X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=support%2Fexport%2Fclient.c;h=9259180dd1d618f4a36196becade0751769df821;hp=eafc2bfa6d79f3f5a532d23717a9a2df5c666a91;hb=9bb85c5e8d2285f82367c75df5530a71a9a5a5f2;hpb=0a8bd742cc1412e2553f152ee0c3aab8c5570212 diff --git a/support/export/client.c b/support/export/client.c index eafc2bf..9259180 100644 --- a/support/export/client.c +++ b/support/export/client.c @@ -30,8 +30,6 @@ extern int innetgr(char *netgr, char *host, char *, char *); #endif static char *add_name(char *old, const char *add); -static int client_init(nfs_client *clp, const char *hname, - struct hostent *hp); nfs_client *clientlist[MCL_MAXTYPES] = { NULL, }; @@ -59,6 +57,62 @@ client_free(nfs_client *clp) free(clp); } +static int +init_netmask(nfs_client *clp, const char *slash) +{ + if (strchr(slash + 1, '.') != NULL) + clp->m_addrlist[1].s_addr = inet_addr(slash + 1); + else { + int prefixlen = atoi(slash + 1); + if (0 < prefixlen && prefixlen <= 32) + clp->m_addrlist[1].s_addr = + htonl((uint32_t)~0 << (32 - prefixlen)); + else + goto out_badprefix; + } + + return 1; + +out_badprefix: + xlog(L_ERROR, "Invalid prefix `%s' for %s", slash + 1, clp->m_hostname); + return 0; +} + +static int +init_subnetwork(nfs_client *clp) +{ + static char slash32[] = "/32"; + char *cp; + + cp = strchr(clp->m_hostname, '/'); + if (cp == NULL) + cp = slash32; + + *cp = '\0'; + clp->m_addrlist[0].s_addr = inet_addr(clp->m_hostname); + *cp = '/'; + + return init_netmask(clp, cp); +} + +static int +client_init(nfs_client *clp, const char *hname, const struct hostent *hp) +{ + clp->m_hostname = strdup(hname); + if (clp->m_hostname == NULL) + return 0; + + clp->m_exported = 0; + clp->m_count = 0; + clp->m_naddr = 0; + + if (clp->m_type == MCL_SUBNETWORK) + return init_subnetwork(clp); + + init_addrlist(clp, hp); + return 1; +} + /* if canonical is set, then we *know* this is already a canonical name * so hostname lookup is avoided. * This is used when reading /proc/fs/nfs/exports @@ -154,47 +208,6 @@ client_dup(nfs_client *clp, struct hostent *hp) return new; } -static int -client_init(nfs_client *clp, const char *hname, struct hostent *hp) -{ - clp->m_hostname = strdup(hname); - if (clp->m_hostname == NULL) - return 0; - - clp->m_exported = 0; - clp->m_count = 0; - clp->m_naddr = 0; - - if (clp->m_type == MCL_SUBNETWORK) { - char *cp = strchr(clp->m_hostname, '/'); - static char slash32[] = "/32"; - - if(!cp) cp = slash32; - *cp = '\0'; - clp->m_addrlist[0].s_addr = inet_addr(clp->m_hostname); - if (strchr(cp + 1, '.')) { - clp->m_addrlist[1].s_addr = inet_addr(cp+1); - } - else { - int netmask = atoi(cp + 1); - if (0 < netmask && netmask <= 32) { - clp->m_addrlist[1].s_addr = - htonl ((uint32_t) ~0 << (32 - netmask)); - } - else { - xlog(L_ERROR, "invalid netmask `%s' for %s", - cp + 1, clp->m_hostname); - return 0; - } - } - *cp = '/'; - return 1; - } - - init_addrlist(clp, hp); - return 1; -} - void client_add(nfs_client *clp) {