && add_comma==TRUE && notag_allowed==FALSE)
@ -3479,7 +3480,13 @@ SC_FUNC void check_tagmismatch_multiple(int formaltags[],int numtags,int actualt
strlcat(formal_tagnames,", ",sizeof(formal_tagnames));
add_comma=TRUE;
tagsym=find_tag_byval(formaltags[i]);
sprintf(formal_tagnames,"%s\"%s\"",formal_tagnames,(tagsym!=NULL) ? tagsym->name : "-unknown-");
size=snprintf(formal_tagnames,
sizeof(formal_tagnames),
"%s\"%s\"",
formal_tagnames,
(tagsym!=NULL) ? tagsym->name : "-unknown-");
if (size>=sizeof(formal_tagnames))
break;
} else {
notag_allowed=TRUE;
} /* if */