| 128 | /* acl_vstring_space - vbuf callback to reserve space */ |
| 129 | |
| 130 | int acl_vstring_space(ACL_VBUF *bp, ssize_t len) |
| 131 | { |
| 132 | ssize_t need, n = bp->len - (bp->ptr - bp->data); |
| 133 | |
| 134 | if (len < 0) { |
| 135 | acl_msg_panic("%s: bad length %ld", __FUNCTION__, (long) len); |
| 136 | } |
| 137 | if ((need = len - n) > 0) { |
| 138 | return vstring_extend(bp, need); |
| 139 | } |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | void acl_vstring_init(ACL_VSTRING *vp, size_t len) |
| 144 | { |
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