diff options
Diffstat (limited to 'slirp/mbuf.c')
| -rw-r--r-- | slirp/mbuf.c | 39 |
1 files changed, 18 insertions, 21 deletions
diff --git a/slirp/mbuf.c b/slirp/mbuf.c index 5ff24559fd..0c189e1a7b 100644 --- a/slirp/mbuf.c +++ b/slirp/mbuf.c @@ -138,7 +138,7 @@ m_cat(struct mbuf *m, struct mbuf *n) * If there's no room, realloc */ if (M_FREEROOM(m) < n->m_len) - m_inc(m,m->m_size+MINCSIZE); + m_inc(m, m->m_len + n->m_len); memcpy(m->m_data+m->m_len, n->m_data, n->m_len); m->m_len += n->m_len; @@ -147,32 +147,29 @@ m_cat(struct mbuf *m, struct mbuf *n) } -/* make m size bytes large */ +/* make m 'size' bytes large from m_data */ void m_inc(struct mbuf *m, int size) { - int datasize; + int datasize; - /* some compiles throw up on gotos. This one we can fake. */ - if(m->m_size>size) return; - - if (m->m_flags & M_EXT) { - datasize = m->m_data - m->m_ext; - m->m_ext = g_realloc(m->m_ext, size); - m->m_data = m->m_ext + datasize; - } else { - char *dat; - datasize = m->m_data - m->m_dat; - dat = g_malloc(size); - memcpy(dat, m->m_dat, m->m_size); - - m->m_ext = dat; - m->m_data = m->m_ext + datasize; - m->m_flags |= M_EXT; - } + /* some compilers throw up on gotos. This one we can fake. */ + if (m->m_size > size) { + return; + } - m->m_size = size; + if (m->m_flags & M_EXT) { + datasize = m->m_data - m->m_ext; + m->m_ext = g_realloc(m->m_ext, size + datasize); + } else { + datasize = m->m_data - m->m_dat; + m->m_ext = g_malloc(size + datasize); + memcpy(m->m_ext, m->m_dat, m->m_size); + m->m_flags |= M_EXT; + } + m->m_data = m->m_ext + datasize; + m->m_size = size + datasize; } |