clear some more format-overflow warnings

clear some -Wformat-overflow warnings being experienced with
i586-pc-msdosdjgpp-gcc (GCC) 10.2.0 cross-compiler

--
Warnings log:

botl.c: In function 'status_hilite_menu_add':
botl.c:3661:38: warning: ' or ' directive writing 4 bytes into a region of size between 1 and 80 [-Wformat-overflow=]
 3661 |                     Sprintf(obuf, "%s or %s",
      |                                      ^~~~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from botl.c:6:
../include/global.h:274:24: note: 'sprintf' output between 5 and 163 bytes into a destination of size 80
  274 | #define Sprintf (void) sprintf
botl.c:3661:21: note: in expansion of macro 'Sprintf'
 3661 |                     Sprintf(obuf, "%s or %s",
      |                     ^~~~~~~

do_name.c: In function 'getpos_menu':
do_name.c:594:37: warning: 'sprintf' may write a terminating nul past the end of the destination [-Wformat-overflow=]
  594 |             Sprintf(fullbuf, "%s%s%s", firstmatch,
      |                                     ^
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from do_name.c:6:
../include/global.h:274:24: note: 'sprintf' output 1 or more bytes (assuming 257) into a destination of size 256
  274 | #define Sprintf (void) sprintf
do_name.c:594:13: note: in expansion of macro 'Sprintf'
  594 |             Sprintf(fullbuf, "%s%s%s", firstmatch,
      |             ^~~~~~~

dungeon.c: In function 'print_dungeon':
dungeon.c:2172:27: warning: '%s' directive writing up to 1407 bytes into a region of size 256 [-Wformat-overflow=]
 2172 |             Sprintf(buf, "%s: %s %d", dptr->dname, descr, dptr->depth_start);
      |                           ^~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from dungeon.c:6:
../include/global.h:274:24: note: 'sprintf' output between 10 and 1427 bytes into a destination of size 256
  274 | #define Sprintf (void) sprintf
dungeon.c:2172:13: note: in expansion of macro 'Sprintf'
 2172 |             Sprintf(buf, "%s: %s %d", dptr->dname, descr, dptr->depth_start);
      |             ^~~~~~~
dungeon.c:2169:27: warning: '%s' directive writing up to 1407 bytes into a region of size 256 [-Wformat-overflow=]
 2169 |             Sprintf(buf, "%s: %s %d to %d", dptr->dname, makeplural(descr),
      |                           ^~
dungeon.c:2169:26: note: directive argument in the range [-2147483647, 2147483646]
 2169 |             Sprintf(buf, "%s: %s %d to %d", dptr->dname, makeplural(descr),
      |                          ^~~~~~~~~~~~~~~~~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from dungeon.c:6:
../include/global.h:274:24: note: 'sprintf' output 10 or more bytes (assuming 1427) into a destination of size 256
  274 | #define Sprintf (void) sprintf
dungeon.c:2169:13: note: in expansion of macro 'Sprintf'
 2169 |             Sprintf(buf, "%s: %s %d to %d", dptr->dname, makeplural(descr),
      |             ^~~~~~~
dungeon.c: In function 'print_mapseen':
dungeon.c:3185:33: warning: '%s' directive writing up to 255 bytes into a region of size 249 [-Wformat-overflow=]
 3185 |         Sprintf(outbuf, " (play %s to open or close drawbridge)", tmp);
      |                                 ^~                                ~~~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from dungeon.c:6:
../include/global.h:274:24: note: 'sprintf' output between 37 and 292 bytes into a destination of size 256
  274 | #define Sprintf (void) sprintf
dungeon.c:3185:9: note: in expansion of macro 'Sprintf'
 3185 |         Sprintf(outbuf, " (play %s to open or close drawbridge)", tmp);
      |         ^~~~~~~
dungeon.c:3350:35: warning: '%s' directive writing up to 255 bytes into a region of size 240 [-Wformat-overflow=]
 3350 |         Sprintf(buf, "%sThe castle%s.", PREFIX, tunesuffix(mptr, tmpbuf));
      |                                   ^~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from dungeon.c:6:
../include/global.h:274:24: note: 'sprintf' output between 18 and 273 bytes into a destination of size 256
  274 | #define Sprintf (void) sprintf
dungeon.c:3350:9: note: in expansion of macro 'Sprintf'
 3350 |         Sprintf(buf, "%sThe castle%s.", PREFIX, tunesuffix(mptr, tmpbuf));
      |         ^~~~~~~

explode.c:541:69: warning: '%s' directive writing up to 255 bytes into a region of size 236 [-Wformat-overflow=]
  541 |                     Sprintf(g.killer.name, "caught %sself in %s own %s", uhim(),
      |                                                                     ^~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from explode.c:5:
../include/global.h:274:24: note: 'sprintf' output 21 or more bytes (assuming 276) into a destination of size 256
  274 | #define Sprintf (void) sprintf
explode.c:541:21: note: in expansion of macro 'Sprintf'
  541 |                     Sprintf(g.killer.name, "caught %sself in %s own %s", uhim(),
      |                     ^~~~~~~

hacklib.c: In function 'yyyymmddhhmmss':
hacklib.c:1034:28: warning: '%02d' directive writing between 2 and 11 bytes into a region of size between 4 and 11 [-Wformat-overflow=]
 1034 |     Sprintf(datestr, "%04ld%02d%02d%02d%02d%02d", datenum, lt->tm_mon + 1,
      |                            ^~~~
hacklib.c:1034:22: note: directive argument in the range [-2147483647, 2147483647]
 1034 |     Sprintf(datestr, "%04ld%02d%02d%02d%02d%02d", datenum, lt->tm_mon + 1,
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../include/config.h:631,
                 from ../include/hack.h:10,
                 from hacklib.c:7:
../include/global.h:274:24: note: 'sprintf' output between 15 and 67 bytes into a destination of size 15
  274 | #define Sprintf (void) sprintf
hacklib.c:1034:5: note: in expansion of macro 'Sprintf'
 1034 |     Sprintf(datestr, "%04ld%02d%02d%02d%02d%02d", datenum, lt->tm_mon + 1,
      |     ^~~~~~~
This commit is contained in:
nhmall
2021-02-01 16:36:17 -05:00
parent a0116e8734
commit 9566752c08
5 changed files with 19 additions and 13 deletions

View File

@@ -538,8 +538,9 @@ explode(int x, int y,
g.killer.format = KILLED_BY_AN;
} else if (type >= 0 && olet != SCROLL_CLASS) {
g.killer.format = NO_KILLER_PREFIX;
Sprintf(g.killer.name, "caught %sself in %s own %s", uhim(),
uhis(), str);
Snprintf(g.killer.name, sizeof g.killer.name,
"caught %sself in %s own %s", uhim(),
uhis(), str);
} else {
g.killer.format = (!strcmpi(str, "tower of flame")
|| !strcmpi(str, "fireball"))