diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/torture/pr53703.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/torture/pr53703.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr53703.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr53703.c new file mode 100644 index 000000000..c9e10abf5 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr53703.c @@ -0,0 +1,149 @@ +/* Reduced test case from PR53703. Used to ICE. */ + +/* { dg-do compile } */ +/* { dg-options "-w" } */ + +typedef long unsigned int size_t; +typedef unsigned short int sa_family_t; +struct sockaddr {}; +typedef unsigned char __u8; +typedef unsigned short __u16; +typedef unsigned int __u32; +struct nlmsghdr { + __u32 nlmsg_len; + __u16 nlmsg_type; +}; +struct ifaddrmsg { + __u8 ifa_family; +}; +enum { + IFA_ADDRESS, + IFA_LOCAL, +}; +enum { + RTM_NEWLINK = 16, + RTM_NEWADDR = 20, +}; +struct rtattr { + unsigned short rta_len; + unsigned short rta_type; +}; +struct ifaddrs { + struct ifaddrs *ifa_next; + unsigned short ifa_flags; +}; +typedef unsigned short int uint16_t; +typedef unsigned int uint32_t; +struct nlmsg_list { + struct nlmsg_list *nlm_next; + int size; +}; +struct rtmaddr_ifamap { + void *address; + void *local; + int address_len; + int local_len; +}; +int usagi_getifaddrs (struct ifaddrs **ifap) +{ + struct nlmsg_list *nlmsg_list, *nlmsg_end, *nlm; + size_t dlen, xlen, nlen; + int build; + for (build = 0; build <= 1; build++) + { + struct ifaddrs *ifl = ((void *)0), *ifa = ((void *)0); + struct nlmsghdr *nlh, *nlh0; + uint16_t *ifflist = ((void *)0); + struct rtmaddr_ifamap ifamap; + for (nlm = nlmsg_list; nlm; nlm = nlm->nlm_next) + { + int nlmlen = nlm->size; + for (nlh = nlh0; + ((nlmlen) >= (int)sizeof(struct nlmsghdr) + && (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) + && (nlh)->nlmsg_len <= (nlmlen)); + nlh = ((nlmlen) -= ( (((nlh)->nlmsg_len)+4U -1) & ~(4U -1) ), + (struct nlmsghdr*)(((char*)(nlh)) + + ( (((nlh)->nlmsg_len)+4U -1) + & ~(4U -1) )))) + { + struct ifinfomsg *ifim = ((void *)0); + struct ifaddrmsg *ifam = ((void *)0); + struct rtattr *rta; + sa_family_t nlm_family = 0; + uint32_t nlm_scope = 0, nlm_index = 0; + memset (&ifamap, 0, sizeof (ifamap)); + switch (nlh->nlmsg_type) + { + case RTM_NEWLINK: + ifim = (struct ifinfomsg *) + ((void*)(((char*)nlh) + + ((0)+( ((((int) + ( ((sizeof(struct nlmsghdr))+4U -1) + & ~(4U -1) )))+4U -1) + & ~(4U -1) )))); + case RTM_NEWADDR: + ifam = (struct ifaddrmsg *) + ((void*)(((char*)nlh) + + ((0)+( ((((int) + ( ((sizeof(struct nlmsghdr))+4U -1) + & ~(4U -1) )))+4U -1) + & ~(4U -1) )))); + nlm_family = ifam->ifa_family; + if (build) + ifa->ifa_flags = ifflist[nlm_index]; + break; + default: + continue; + } + if (!build) + { + void *rtadata = ((void*)(((char*)(rta)) + + (( ((sizeof(struct rtattr))+4 -1) + & ~(4 -1) ) + (0)))); + size_t rtapayload = ((int)((rta)->rta_len) + - (( ((sizeof(struct rtattr))+4 -1) + & ~(4 -1) ) + (0))); + switch (nlh->nlmsg_type) + { + case RTM_NEWLINK: + break; + case RTM_NEWADDR: + if (nlm_family == 17) + break; + switch (rta->rta_type) + { + case IFA_ADDRESS: + ifamap.address = rtadata; + ifamap.address_len = rtapayload; + case IFA_LOCAL: + ifamap.local = rtadata; + } + } + } + if (nlh->nlmsg_type == RTM_NEWADDR && nlm_family != 17) + { + if (!ifamap.local) + { + ifamap.local = ifamap.address; + ifamap.local_len = ifamap.address_len; + } + if (!ifamap.address) + { + ifamap.address = ifamap.local; + } + if (ifamap.address_len != ifamap.local_len + || (ifamap.address != ((void *)0) + && memcmp (ifamap.address, ifamap.local, + ifamap.address_len))) + { + if (!build) + dlen += (((ifa_sa_len (nlm_family, + ifamap.address_len))+4U -1) + & ~(4U -1) ); + } + } + } + } + } +} |