/src/PROJ/curl/lib/netrc.c

Source
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 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 https://curl.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.
 *
 * SPDX-License-Identifier: curl
 *
 ***************************************************************************/

#include "curl_setup.h"
#ifndef CURL_DISABLE_NETRC

#ifdef HAVE_PWD_H
#ifdef __AMIGA__
#undef __NO_NET_API /* required for AmigaOS to declare getpwuid() */
#endif
#include <pwd.h>
#ifdef __AMIGA__
#define __NO_NET_API
#endif
#endif

#include <curl/curl.h>
#include "netrc.h"
#include "strcase.h"
#include "curl_get_line.h"
#include "curlx/fopen.h"
#include "curlx/strparse.h"

/* The last 2 #include files should be in this order */
#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! */
  MACDEF
};

enum found_state {
  NONE,
  LOGIN,
  PASSWORD
};

#define FOUND_LOGIN    1
#define FOUND_PASSWORD 2

#define MAX_NETRC_LINE 16384
#define MAX_NETRC_FILE (128*1024)
#define MAX_NETRC_TOKEN 4096

/* convert a dynbuf call CURLcode error to a NETRCcode error */
#define curl2netrc(result)                     \
  (((result) == CURLE_OUT_OF_MEMORY) ?         \
   NETRC_OUT_OF_MEMORY : NETRC_SYNTAX_ERROR)

static NETRCcode file2memory(const char *filename, struct dynbuf *filebuf)
{
  NETRCcode ret = NETRC_FILE_MISSING; /* if it cannot open the file */
  FILE *file = curlx_fopen(filename, FOPEN_READTEXT);
  struct dynbuf linebuf;
  curlx_dyn_init(&linebuf, MAX_NETRC_LINE);

  if(file) {
    CURLcode result = CURLE_OK;
    bool eof;
    ret = NETRC_OK;
    do {
      const char *line;
      result = Curl_get_line(&linebuf, file, &eof);
      if(!result) {
        line = curlx_dyn_ptr(&linebuf);
        /* skip comments on load */
        curlx_str_passblanks(&line);
        if(*line == '#')
          continue;
        result = curlx_dyn_add(filebuf, line);
      }
      if(result) {
        curlx_dyn_free(filebuf);
        ret = curl2netrc(result);
        break;
      }
    } while(!eof);
  }
  curlx_dyn_free(&linebuf);
  if(file)
    curlx_fclose(file);
  return ret;
}

/*
 * Returns zero on success.
 */
static NETRCcode parsenetrc(struct store_netrc *store,
                            const char *host,
                            char **loginp, /* might point to a username */
                            char **passwordp,
                            const char *netrcfile)
{
  NETRCcode retcode = NETRC_NO_MATCH;
  char *login = *loginp;
  char *password = NULL;
  bool specific_login = !!login; /* points to something */
  enum host_lookup_state state = NOTHING;
  enum found_state keyword = NONE;
  unsigned char found = 0; /* login + password found bits, as they can come in
                              any order */
  bool our_login = FALSE;  /* found our login name */
  bool done = FALSE;
  char *netrcbuffer;
  struct dynbuf token;
  struct dynbuf *filebuf = &store->filebuf;
  DEBUGASSERT(!*passwordp);
  curlx_dyn_init(&token, MAX_NETRC_TOKEN);

  if(!store->loaded) {
    NETRCcode ret = file2memory(netrcfile, filebuf);
    if(ret)
      return ret;
    store->loaded = TRUE;
  }

  netrcbuffer = curlx_dyn_ptr(filebuf);

  while(!done) {
    const char *tok = netrcbuffer;
    while(tok && !done) {
      const char *tok_end;
      bool quoted;
      curlx_dyn_reset(&token);
      curlx_str_passblanks(&tok);
      /* tok is first non-space letter */
      if(state == MACDEF) {
        if((*tok == '\n') || (*tok == '\r'))
          state = NOTHING; /* end of macro definition */
      }

      if(!*tok || (*tok == '\n'))
        /* end of line  */
        break;

      /* leading double-quote means quoted string */
      quoted = (*tok == '\"');

      tok_end = tok;
      if(!quoted) {
        size_t len = 0;
        CURLcode result;
        while(*tok_end > ' ') {
          tok_end++;
          len++;
        }
        if(!len) {
          retcode = NETRC_SYNTAX_ERROR;
          goto out;
        }
        result = curlx_dyn_addn(&token, tok, len);
        if(result) {
          retcode = curl2netrc(result);
          goto out;
        }
      }
      else {
        bool escape = FALSE;
        bool endquote = FALSE;
        tok_end++; /* pass the leading quote */
        while(*tok_end) {
          CURLcode result;
          char s = *tok_end;
          if(escape) {
            escape = FALSE;
            switch(s) {
            case 'n':
              s = '\n';
              break;
            case 'r':
              s = '\r';
              break;
            case 't':
              s = '\t';
              break;
            }
          }
          else if(s == '\\') {
            escape = TRUE;
            tok_end++;
            continue;
          }
          else if(s == '\"') {
            tok_end++; /* pass the ending quote */
            endquote = TRUE;
            break;
          }
          result = curlx_dyn_addn(&token, &s, 1);
          if(result) {
            retcode = curl2netrc(result);
            goto out;
          }
          tok_end++;
        }
        if(escape || !endquote) {
          /* bad syntax, get out */
          retcode = NETRC_SYNTAX_ERROR;
          goto out;
        }
      }

      if(curlx_dyn_len(&token))
        tok = curlx_dyn_ptr(&token);
      else
        /* since tok might actually be NULL for no content, set it to blank
           to avoid having to deal with it being NULL */
        tok = "";

      switch(state) {
      case NOTHING:
        if(curl_strequal("macdef", tok))
          /* Define a macro. A macro is defined with the specified name; its
             contents begin with the next .netrc line and continue until a
             null line (consecutive new-line characters) is encountered. */
          state = MACDEF;
        else if(curl_strequal("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;
          keyword = NONE;
          found = 0;
          our_login = FALSE;
          Curl_safefree(password);
          if(!specific_login)
            Curl_safefree(login);
        }
        else if(curl_strequal("default", tok)) {
          state = HOSTVALID;
          retcode = NETRC_OK; /* we did find our host */
        }
        break;
      case MACDEF:
        if(!*tok)
          state = NOTHING;
        break;
      case HOSTFOUND:
        if(curl_strequal(host, tok)) {
          /* and yes, this is our host! */
          state = HOSTVALID;
          retcode = NETRC_OK; /* we did find our host */
        }
        else
          /* not our host */
          state = NOTHING;
        break;
      case HOSTVALID:
        /* we are now parsing sub-keywords concerning "our" host */
        if(keyword == LOGIN) {
          if(specific_login)
            our_login = !Curl_timestrcmp(login, tok);
          else {
            our_login = TRUE;
            free(login);
            login = strdup(tok);
            if(!login) {
              retcode = NETRC_OUT_OF_MEMORY; /* allocation failed */
              goto out;
            }
          }
          found |= FOUND_LOGIN;
          keyword = NONE;
        }
        else if(keyword == PASSWORD) {
          free(password);
          password = strdup(tok);
          if(!password) {
            retcode = NETRC_OUT_OF_MEMORY; /* allocation failed */
            goto out;
          }
          if(!specific_login || our_login)
            found |= FOUND_PASSWORD;
          keyword = NONE;
        }
        else if(curl_strequal("login", tok))
          keyword = LOGIN;
        else if(curl_strequal("password", tok))
          keyword = PASSWORD;
        else if(curl_strequal("machine", tok)) {
          /* a new machine here */
          if(found & FOUND_PASSWORD) {
            done = TRUE;
            break;
          }
          state = HOSTFOUND;
          keyword = NONE;
          found = 0;
          Curl_safefree(password);
          if(!specific_login)
            Curl_safefree(login);
        }
        else if(curl_strequal("default", tok)) {
          state = HOSTVALID;
          retcode = NETRC_OK; /* we did find our host */
          Curl_safefree(password);
          if(!specific_login)
            Curl_safefree(login);
        }
        if((found == (FOUND_PASSWORD|FOUND_LOGIN)) && our_login) {
          done = TRUE;
          break;
        }
        break;
      } /* switch (state) */
      tok = ++tok_end;
    }
    if(!done) {
      char *nl = NULL;
      if(tok)
        nl = strchr(tok, '\n');
      if(!nl)
        break;
      /* point to next line */
      netrcbuffer = &nl[1];
    }
  } /* while !done */

out:
  curlx_dyn_free(&token);
  if(!retcode) {
    if(!password && our_login) {
      /* success without a password, set a blank one */
      password = strdup("");
      if(!password)
        retcode = NETRC_OUT_OF_MEMORY; /* out of memory */
    }
    else if(!login && !password)
      /* a default with no credentials */
      retcode = NETRC_NO_MATCH;
  }
  if(!retcode) {
    /* success */
    if(!specific_login)
      *loginp = login;
    *passwordp = password;
  }
  else {
    curlx_dyn_free(filebuf);
    store->loaded = FALSE;
    if(!specific_login)
      free(login);
    free(password);
  }

  return retcode;
}

const char *Curl_netrc_strerror(NETRCcode ret)
{
  switch(ret) {
  default:
    return ""; /* not a legit error */
  case NETRC_FILE_MISSING:
    return "no such file";
  case NETRC_NO_MATCH:
    return "no matching entry";
  case NETRC_OUT_OF_MEMORY:
    return "out of memory";
  case NETRC_SYNTAX_ERROR:
    return "syntax error";
  }
  /* never reached */
}

/*
 * @unittest: 1304
 *
 * *loginp and *passwordp MUST be allocated if they are not NULL when passed
 * in.
 */
NETRCcode Curl_parsenetrc(struct store_netrc *store, const char *host,
                          char **loginp, char **passwordp,
                          const char *netrcfile)
{
  NETRCcode retcode = NETRC_OK;
  char *filealloc = NULL;

  if(!netrcfile) {
    char *home = NULL;
    char *homea = NULL;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
    char pwbuf[1024];
#endif
    filealloc = curl_getenv("NETRC");
    if(!filealloc) {
      homea = curl_getenv("HOME"); /* portable environment reader */
      if(homea) {
        home = homea;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
      }
      else {
        struct passwd pw, *pw_res;
        if(!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res)
           && pw_res) {
          home = pw.pw_dir;
        }
#elif defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
      }
      else {
        struct passwd *pw;
        pw = getpwuid(geteuid());
        if(pw) {
          home = pw->pw_dir;
        }
#elif defined(_WIN32)
      }
      else {
        homea = curl_getenv("USERPROFILE");
        if(homea) {
          home = homea;
        }
#endif
      }

      if(!home)
        return NETRC_FILE_MISSING; /* no home directory found (or possibly out
                                      of memory) */

      filealloc = curl_maprintf("%s%s.netrc", home, DIR_CHAR);
      if(!filealloc) {
        free(homea);
        return NETRC_OUT_OF_MEMORY;
      }
    }
    retcode = parsenetrc(store, host, loginp, passwordp, filealloc);
    free(filealloc);
#ifdef _WIN32
    if(retcode == NETRC_FILE_MISSING) {
      /* fallback to the old-style "_netrc" file */
      filealloc = curl_maprintf("%s%s_netrc", home, DIR_CHAR);
      if(!filealloc) {
        free(homea);
        return NETRC_OUT_OF_MEMORY;
      }
      retcode = parsenetrc(store, host, loginp, passwordp, filealloc);
      free(filealloc);
    }
#endif
    free(homea);
  }
  else
    retcode = parsenetrc(store, host, loginp, passwordp, netrcfile);
  return retcode;
}

void Curl_netrc_init(struct store_netrc *s)
{
  curlx_dyn_init(&s->filebuf, MAX_NETRC_FILE);
  s->loaded = FALSE;
}
void Curl_netrc_cleanup(struct store_netrc *s)
{
  curlx_dyn_free(&s->filebuf);
  s->loaded = FALSE;
}
#endif

Coverage Report

Created: 2025-10-30 06:17

Line	Count	Source
1		/***************************************************************************
2		* _ _ ____ _
3		* Project ___\| \| \| \| _ \\| \|
4		* / __\| \| \| \| \|_) \| \|
5		* \| (__\| \|_\| \| _ <\| \|___
6		* \___\|\___/\|_\| \_\_____\|
7		*
8		* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9		*
10		* This software is licensed as described in the file COPYING, which
11		* you should have received as part of this distribution. The terms
12		* are also available at https://curl.se/docs/copyright.html.
13		*
14		* You may opt to use, copy, modify, merge, publish, distribute and/or sell
15		* copies of the Software, and permit persons to whom the Software is
16		* furnished to do so, under the terms of the COPYING file.
17		*
18		* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19		* KIND, either express or implied.
20		*
21		* SPDX-License-Identifier: curl
22		*
23		***************************************************************************/
24
25		#include "curl_setup.h"
26		#ifndef CURL_DISABLE_NETRC
27
28		#ifdef HAVE_PWD_H
29		#ifdef __AMIGA__
30		#undef __NO_NET_API /* required for AmigaOS to declare getpwuid() */
31		#endif
32		#include <pwd.h>
33		#ifdef __AMIGA__
34		#define __NO_NET_API
35		#endif
36		#endif
37
38		#include <curl/curl.h>
39		#include "netrc.h"
40		#include "strcase.h"
41		#include "curl_get_line.h"
42		#include "curlx/fopen.h"
43		#include "curlx/strparse.h"
44
45		/* The last 2 #include files should be in this order */
46		#include "curl_memory.h"
47		#include "memdebug.h"
48
49		/* Get user and password from .netrc when given a machine name */
50
51		enum host_lookup_state {
52		NOTHING,
53		HOSTFOUND, /* the 'machine' keyword was found */
54		HOSTVALID, /* this is "our" machine! */
55		MACDEF
56		};
57
58		enum found_state {
59		NONE,
60		LOGIN,
61		PASSWORD
62		};
63
64	0	#define FOUND_LOGIN 1
65	0	#define FOUND_PASSWORD 2
66
67	0	#define MAX_NETRC_LINE 16384
68	0	#define MAX_NETRC_FILE (128*1024)
69	0	#define MAX_NETRC_TOKEN 4096
70
71		/* convert a dynbuf call CURLcode error to a NETRCcode error */
72		#define curl2netrc(result) \
73	0	(((result) == CURLE_OUT_OF_MEMORY) ? \
74	0	NETRC_OUT_OF_MEMORY : NETRC_SYNTAX_ERROR)
75
76		static NETRCcode file2memory(const char filename, struct dynbuf filebuf)
77	0	{
78	0	NETRCcode ret = NETRC_FILE_MISSING; /* if it cannot open the file */
79	0	FILE *file = curlx_fopen(filename, FOPEN_READTEXT);
80	0	struct dynbuf linebuf;
81	0	curlx_dyn_init(&linebuf, MAX_NETRC_LINE);
82
83	0	if(file) {
84	0	CURLcode result = CURLE_OK;
85	0	bool eof;
86	0	ret = NETRC_OK;
87	0	do {
88	0	const char *line;
89	0	result = Curl_get_line(&linebuf, file, &eof);
90	0	if(!result) {
91	0	line = curlx_dyn_ptr(&linebuf);
92		/* skip comments on load */
93	0	curlx_str_passblanks(&line);
94	0	if(*line == '#')
95	0	continue;
96	0	result = curlx_dyn_add(filebuf, line);
97	0	}
98	0	if(result) {
99	0	curlx_dyn_free(filebuf);
100	0	ret = curl2netrc(result);
101	0	break;
102	0	}
103	0	} while(!eof);
104	0	}
105	0	curlx_dyn_free(&linebuf);
106	0	if(file)
107	0	curlx_fclose(file);
108	0	return ret;
109	0	}
110
111		/*
112		* Returns zero on success.
113		*/
114		static NETRCcode parsenetrc(struct store_netrc *store,
115		const char *host,
116		char *loginp, / might point to a username */
117		char **passwordp,
118		const char *netrcfile)
119	0	{
120	0	NETRCcode retcode = NETRC_NO_MATCH;
121	0	char login = loginp;
122	0	char *password = NULL;
123	0	bool specific_login = !!login; /* points to something */
124	0	enum host_lookup_state state = NOTHING;
125	0	enum found_state keyword = NONE;
126	0	unsigned char found = 0; /* login + password found bits, as they can come in
127		any order */
128	0	bool our_login = FALSE; /* found our login name */
129	0	bool done = FALSE;
130	0	char *netrcbuffer;
131	0	struct dynbuf token;
132	0	struct dynbuf *filebuf = &store->filebuf;
133	0	DEBUGASSERT(!*passwordp);
134	0	curlx_dyn_init(&token, MAX_NETRC_TOKEN);
135
136	0	if(!store->loaded) {
137	0	NETRCcode ret = file2memory(netrcfile, filebuf);
138	0	if(ret)
139	0	return ret;
140	0	store->loaded = TRUE;
141	0	}
142
143	0	netrcbuffer = curlx_dyn_ptr(filebuf);
144
145	0	while(!done) {
146	0	const char *tok = netrcbuffer;
147	0	while(tok && !done) {
148	0	const char *tok_end;
149	0	bool quoted;
150	0	curlx_dyn_reset(&token);
151	0	curlx_str_passblanks(&tok);
152		/* tok is first non-space letter */
153	0	if(state == MACDEF) {
154	0	if((tok == '\n') \|\| (tok == '\r'))
155	0	state = NOTHING; /* end of macro definition */
156	0	}
157
158	0	if(!tok \|\| (tok == '\n'))
159		/* end of line */
160	0	break;
161
162		/* leading double-quote means quoted string */
163	0	quoted = (*tok == '\"');
164
165	0	tok_end = tok;
166	0	if(!quoted) {
167	0	size_t len = 0;
168	0	CURLcode result;
169	0	while(*tok_end > ' ') {
170	0	tok_end++;
171	0	len++;
172	0	}
173	0	if(!len) {
174	0	retcode = NETRC_SYNTAX_ERROR;
175	0	goto out;
176	0	}
177	0	result = curlx_dyn_addn(&token, tok, len);
178	0	if(result) {
179	0	retcode = curl2netrc(result);
180	0	goto out;
181	0	}
182	0	}
183	0	else {
184	0	bool escape = FALSE;
185	0	bool endquote = FALSE;
186	0	tok_end++; /* pass the leading quote */
187	0	while(*tok_end) {
188	0	CURLcode result;
189	0	char s = *tok_end;
190	0	if(escape) {
191	0	escape = FALSE;
192	0	switch(s) {
193	0	case 'n':
194	0	s = '\n';
195	0	break;
196	0	case 'r':
197	0	s = '\r';
198	0	break;
199	0	case 't':
200	0	s = '\t';
201	0	break;
202	0	}
203	0	}
204	0	else if(s == '\\') {
205	0	escape = TRUE;
206	0	tok_end++;
207	0	continue;
208	0	}
209	0	else if(s == '\"') {
210	0	tok_end++; /* pass the ending quote */
211	0	endquote = TRUE;
212	0	break;
213	0	}
214	0	result = curlx_dyn_addn(&token, &s, 1);
215	0	if(result) {
216	0	retcode = curl2netrc(result);
217	0	goto out;
218	0	}
219	0	tok_end++;
220	0	}
221	0	if(escape \|\| !endquote) {
222		/* bad syntax, get out */
223	0	retcode = NETRC_SYNTAX_ERROR;
224	0	goto out;
225	0	}
226	0	}
227
228	0	if(curlx_dyn_len(&token))
229	0	tok = curlx_dyn_ptr(&token);
230	0	else
231		/* since tok might actually be NULL for no content, set it to blank
232		to avoid having to deal with it being NULL */
233	0	tok = "";
234
235	0	switch(state) {
236	0	case NOTHING:
237	0	if(curl_strequal("macdef", tok))
238		/* Define a macro. A macro is defined with the specified name; its
239		contents begin with the next .netrc line and continue until a
240		null line (consecutive new-line characters) is encountered. */
241	0	state = MACDEF;
242	0	else if(curl_strequal("machine", tok)) {
243		/* the next tok is the machine name, this is in itself the delimiter
244		that starts the stuff entered for this machine, after this we
245		need to search for 'login' and 'password'. */
246	0	state = HOSTFOUND;
247	0	keyword = NONE;
248	0	found = 0;
249	0	our_login = FALSE;
250	0	Curl_safefree(password);
251	0	if(!specific_login)
252	0	Curl_safefree(login);
253	0	}
254	0	else if(curl_strequal("default", tok)) {
255	0	state = HOSTVALID;
256	0	retcode = NETRC_OK; /* we did find our host */
257	0	}
258	0	break;
259	0	case MACDEF:
260	0	if(!*tok)
261	0	state = NOTHING;
262	0	break;
263	0	case HOSTFOUND:
264	0	if(curl_strequal(host, tok)) {
265		/* and yes, this is our host! */
266	0	state = HOSTVALID;
267	0	retcode = NETRC_OK; /* we did find our host */
268	0	}
269	0	else
270		/* not our host */
271	0	state = NOTHING;
272	0	break;
273	0	case HOSTVALID:
274		/* we are now parsing sub-keywords concerning "our" host */
275	0	if(keyword == LOGIN) {
276	0	if(specific_login)
277	0	our_login = !Curl_timestrcmp(login, tok);
278	0	else {
279	0	our_login = TRUE;
280	0	free(login);
281	0	login = strdup(tok);
282	0	if(!login) {
283	0	retcode = NETRC_OUT_OF_MEMORY; /* allocation failed */
284	0	goto out;
285	0	}
286	0	}
287	0	found \|= FOUND_LOGIN;
288	0	keyword = NONE;
289	0	}
290	0	else if(keyword == PASSWORD) {
291	0	free(password);
292	0	password = strdup(tok);
293	0	if(!password) {
294	0	retcode = NETRC_OUT_OF_MEMORY; /* allocation failed */
295	0	goto out;
296	0	}
297	0	if(!specific_login \|\| our_login)
298	0	found \|= FOUND_PASSWORD;
299	0	keyword = NONE;
300	0	}
301	0	else if(curl_strequal("login", tok))
302	0	keyword = LOGIN;
303	0	else if(curl_strequal("password", tok))
304	0	keyword = PASSWORD;
305	0	else if(curl_strequal("machine", tok)) {
306		/* a new machine here */
307	0	if(found & FOUND_PASSWORD) {
308	0	done = TRUE;
309	0	break;
310	0	}
311	0	state = HOSTFOUND;
312	0	keyword = NONE;
313	0	found = 0;
314	0	Curl_safefree(password);
315	0	if(!specific_login)
316	0	Curl_safefree(login);
317	0	}
318	0	else if(curl_strequal("default", tok)) {
319	0	state = HOSTVALID;
320	0	retcode = NETRC_OK; /* we did find our host */
321	0	Curl_safefree(password);
322	0	if(!specific_login)
323	0	Curl_safefree(login);
324	0	}
325	0	if((found == (FOUND_PASSWORD\|FOUND_LOGIN)) && our_login) {
326	0	done = TRUE;
327	0	break;
328	0	}
329	0	break;
330	0	} /* switch (state) */
331	0	tok = ++tok_end;
332	0	}
333	0	if(!done) {
334	0	char *nl = NULL;
335	0	if(tok)
336	0	nl = strchr(tok, '\n');
337	0	if(!nl)
338	0	break;
339		/* point to next line */
340	0	netrcbuffer = &nl[1];
341	0	}
342	0	} /* while !done */
343
344	0	out:
345	0	curlx_dyn_free(&token);
346	0	if(!retcode) {
347	0	if(!password && our_login) {
348		/* success without a password, set a blank one */
349	0	password = strdup("");
350	0	if(!password)
351	0	retcode = NETRC_OUT_OF_MEMORY; /* out of memory */
352	0	}
353	0	else if(!login && !password)
354		/* a default with no credentials */
355	0	retcode = NETRC_NO_MATCH;
356	0	}
357	0	if(!retcode) {
358		/* success */
359	0	if(!specific_login)
360	0	*loginp = login;
361	0	*passwordp = password;
362	0	}
363	0	else {
364	0	curlx_dyn_free(filebuf);
365	0	store->loaded = FALSE;
366	0	if(!specific_login)
367	0	free(login);
368	0	free(password);
369	0	}
370
371	0	return retcode;
372	0	}
373
374		const char *Curl_netrc_strerror(NETRCcode ret)
375	0	{
376	0	switch(ret) {
377	0	default:
378	0	return ""; /* not a legit error */
379	0	case NETRC_FILE_MISSING:
380	0	return "no such file";
381	0	case NETRC_NO_MATCH:
382	0	return "no matching entry";
383	0	case NETRC_OUT_OF_MEMORY:
384	0	return "out of memory";
385	0	case NETRC_SYNTAX_ERROR:
386	0	return "syntax error";
387	0	}
388		/* never reached */
389	0	}
390
391		/*
392		* @unittest: 1304
393		*
394		* loginp and passwordp MUST be allocated if they are not NULL when passed
395		* in.
396		*/
397		NETRCcode Curl_parsenetrc(struct store_netrc store, const char host,
398		char loginp, char passwordp,
399		const char *netrcfile)
400	0	{
401	0	NETRCcode retcode = NETRC_OK;
402	0	char *filealloc = NULL;
403
404	0	if(!netrcfile) {
405	0	char *home = NULL;
406	0	char *homea = NULL;
407	0	#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
408	0	char pwbuf[1024];
409	0	#endif
410	0	filealloc = curl_getenv("NETRC");
411	0	if(!filealloc) {
412	0	homea = curl_getenv("HOME"); /* portable environment reader */
413	0	if(homea) {
414	0	home = homea;
415	0	#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
416	0	}
417	0	else {
418	0	struct passwd pw, *pw_res;
419	0	if(!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res)
420	0	&& pw_res) {
421	0	home = pw.pw_dir;
422	0	}
423		#elif defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
424		}
425		else {
426		struct passwd *pw;
427		pw = getpwuid(geteuid());
428		if(pw) {
429		home = pw->pw_dir;
430		}
431		#elif defined(_WIN32)
432		}
433		else {
434		homea = curl_getenv("USERPROFILE");
435		if(homea) {
436		home = homea;
437		}
438		#endif
439	0	}
440
441	0	if(!home)
442	0	return NETRC_FILE_MISSING; /* no home directory found (or possibly out
443		of memory) */
444
445	0	filealloc = curl_maprintf("%s%s.netrc", home, DIR_CHAR);
446	0	if(!filealloc) {
447	0	free(homea);
448	0	return NETRC_OUT_OF_MEMORY;
449	0	}
450	0	}
451	0	retcode = parsenetrc(store, host, loginp, passwordp, filealloc);
452	0	free(filealloc);
453		#ifdef _WIN32
454		if(retcode == NETRC_FILE_MISSING) {
455		/* fallback to the old-style "_netrc" file */
456		filealloc = curl_maprintf("%s%s_netrc", home, DIR_CHAR);
457		if(!filealloc) {
458		free(homea);
459		return NETRC_OUT_OF_MEMORY;
460		}
461		retcode = parsenetrc(store, host, loginp, passwordp, filealloc);
462		free(filealloc);
463		}
464		#endif
465	0	free(homea);
466	0	}
467	0	else
468	0	retcode = parsenetrc(store, host, loginp, passwordp, netrcfile);
469	0	return retcode;
470	0	}
471
472		void Curl_netrc_init(struct store_netrc *s)
473	0	{
474	0	curlx_dyn_init(&s->filebuf, MAX_NETRC_FILE);
475	0	s->loaded = FALSE;
476	0	}
477		void Curl_netrc_cleanup(struct store_netrc *s)
478	0	{
479	0	curlx_dyn_free(&s->filebuf);
480		s->loaded = FALSE;
481	0	}
482		#endif