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67 lines
1.6 KiB
Plaintext
67 lines
1.6 KiB
Plaintext
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*** getnameinfo.c.orig Mon Jan 10 22:56:13 2000
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--- getnameinfo.c Mon Jan 10 22:56:13 2000
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***************
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*** 0 ****
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--- 1,61 ----
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+ /*
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+ * fake library for ssh
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+ *
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+ * This file includes getnameinfo().
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+ * These funtions are defined in rfc2133.
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+ *
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+ * But these functions are not implemented correctly. The minimum subset
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+ * is implemented for ssh use only. For exapmle, this routine assumes
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+ * that ai_family is AF_INET. Don't use it for another purpose.
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+ *
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+ * In the case not using 'configure --enable-ipv6', this getnameinfo.c
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+ * will be used if you have broken getnameinfo or no getnameinfo.
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+ */
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+
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+ #include "includes.h"
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+ #include "ssh.h"
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+
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+ #include "gai.h"
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+
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+ int
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+ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
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+ const struct sockaddr *sa;
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+ size_t salen;
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+ char *host;
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+ size_t hostlen;
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+ char *serv;
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+ size_t servlen;
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+ int flags;
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+ {
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+ struct sockaddr_in *sin = (struct sockaddr_in *)sa;
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+ struct hostent *hp;
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+ char tmpserv[16];
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+
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+ if (serv) {
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+ sprintf(tmpserv, "%d", ntohs(sin->sin_port));
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+ if (strlen(tmpserv) > servlen)
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+ return EAI_MEMORY;
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+ else
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+ strcpy(serv, tmpserv);
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+ }
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+ if (host)
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+ if (flags & NI_NUMERICHOST)
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+ if (strlen(inet_ntoa(sin->sin_addr)) > hostlen)
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+ return EAI_MEMORY;
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+ else {
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+ strcpy(host, inet_ntoa(sin->sin_addr));
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+ return 0;
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+ }
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+ else
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+ if (hp = gethostbyaddr((char *)&sin->sin_addr, sizeof(struct in_addr),
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+ AF_INET))
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+ if (strlen(hp->h_name) > hostlen)
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+ return EAI_MEMORY;
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+ else {
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+ strcpy(host, hp->h_name);
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+ return 0;
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+ }
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+ else
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+ return EAI_NODATA;
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+ return 0;
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+ }
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