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Diffstat (limited to 'libcurl/src/lib/netrc.c')
-rw-r--r--libcurl/src/lib/netrc.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/libcurl/src/lib/netrc.c b/libcurl/src/lib/netrc.c
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2015, 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_PWD_H
+#include <pwd.h>
+#endif
+
+#include <curl/curl.h>
+#include "netrc.h"
+
+#include "strequal.h"
+#include "strtok.h"
+#include "rawstr.h"
+#include "curl_printf.h"
+
+/* The last #include files should be: */
+#include "curl_memory.h"
+#include "memdebug.h"
+
+/* Get user and password from .netrc when given a machine name */
+
+enum host_lookup_state {
+ NOTHING,
+ HOSTFOUND, /* the 'machine' keyword was found */
+ HOSTVALID /* this is "our" machine! */
+};
+
+/*
+ * @unittest: 1304
+ *
+ * *loginp and *passwordp MUST be allocated if they aren't NULL when passed
+ * in.
+ */
+CURL_STATIC int Curl_parsenetrc(const char *host,
+ char **loginp,
+ char **passwordp,
+ char *netrcfile)
+{
+ FILE *file;
+ int retcode=1;
+ int specific_login = (*loginp && **loginp != 0);
+ bool netrc_alloc = FALSE;
+ enum host_lookup_state state=NOTHING;
+
+ char state_login=0; /* Found a login keyword */
+ char state_password=0; /* Found a password keyword */
+ int state_our_login=FALSE; /* With specific_login, found *our* login name */
+
+#define NETRC DOT_CHAR "netrc"
+
+ if(!netrcfile) {
+ bool home_alloc = FALSE;
+ char *home = curl_getenv("HOME"); /* portable environment reader */
+ if(home) {
+ home_alloc = TRUE;
+#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
+ }
+ else {
+ struct passwd pw, *pw_res;
+ char pwbuf[1024];
+ if(!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res)
+ && pw_res) {
+ home = strdup(pw.pw_dir);
+ if(!home)
+ return CURLE_OUT_OF_MEMORY;
+ home_alloc = TRUE;
+ }
+#elif defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
+ }
+ else {
+ struct passwd *pw;
+ pw= getpwuid(geteuid());
+ if(pw) {
+ home = pw->pw_dir;
+ }
+#endif
+ }
+
+ if(!home)
+ return retcode; /* no home directory found (or possibly out of memory) */
+
+ netrcfile = curl_maprintf("%s%s%s", home, DIR_CHAR, NETRC);
+ if(home_alloc)
+ free(home);
+ if(!netrcfile) {
+ return -1;
+ }
+ netrc_alloc = TRUE;
+ }
+
+ file = fopen(netrcfile, "r");
+ if(netrc_alloc)
+ free(netrcfile);
+ if(file) {
+ char *tok;
+ char *tok_buf;
+ bool done=FALSE;
+ char netrcbuffer[256];
+ int netrcbuffsize = (int)sizeof(netrcbuffer);
+
+ while(!done && fgets(netrcbuffer, netrcbuffsize, file)) {
+ tok=strtok_r(netrcbuffer, " \t\n", &tok_buf);
+ while(!done && tok) {
+
+ if((*loginp && **loginp) && (*passwordp && **passwordp)) {
+ done=TRUE;
+ break;
+ }
+
+ switch(state) {
+ case NOTHING:
+ if(Curl_raw_equal("machine", tok)) {
+ /* the next tok is the machine name, this is in itself the
+ delimiter that starts the stuff entered for this machine,
+ after this we need to search for 'login' and
+ 'password'. */
+ state=HOSTFOUND;
+ }
+ break;
+ case HOSTFOUND:
+ if(Curl_raw_equal(host, tok)) {
+ /* and yes, this is our host! */
+ state=HOSTVALID;
+ retcode=0; /* we did find our host */
+ }
+ else
+ /* not our host */
+ state=NOTHING;
+ break;
+ case HOSTVALID:
+ /* we are now parsing sub-keywords concerning "our" host */
+ if(state_login) {
+ if(specific_login) {
+ state_our_login = Curl_raw_equal(*loginp, tok);
+ }
+ else {
+ free(*loginp);
+ *loginp = strdup(tok);
+ if(!*loginp) {
+ retcode = -1; /* allocation failed */
+ goto out;
+ }
+ }
+ state_login=0;
+ }
+ else if(state_password) {
+ if(state_our_login || !specific_login) {
+ free(*passwordp);
+ *passwordp = strdup(tok);
+ if(!*passwordp) {
+ retcode = -1; /* allocation failed */
+ goto out;
+ }
+ }
+ state_password=0;
+ }
+ else if(Curl_raw_equal("login", tok))
+ state_login=1;
+ else if(Curl_raw_equal("password", tok))
+ state_password=1;
+ else if(Curl_raw_equal("machine", tok)) {
+ /* ok, there's machine here go => */
+ state = HOSTFOUND;
+ state_our_login = FALSE;
+ }
+ break;
+ } /* switch (state) */
+
+ tok = strtok_r(NULL, " \t\n", &tok_buf);
+ } /* while(tok) */
+ } /* while fgets() */
+
+ out:
+ fclose(file);
+ }
+
+ return retcode;
+}