diff options
Diffstat (limited to 'external/libcurl_android/jni/libcurl/lib/hostip4.c')
| -rwxr-xr-x | external/libcurl_android/jni/libcurl/lib/hostip4.c | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/external/libcurl_android/jni/libcurl/lib/hostip4.c b/external/libcurl_android/jni/libcurl/lib/hostip4.c deleted file mode 100755 index 1e39f4a9..00000000 --- a/external/libcurl_android/jni/libcurl/lib/hostip4.c +++ /dev/null @@ -1,310 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2013, 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 - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#ifdef HAVE_NETINET_IN_H -#include <netinet/in.h> -#endif -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif -#ifdef HAVE_ARPA_INET_H -#include <arpa/inet.h> -#endif -#ifdef __VMS -#include <in.h> -#include <inet.h> -#endif - -#ifdef HAVE_PROCESS_H -#include <process.h> -#endif - -#include "urldata.h" -#include "sendf.h" -#include "hostip.h" -#include "hash.h" -#include "share.h" -#include "strerror.h" -#include "url.h" -#include "inet_pton.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -#include "curl_memory.h" -/* The last #include file should be: */ -#include "memdebug.h" - -/*********************************************************************** - * Only for plain-ipv4 builds - **********************************************************************/ -#ifdef CURLRES_IPV4 /* plain ipv4 code coming up */ -/* - * Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've - * been set and returns TRUE if they are OK. - */ -bool Curl_ipvalid(struct connectdata *conn) -{ - if(conn->ip_version == CURL_IPRESOLVE_V6) - /* an ipv6 address was requested and we can't get/use one */ - return FALSE; - - return TRUE; /* OK, proceed */ -} - -#ifdef CURLRES_SYNCH - -/* - * Curl_getaddrinfo() - the ipv4 synchronous version. - * - * 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 - * function. There are _three_ different gethostbyname_r() versions, and we - * detect which one this platform supports in the configure script and set up - * the HAVE_GETHOSTBYNAME_R_3, HAVE_GETHOSTBYNAME_R_5 or - * HAVE_GETHOSTBYNAME_R_6 defines accordingly. Note that HAVE_GETADDRBYNAME - * has the corresponding rules. This is primarily on *nix. Note that some unix - * flavours have thread-safe versions of the plain gethostbyname() etc. - * - */ -Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, - const char *hostname, - int port, - int *waitp) -{ - Curl_addrinfo *ai = NULL; - -#ifdef CURL_DISABLE_VERBOSE_STRINGS - (void)conn; -#endif - - *waitp = 0; /* synchronous response only */ - - ai = Curl_ipv4_resolve_r(hostname, port); - if(!ai) - infof(conn->data, "Curl_ipv4_resolve_r failed for %s\n", hostname); - - return ai; -} -#endif /* CURLRES_SYNCH */ -#endif /* CURLRES_IPV4 */ - -#if defined(CURLRES_IPV4) && !defined(CURLRES_ARES) - -/* - * Curl_ipv4_resolve_r() - ipv4 threadsafe resolver function. - * - * This is used for both synchronous and asynchronous resolver builds, - * implying that only threadsafe code and function calls may be used. - * - */ -Curl_addrinfo *Curl_ipv4_resolve_r(const char *hostname, - int port) -{ -#if !defined(HAVE_GETADDRINFO_THREADSAFE) && defined(HAVE_GETHOSTBYNAME_R_3) - int res; -#endif - Curl_addrinfo *ai = NULL; - struct hostent *h = NULL; - struct in_addr in; - struct hostent *buf = NULL; - - if(Curl_inet_pton(AF_INET, hostname, &in) > 0) - /* This is a dotted IP address 123.123.123.123-style */ - return Curl_ip2addr(AF_INET, &in, hostname, port); - -#if defined(HAVE_GETADDRINFO_THREADSAFE) - else { - struct addrinfo hints; - char sbuf[12]; - char *sbufptr = NULL; - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = PF_INET; - hints.ai_socktype = SOCK_STREAM; - if(port) { - snprintf(sbuf, sizeof(sbuf), "%d", port); - sbufptr = sbuf; - } - - (void)Curl_getaddrinfo_ex(hostname, sbufptr, &hints, &ai); - -#elif defined(HAVE_GETHOSTBYNAME_R) - /* - * gethostbyname_r() is the preferred resolve function for many platforms. - * Since there are three different versions of it, the following code is - * somewhat #ifdef-ridden. - */ - else { - int h_errnop; - - buf = calloc(1, CURL_HOSTENT_SIZE); - if(!buf) - return NULL; /* major failure */ - /* - * The clearing of the buffer is a workaround for a gethostbyname_r bug in - * qnx nto and it is also _required_ for some of these functions on some - * platforms. - */ - -#if defined(HAVE_GETHOSTBYNAME_R_5) - /* Solaris, IRIX and more */ - h = gethostbyname_r(hostname, - (struct hostent *)buf, - (char *)buf + sizeof(struct hostent), - CURL_HOSTENT_SIZE - sizeof(struct hostent), - &h_errnop); - - /* If the buffer is too small, it returns NULL and sets errno to - * ERANGE. The errno is thread safe if this is compiled with - * -D_REENTRANT as then the 'errno' variable is a macro defined to get - * used properly for threads. - */ - - if(h) { - ; - } - else -#elif defined(HAVE_GETHOSTBYNAME_R_6) - /* Linux */ - - (void)gethostbyname_r(hostname, - (struct hostent *)buf, - (char *)buf + sizeof(struct hostent), - CURL_HOSTENT_SIZE - sizeof(struct hostent), - &h, /* DIFFERENCE */ - &h_errnop); - /* Redhat 8, using glibc 2.2.93 changed the behavior. Now all of a - * sudden this function returns EAGAIN if the given buffer size is too - * small. Previous versions are known to return ERANGE for the same - * problem. - * - * This wouldn't be such a big problem if older versions wouldn't - * sometimes return EAGAIN on a common failure case. Alas, we can't - * assume that EAGAIN *or* ERANGE means ERANGE for any given version of - * glibc. - * - * For now, we do that and thus we may call the function repeatedly and - * fail for older glibc versions that return EAGAIN, until we run out of - * buffer size (step_size grows beyond CURL_HOSTENT_SIZE). - * - * If anyone has a better fix, please tell us! - * - * ------------------------------------------------------------------- - * - * On October 23rd 2003, Dan C dug up more details on the mysteries of - * gethostbyname_r() in glibc: - * - * In glibc 2.2.5 the interface is different (this has also been - * discovered in glibc 2.1.1-6 as shipped by Redhat 6). What I can't - * explain, is that tests performed on glibc 2.2.4-34 and 2.2.4-32 - * (shipped/upgraded by Redhat 7.2) don't show this behavior! - * - * In this "buggy" version, the return code is -1 on error and 'errno' - * is set to the ERANGE or EAGAIN code. Note that 'errno' is not a - * thread-safe variable. - */ - - if(!h) /* failure */ -#elif defined(HAVE_GETHOSTBYNAME_R_3) - /* AIX, Digital Unix/Tru64, HPUX 10, more? */ - - /* For AIX 4.3 or later, we don't use gethostbyname_r() at all, because of - * the plain fact that it does not return unique full buffers on each - * call, but instead several of the pointers in the hostent structs will - * point to the same actual data! This have the unfortunate down-side that - * our caching system breaks down horribly. Luckily for us though, AIX 4.3 - * and more recent versions have a "completely thread-safe"[*] libc where - * all the data is stored in thread-specific memory areas making calls to - * the plain old gethostbyname() work fine even for multi-threaded - * programs. - * - * This AIX 4.3 or later detection is all made in the configure script. - * - * Troels Walsted Hansen helped us work this out on March 3rd, 2003. - * - * [*] = much later we've found out that it isn't at all "completely - * thread-safe", but at least the gethostbyname() function is. - */ - - if(CURL_HOSTENT_SIZE >= - (sizeof(struct hostent)+sizeof(struct hostent_data))) { - - /* August 22nd, 2000: Albert Chin-A-Young brought an updated version - * that should work! September 20: Richard Prescott worked on the buffer - * size dilemma. - */ - - res = gethostbyname_r(hostname, - (struct hostent *)buf, - (struct hostent_data *)((char *)buf + - sizeof(struct hostent))); - h_errnop = SOCKERRNO; /* we don't deal with this, but set it anyway */ - } - else - res = -1; /* failure, too smallish buffer size */ - - if(!res) { /* success */ - - h = buf; /* result expected in h */ - - /* This is the worst kind of the different gethostbyname_r() interfaces. - * Since we don't know how big buffer this particular lookup required, - * we can't realloc down the huge alloc without doing closer analysis of - * the returned data. Thus, we always use CURL_HOSTENT_SIZE for every - * name lookup. Fixing this would require an extra malloc() and then - * calling Curl_addrinfo_copy() that subsequent realloc()s down the new - * memory area to the actually used amount. - */ - } - else -#endif /* HAVE_...BYNAME_R_5 || HAVE_...BYNAME_R_6 || HAVE_...BYNAME_R_3 */ - { - h = NULL; /* set return code to NULL */ - free(buf); - } -#else /* HAVE_GETADDRINFO_THREADSAFE || HAVE_GETHOSTBYNAME_R */ - /* - * Here is code for platforms that don't have a thread safe - * getaddrinfo() nor gethostbyname_r() function or for which - * gethostbyname() is the preferred one. - */ - else { - h = gethostbyname((void*)hostname); -#endif /* HAVE_GETADDRINFO_THREADSAFE || HAVE_GETHOSTBYNAME_R */ - } - - if(h) { - ai = Curl_he2ai(h, port); - - if(buf) /* used a *_r() function */ - free(buf); - } - - return ai; -} -#endif /* defined(CURLRES_IPV4) && !defined(CURLRES_ARES) */ |