diff options
Diffstat (limited to 'util.c')
-rw-r--r-- | util.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -270,6 +270,7 @@ ruby_add_suffix(VALUE str, const char *suffix) char *s, *t, *p; long slen; char buf[1024]; + char *const bufend = buf + sizeof(buf); if (RSTRING_LEN(str) > 1000) rb_fatal("Cannot do inplace edit on long filename (%ld characters)", @@ -300,7 +301,7 @@ ruby_add_suffix(VALUE str, const char *suffix) if (*suffix == '.') { /* Style 1 */ if (strEQ(ext, suffix)) goto fallback; - strcpy(p, suffix); + strlcpy(p, suffix, bufend - p); } else if (suffix[1] == '\0') { /* Style 2 */ if (extlen < 4) { @@ -317,7 +318,7 @@ ruby_add_suffix(VALUE str, const char *suffix) buf[7] = *suffix; } else goto fallback; - strcpy(p, ext); + strlcpy(p, ext, bufend - p); } else { /* Style 3: Panic */ fallback: |