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27f615bebc
NOTE: it is important that this fix gets into 4.9.3 re: Issue https://github.com/Unidata/netcdf-c/issues/2798 ## Modifications * This PR includes PR https://github.com/Unidata/netcdf-c/pull/2813 * Support the following AWS environment variables in the internal S3 library (they are already supported by aws-sdk-cpp). - AWS_REGION - AWS_DEFAULT_REGION - AWS_ACCESS_KEY_ID - AWS_CONFIG_FILE - AWS_PROFILE - AWS_SECRET_ACCESS_KEY - (source https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html). * Support an empty region when specifying s3.amazonaws.com as the host. * Move some S3/AWS related functions to ds3util.c * Add a test case to test empty region and AWS_[DEFAULT]_REGION.
146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/*
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Copyright (c) 1998-2018 University Corporation for Atmospheric Research/Unidata
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See LICENSE.txt for license information.
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*/
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#include "config.h"
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#include "ncdispatch.h"
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#include "ncuri.h"
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#include "nclog.h"
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#include "ncbytes.h"
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#include "ncrc.h"
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#include "ncoffsets.h"
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#include "ncpathmgr.h"
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#include "ncxml.h"
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#include "nc4internal.h"
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/* Required for getcwd, other functions. */
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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/* Required for getcwd, other functions. */
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#ifdef _WIN32
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#include <direct.h>
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#endif
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#if defined(ENABLE_BYTERANGE) || defined(ENABLE_DAP) || defined(ENABLE_DAP4)
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#include <curl/curl.h>
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#endif
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#ifdef ENABLE_S3
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#include "ncs3sdk.h"
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#endif
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#define MAXPATH 1024
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/* Define vectors of zeros and ones for use with various nc_get_varX functions */
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/* Note, this form of initialization fails under Cygwin */
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size_t NC_coord_zero[NC_MAX_VAR_DIMS] = {0};
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size_t NC_coord_one[NC_MAX_VAR_DIMS] = {1};
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ptrdiff_t NC_stride_one[NC_MAX_VAR_DIMS] = {1};
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/*
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static nc_type longtype = (sizeof(long) == sizeof(int)?NC_INT:NC_INT64);
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static nc_type ulongtype = (sizeof(unsigned long) == sizeof(unsigned int)?NC_UINT:NC_UINT64);
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*/
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/* Allow dispatch to do general initialization and finalization */
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int
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NCDISPATCH_initialize(void)
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{
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int status = NC_NOERR;
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int i;
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NCglobalstate* globalstate = NULL;
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for(i=0;i<NC_MAX_VAR_DIMS;i++) {
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NC_coord_zero[i] = 0;
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NC_coord_one[i] = 1;
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NC_stride_one[i] = 1;
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}
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globalstate = NC_getglobalstate(); /* will allocate and clear */
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/* Capture temp dir*/
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{
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char* tempdir = NULL;
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#if defined _WIN32 || defined __MSYS__ || defined __CYGWIN__
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tempdir = getenv("TEMP");
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#else
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tempdir = "/tmp";
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#endif
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if(tempdir == NULL) {
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fprintf(stderr,"Cannot find a temp dir; using ./\n");
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tempdir = ".";
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}
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globalstate->tempdir= strdup(tempdir);
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}
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/* Capture $HOME */
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{
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#if defined(_WIN32) && !defined(__MINGW32__)
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char* home = getenv("USERPROFILE");
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#else
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char* home = getenv("HOME");
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#endif
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if(home == NULL) {
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/* use cwd */
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home = malloc(MAXPATH+1);
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NCgetcwd(home,MAXPATH);
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} else
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home = strdup(home); /* make it always free'able */
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assert(home != NULL);
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NCpathcanonical(home,&globalstate->home);
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nullfree(home);
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}
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/* Capture $CWD */
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{
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char cwdbuf[4096];
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cwdbuf[0] = '\0';
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(void)NCgetcwd(cwdbuf,sizeof(cwdbuf));
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if(strlen(cwdbuf) == 0) {
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/* use tempdir */
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strcpy(cwdbuf, globalstate->tempdir);
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}
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globalstate->cwd = strdup(cwdbuf);
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}
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ncloginit();
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/* Now load RC Files */
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ncrc_initialize();
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/* Compute type alignments */
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NC_compute_alignments();
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#if defined(ENABLE_BYTERANGE) || defined(ENABLE_DAP) || defined(ENABLE_DAP4)
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/* Initialize curl if it is being used */
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{
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CURLcode cstat = curl_global_init(CURL_GLOBAL_ALL);
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if(cstat != CURLE_OK)
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status = NC_ECURL;
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}
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#endif
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return status;
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}
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int
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NCDISPATCH_finalize(void)
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{
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int status = NC_NOERR;
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#if defined(ENABLE_BYTERANGE) || defined(ENABLE_DAP) || defined(ENABLE_DAP4)
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curl_global_cleanup();
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#endif
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#if defined(ENABLE_DAP4)
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ncxml_finalize();
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#endif
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NC_freeglobalstate(); /* should be one of the last things done */
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return status;
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}
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