diff options
Diffstat (limited to 'Utilities/cmcurl/hostip4.c')
| -rw-r--r-- | Utilities/cmcurl/hostip4.c | 173 |
1 files changed, 53 insertions, 120 deletions
diff --git a/Utilities/cmcurl/hostip4.c b/Utilities/cmcurl/hostip4.c index 1b4c3c1..877baa2 100644 --- a/Utilities/cmcurl/hostip4.c +++ b/Utilities/cmcurl/hostip4.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -26,11 +26,9 @@ #include <string.h> #include <errno.h> -#define _REENTRANT - -#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__) +#ifdef NEED_MALLOC_H #include <malloc.h> -#else +#endif #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif @@ -57,21 +55,15 @@ #include <inet.h> #include <stdlib.h> #endif -#endif #ifdef HAVE_SETJMP_H #include <setjmp.h> #endif -#ifdef WIN32 +#ifdef HAVE_PROCESS_H #include <process.h> #endif -#if (defined(NETWARE) && defined(__NOVELL_LIBC__)) -#undef in_addr_t -#define in_addr_t unsigned long -#endif - #include "urldata.h" #include "sendf.h" #include "hostip.h" @@ -79,6 +71,7 @@ #include "share.h" #include "strerror.h" #include "url.h" +#include "inet_pton.h" #define _MPRINTF_REPLACE /* use our functions only */ #include <curl/mprintf.h> @@ -87,7 +80,7 @@ #include "inet_ntoa_r.h" #endif -#include "curl_memory.h" +#include "memory.h" /* The last #include file should be: */ #include "memdebug.h" @@ -95,23 +88,6 @@ * Only for plain-ipv4 builds **********************************************************************/ #ifdef CURLRES_IPV4 /* plain ipv4 code coming up */ - -/* - * This is a function for freeing name information in a protocol independent - * way. - */ -void Curl_freeaddrinfo(Curl_addrinfo *ai) -{ - Curl_addrinfo *next; - - /* walk over the list and free all entries */ - while(ai) { - next = ai->ai_next; - free(ai); - ai = next; - } -} - /* * Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've * been set and returns TRUE if they are OK. @@ -125,57 +101,13 @@ bool Curl_ipvalid(struct SessionHandle *data) return TRUE; /* OK, proceed */ } -struct namebuf { - struct hostent hostentry; - char *h_addr_list[2]; - struct in_addr addrentry; - char h_name[16]; /* 123.123.123.123 = 15 letters is maximum */ -}; - -/* - * Curl_ip2addr() takes a 32bit ipv4 internet address as input parameter - * together with a pointer to the string version of the address, and it - * returns a Curl_addrinfo chain filled in correctly with information for this - * address/host. - * - * The input parameters ARE NOT checked for validity but they are expected - * to have been checked already when this is called. - */ -Curl_addrinfo *Curl_ip2addr(in_addr_t num, char *hostname, int port) -{ - Curl_addrinfo *ai; - struct hostent *h; - struct in_addr *addrentry; - struct namebuf buffer; - struct namebuf *buf = &buffer; - - h = &buf->hostentry; - h->h_addr_list = &buf->h_addr_list[0]; - addrentry = &buf->addrentry; - addrentry->s_addr = num; - h->h_addr_list[0] = (char*)addrentry; - h->h_addr_list[1] = NULL; - h->h_addrtype = AF_INET; - h->h_length = sizeof(*addrentry); - h->h_name = &buf->h_name[0]; - h->h_aliases = NULL; - - /* Now store the dotted version of the address */ - snprintf((char*)(h->h_name), 16, "%s", hostname); - - ai = Curl_he2ai(h, port); - - return ai; -} - #ifdef CURLRES_SYNCH /* the functions below are for synchronous resolves */ /* * Curl_getaddrinfo() - the ipv4 synchronous version. * - * The original code to this function was once stolen from the Dancer source - * code, written by Bjorn Reese, it has since been patched and modified - * considerably. + * The original code to this function was from the Dancer source code, written + * by Bjorn Reese, it has since been patched and modified considerably. * * gethostbyname_r() is the thread-safe version of the gethostbyname() * function. When we build for plain IPv4, we attempt to use this @@ -188,7 +120,7 @@ Curl_addrinfo *Curl_ip2addr(in_addr_t num, char *hostname, int port) * */ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, - char *hostname, + const char *hostname, int port, int *waitp) { @@ -202,11 +134,9 @@ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, *waitp = 0; /* don't wait, we act synchronously */ - in=inet_addr(hostname); - if (in != CURL_INADDR_NONE) { + if(1 == Curl_inet_pton(AF_INET, hostname, &in)) /* This is a dotted IP address 123.123.123.123-style */ return Curl_ip2addr(in, hostname, port); - } #if defined(HAVE_GETHOSTBYNAME_R) /* @@ -370,55 +300,55 @@ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, } #endif /* CURLRES_SYNCH */ +#endif /* CURLRES_IPV4 */ /* * Curl_he2ai() translates from a hostent struct to a Curl_addrinfo struct. * The Curl_addrinfo is meant to work like the addrinfo struct does for IPv6 * stacks, but for all hosts and environments. + * + * Curl_addrinfo defined in "lib/hostip.h" + * + * struct Curl_addrinfo { + * int ai_flags; + * int ai_family; + * int ai_socktype; + * int ai_protocol; + * socklen_t ai_addrlen; * Follow rfc3493 struct addrinfo * + * char *ai_canonname; + * struct sockaddr *ai_addr; + * struct Curl_addrinfo *ai_next; + * }; + * + * hostent defined in <netdb.h> + * + * struct hostent { + * char *h_name; + * char **h_aliases; + * int h_addrtype; + * int h_length; + * char **h_addr_list; + * }; + * + * for backward compatibility: + * + * #define h_addr h_addr_list[0] + */ -struct Curl_addrinfo { - int ai_flags; - int ai_family; - int ai_socktype; - int ai_protocol; - size_t ai_addrlen; - struct sockaddr *ai_addr; - char *ai_canonname; - struct addrinfo *ai_next; -}; - -struct hostent { - char *h_name; * official name of host * - char **h_aliases; * alias list * - int h_addrtype; * host address type * - int h_length; * length of address * - char **h_addr_list; * list of addresses * -} -#define h_addr h_addr_list[0] * for backward compatibility * - -*/ - -Curl_addrinfo *Curl_he2ai(struct hostent *he, int port) +Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port) { Curl_addrinfo *ai; Curl_addrinfo *prevai = NULL; Curl_addrinfo *firstai = NULL; + struct sockaddr_in *addr; int i; - - union { - struct in_addr *addr; - char* list; - } curr; - union { - struct sockaddr_in* addr_in; - struct sockaddr* addr; - } address; + struct in_addr *curr; if(!he) /* no input == no output! */ return NULL; - for(i=0; (curr.list = he->h_addr_list[i]); i++) { + for(i=0; (curr = (struct in_addr *)he->h_addr_list[i]) != NULL; i++) { ai = calloc(1, sizeof(Curl_addrinfo) + sizeof(struct sockaddr_in)); @@ -434,23 +364,26 @@ Curl_addrinfo *Curl_he2ai(struct hostent *he, int port) prevai->ai_next = ai; ai->ai_family = AF_INET; /* we only support this */ - ai->ai_socktype = SOCK_STREAM; /* we only support this */ + + /* we return all names as STREAM, so when using this address for TFTP + the type must be ignored and conn->socktype be used instead! */ + ai->ai_socktype = SOCK_STREAM; + ai->ai_addrlen = sizeof(struct sockaddr_in); /* make the ai_addr point to the address immediately following this struct and use that area to store the address */ - ai->ai_addr = (struct sockaddr *) (ai + 1); + ai->ai_addr = (struct sockaddr *) ((char*)ai + sizeof(Curl_addrinfo)); /* leave the rest of the struct filled with zero */ - address.addr = ai->ai_addr; /* storage area for this info */ + addr = (struct sockaddr_in *)ai->ai_addr; /* storage area for this info */ - memcpy((char *)&(address.addr_in->sin_addr), curr.addr, sizeof(struct in_addr)); - address.addr_in->sin_family = he->h_addrtype; - address.addr_in->sin_port = htons((unsigned short)port); + memcpy((char *)&(addr->sin_addr), curr, sizeof(struct in_addr)); + addr->sin_family = he->h_addrtype; + addr->sin_port = htons((unsigned short)port); prevai = ai; } return firstai; } -#endif /* CURLRES_IPV4 */ |