source: asp3_tinet_ecnl_arm/trunk/musl-1.1.18/src/network/proto.c@ 352

#include <netdb.h>
#include <string.h>

/* do we really need all these?? */

static int idx;
static const unsigned char protos[] = {
        "\000ip\0"
        "\001icmp\0"
        "\002igmp\0"
        "\003ggp\0"
        "\004ipencap\0"
        "\005st\0"
        "\006tcp\0"
        "\010egp\0"
        "\014pup\0"
        "\021udp\0"
        "\024hmp\0"
        "\026xns-idp\0"
        "\033rdp\0"
        "\035iso-tp4\0"
        "\044xtp\0"
        "\045ddp\0"
        "\046idpr-cmtp\0"
        "\051ipv6\0"
        "\053ipv6-route\0"
        "\054ipv6-frag\0"
        "\055idrp\0"
        "\056rsvp\0"
        "\057gre\0"
        "\062esp\0"
        "\063ah\0"
        "\071skip\0"
        "\072ipv6-icmp\0"
        "\073ipv6-nonxt\0"
        "\074ipv6-opts\0"
        "\111rspf\0"
        "\121vmtp\0"
        "\131ospf\0"
        "\136ipip\0"
        "\142encap\0"
        "\147pim\0"
        "\377raw"
};

void endprotoent(void)
{
        idx = 0;
}

void setprotoent(int stayopen)
{
        idx = 0;
}

struct protoent *getprotoent(void)
{
        static struct protoent p;
        static const char *aliases;
        if (idx >= sizeof protos) return NULL;
        p.p_proto = protos[idx];
        p.p_name = (char *)&protos[idx+1];
        p.p_aliases = (char **)&aliases;
        idx += strlen(p.p_name) + 2;
        return &p;
}

struct protoent *getprotobyname(const char *name)
{
        struct protoent *p;
        endprotoent();
        do p = getprotoent();
        while (p && strcmp(name, p->p_name));
        return p;
}

struct protoent *getprotobynumber(int num)
{
        struct protoent *p;
        endprotoent();
        do p = getprotoent();
        while (p && p->p_proto != num);
        return p;
}