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Add more overflow checks in case of fseek()

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ache 2001-08-17 10:22:03 +00:00
parent 555ada99b6
commit 28f5a91209
1 changed files with 8 additions and 0 deletions
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8
lib/libc/stdio/fseek.c
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@ -155,6 +155,10 @@ _fseeko(fp, offset, whence, ltest)
errno = EINVAL;
return (EOF);
}
if (ltest && offset > LONG_MAX) {
errno = EOVERFLOW;
return (EOF);
}
whence = SEEK_SET;
havepos = 1;
break;
@ -219,6 +223,10 @@ _fseeko(fp, offset, whence, ltest)
errno = EINVAL;
return (EOF);
}
if (ltest && (off_t)target > LONG_MAX) {
errno = EOVERFLOW;
return (EOF);
}
}
if (!havepos) {