/* Read and parse the .netrc file to get hosts, accounts, and passwords.
- Copyright (C) 1996, Free Software Foundation, Inc.
+ Copyright (C) 1996, 2007, 2008, 2009, 2010, 2011 Free Software
+ Foundation, Inc.
-This file is part of Wget.
+This file is part of GNU Wget.
-This program is free software; you can redistribute it and/or modify
+GNU Wget is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-This program is distributed in the hope that it will be useful,
+GNU Wget is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with Wget. If not, see <http://www.gnu.org/licenses/>.
+
+Additional permission under GNU GPL version 3 section 7
+
+If you modify this program, or any covered work, by linking or
+combining it with the OpenSSL project's OpenSSL library (or a
+modified version of that library), containing parts covered by the
+terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
+grants you additional permission to convey the resulting work.
+Corresponding Source for a non-source form of such a combination
+shall include the source code for the parts of OpenSSL used as well
+as that of the covered work. */
/* This file used to be kept in synch with the code in Fetchmail, but
the latter has diverged since. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include "wget.h"
#include <stdio.h>
-#include <ctype.h>
#include <stdlib.h>
-#ifdef HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
-#endif
-#include <sys/types.h>
+#include <string.h>
#include <errno.h>
-#include "wget.h"
#include "utils.h"
#include "netrc.h"
#include "init.h"
-#ifndef errno
-extern int errno;
-#endif
-
#define NETRC_FILE_NAME ".netrc"
acc_t *netrc_list;
-static acc_t *parse_netrc PARAMS ((const char *));
+static acc_t *parse_netrc (const char *);
/* Return the correct user and password, given the host, user (as
given in the URL), and password (as given in the URL). May return
You will typically turn it off for HTTP. */
void
search_netrc (const char *host, const char **acc, const char **passwd,
- int slack_default)
+ int slack_default)
{
acc_t *l;
static int processed_netrc;
/* Find ~/.netrc. */
if (!processed_netrc)
{
- char *home = home_dir();
+#ifdef __VMS
+
+ int err;
+ struct_stat buf;
+ char *path = "SYS$LOGIN:.netrc";
+
+ netrc_list = NULL;
+ processed_netrc = 1;
+
+ err = stat (path, &buf);
+ if (err == 0)
+ netrc_list = parse_netrc (path);
+
+#else /* def __VMS */
+
+ char *home = home_dir ();
netrc_list = NULL;
processed_netrc = 1;
if (home)
- {
- int err;
- struct stat buf;
- char *path = (char *)alloca (strlen (home) + 1
- + strlen (NETRC_FILE_NAME) + 1);
- sprintf (path, "%s/%s", home, NETRC_FILE_NAME);
- free (home);
- err = stat (path, &buf);
- if (err == 0)
- netrc_list = parse_netrc (path);
- }
+ {
+ int err;
+ struct_stat buf;
+ char *path = (char *)alloca (strlen (home) + 1
+ + strlen (NETRC_FILE_NAME) + 1);
+ sprintf (path, "%s/%s", home, NETRC_FILE_NAME);
+ xfree (home);
+ err = stat (path, &buf);
+ if (err == 0)
+ netrc_list = parse_netrc (path);
+ }
+
+#endif /* def __VMS [else] */
}
/* If nothing to do... */
if (!netrc_list)
/* Acc and password found; all OK. */
if (*acc && *passwd)
return;
- if (!*acc && !slack_default)
- return;
/* Some data not given -- try finding the host. */
for (l = netrc_list; l; l = l->next)
{
if (!l->host)
- continue;
+ continue;
else if (!strcasecmp (l->host, host))
- break;
+ break;
}
if (l)
{
if (*acc)
- {
- /* Looking for password in .netrc. */
- if (!strcmp (l->acc, *acc))
- *passwd = l->passwd; /* usernames match; password OK */
- else
- *passwd = NULL; /* usernames don't match */
- }
- else /* NOT *acc */
- {
- /* If password was given, use it. The account is l->acc. */
- *acc = l->acc;
- if (l->passwd)
- *passwd = l->passwd;
- }
+ {
+ /* Looking for password in .netrc. */
+ if (!strcmp (l->acc, *acc))
+ *passwd = l->passwd; /* usernames match; password OK */
+ else
+ *passwd = NULL; /* usernames don't match */
+ }
+ else /* NOT *acc */
+ {
+ /* If password was given, use it. The account is l->acc. */
+ *acc = l->acc;
+ if (l->passwd)
+ *passwd = l->passwd;
+ }
return;
}
else
{
if (!slack_default)
- return;
+ return;
if (*acc)
- return;
+ return;
/* Try looking for the default account. */
for (l = netrc_list; l; l = l->next)
- if (!l->host)
- break;
+ if (!l->host)
+ break;
if (!l)
- return;
+ return;
*acc = l->acc;
if (!*passwd)
- *passwd = l->passwd;
+ *passwd = l->passwd;
return;
}
}
#ifdef STANDALONE
+
+#include <assert.h>
+
/* Normally, these functions would be defined by your package. */
# define xmalloc malloc
+# define xfree free
# define xstrdup strdup
-/* The function reads a whole line. It reads the line realloc-ing the
- storage exponentially, doubling the storage after each overflow to
- minimize the number of calls to realloc().
-
- It is not an exemplary of correctness, since it kills off the
- newline (and no, there is no way to know if there was a newline at
- EOF). */
# define xrealloc realloc
-# define DYNAMIC_LINE_BUFFER 40
-
-char *
-read_whole_line (FILE *fp)
-{
- char *line;
- int i, bufsize, c;
-
- i = 0;
- bufsize = DYNAMIC_LINE_BUFFER;
- line = xmalloc(bufsize);
- /* Construct the line. */
- while ((c = getc(fp)) != EOF && c != '\n')
- {
- if (i > bufsize - 1)
- line = (char *)xrealloc(line, (bufsize <<= 1));
- line[i++] = c;
- }
- if (c == EOF && !i)
- {
- free(line);
- return NULL;
- }
-
- /* Check for overflow at zero-termination (no need to double the
- buffer in this case. */
- if (i == bufsize)
- line = (char *)xrealloc(line, i + 1);
- line[i] = '\0';
- return line;
-}
#endif /* STANDALONE */
if (a && ! a->acc)
{
/* Free any allocated space. */
- free (a->host);
- free (a->acc);
- free (a->passwd);
+ xfree_null (a->host);
+ xfree_null (a->acc);
+ xfree_null (a->passwd);
}
else
{
if (a)
- {
- /* Add the current machine into our list. */
- a->next = l;
- l = a;
- }
+ {
+ /* Add the current machine into our list. */
+ a->next = l;
+ l = a;
+ }
/* Allocate a new acc_t structure. */
- a = (acc_t *)xmalloc (sizeof (acc_t));
+ a = xmalloc (sizeof (acc_t));
}
/* Zero the structure, so that it is ready to use. */
return;
}
+/* Helper function for the parser, shifts contents of
+ null-terminated string once character to the left.
+ Used in processing \ and " constructs in the netrc file */
+static void
+shift_left(char *string)
+{
+ char *p;
+
+ for (p=string; *p; ++p)
+ *p = *(p+1);
+}
/* Parse a .netrc file (as described in the ftp(1) manual page). */
static acc_t *
parse_netrc (const char *path)
{
FILE *fp;
- char *line, *p, *tok, *premature_token;
+ char *line = NULL, *p, *tok;
+ const char *premature_token;
acc_t *current, *retval;
- int ln;
+ int ln, qmark;
+ size_t bufsize = 0;
/* The latest token we've seen in the file. */
enum
if (!fp)
{
fprintf (stderr, _("%s: Cannot read %s (%s).\n"), exec_name,
- path, strerror (errno));
+ path, strerror (errno));
return retval;
}
premature_token = NULL;
/* While there are lines in the file... */
- while ((line = read_whole_line (fp)))
+ while (getline (&line, &bufsize, fp) > 0)
{
ln ++;
/* Parse the line. */
p = line;
+ qmark = 0;
+
+ /* Skip leading whitespace. */
+ while (*p && c_isspace (*p))
+ p ++;
/* If the line is empty, then end any macro definition. */
if (last_token == tok_macdef && !*p)
- /* End of macro if the line is empty. */
- last_token = tok_nothing;
+ /* End of macro if the line is empty. */
+ last_token = tok_nothing;
/* If we are defining macros, then skip parsing the line. */
while (*p && last_token != tok_macdef)
- {
- /* Skip any whitespace. */
- while (*p && ISSPACE (*p))
- p ++;
-
- /* Discard end-of-line comments. */
- if (*p == '#')
- break;
-
- tok = p;
-
- /* Find the end of the token. */
- while (*p && !ISSPACE (*p))
- p ++;
-
- /* Null-terminate the token, if it isn't already. */
- if (*p)
- *p ++ = '\0';
-
- switch (last_token)
- {
- case tok_login:
- if (current)
- current->acc = xstrdup (tok);
- else
- premature_token = "login";
- break;
-
- case tok_machine:
- /* Start a new machine entry. */
- maybe_add_to_list (¤t, &retval);
- current->host = xstrdup (tok);
- break;
-
- case tok_password:
- if (current)
- current->passwd = xstrdup (tok);
- else
- premature_token = "password";
- break;
-
- /* We handle most of tok_macdef above. */
- case tok_macdef:
- if (!current)
- premature_token = "macdef";
- break;
-
- /* We don't handle the account keyword at all. */
- case tok_account:
- if (!current)
- premature_token = "account";
- break;
-
- /* We handle tok_nothing below this switch. */
- case tok_nothing:
- break;
- }
-
- if (premature_token)
- {
- fprintf (stderr, _("\
-%s: %s:%d: warning: \"%s\" token appears before any machine name\n"),
- exec_name, path, ln, premature_token);
- premature_token = NULL;
- }
-
- if (last_token != tok_nothing)
- /* We got a value, so reset the token state. */
- last_token = tok_nothing;
- else
- {
- /* Fetch the next token. */
- if (!strcmp (tok, "account"))
- last_token = tok_account;
- else if (!strcmp (tok, "default"))
- {
- maybe_add_to_list (¤t, &retval);
- }
- else if (!strcmp (tok, "login"))
- last_token = tok_login;
-
- else if (!strcmp (tok, "macdef"))
- last_token = tok_macdef;
-
- else if (!strcmp (tok, "machine"))
- last_token = tok_machine;
-
- else if (!strcmp (tok, "password"))
- last_token = tok_password;
-
- else
- fprintf (stderr, _("%s: %s:%d: unknown token \"%s\"\n"),
- exec_name, path, ln, tok);
- }
- }
-
- free (line);
+ {
+ /* Skip any whitespace. */
+ while (*p && c_isspace (*p))
+ p ++;
+
+ /* Discard end-of-line comments; also, stop processing if
+ the above `while' merely skipped trailing whitespace. */
+ if (*p == '#' || !*p)
+ break;
+
+ /* If the token starts with quotation mark, note this fact,
+ and squash the quotation character */
+ if (*p == '"'){
+ qmark = 1;
+ shift_left (p);
+ }
+
+ tok = p;
+
+ /* Find the end of the token, handling quotes and escapes. */
+ while (*p && (qmark ? *p != '"' : !c_isspace (*p))){
+ if (*p == '\\')
+ shift_left (p);
+ p ++;
+ }
+
+ /* If field was quoted, squash the trailing quotation mark
+ and reset qmark flag. */
+ if (qmark)
+ {
+ shift_left (p);
+ qmark = 0;
+ }
+
+ /* Null-terminate the token, if it isn't already. */
+ if (*p)
+ *p ++ = '\0';
+
+ switch (last_token)
+ {
+ case tok_login:
+ if (current)
+ current->acc = xstrdup (tok);
+ else
+ premature_token = "login";
+ break;
+
+ case tok_machine:
+ /* Start a new machine entry. */
+ maybe_add_to_list (¤t, &retval);
+ current->host = xstrdup (tok);
+ break;
+
+ case tok_password:
+ if (current)
+ current->passwd = xstrdup (tok);
+ else
+ premature_token = "password";
+ break;
+
+ /* We handle most of tok_macdef above. */
+ case tok_macdef:
+ if (!current)
+ premature_token = "macdef";
+ break;
+
+ /* We don't handle the account keyword at all. */
+ case tok_account:
+ if (!current)
+ premature_token = "account";
+ break;
+
+ /* We handle tok_nothing below this switch. */
+ case tok_nothing:
+ break;
+ }
+
+ if (premature_token)
+ {
+ fprintf (stderr, _("\
+%s: %s:%d: warning: %s token appears before any machine name\n"),
+ exec_name, path, ln, quote (premature_token));
+ premature_token = NULL;
+ }
+
+ if (last_token != tok_nothing)
+ /* We got a value, so reset the token state. */
+ last_token = tok_nothing;
+ else
+ {
+ /* Fetch the next token. */
+ if (!strcmp (tok, "account"))
+ last_token = tok_account;
+ else if (!strcmp (tok, "default"))
+ {
+ maybe_add_to_list (¤t, &retval);
+ }
+ else if (!strcmp (tok, "login"))
+ last_token = tok_login;
+
+ else if (!strcmp (tok, "macdef"))
+ last_token = tok_macdef;
+
+ else if (!strcmp (tok, "machine"))
+ last_token = tok_machine;
+
+ else if (!strcmp (tok, "password"))
+ last_token = tok_password;
+
+ else
+ fprintf (stderr, _("%s: %s:%d: unknown token \"%s\"\n"),
+ exec_name, path, ln, tok);
+ }
+ }
}
+ xfree (line);
fclose (fp);
/* Finalize the last machine entry we found. */
maybe_add_to_list (¤t, &retval);
- free (current);
+ xfree (current);
/* Reverse the order of the list so that it appears in file order. */
current = retval;
while (l)
{
t = l->next;
- FREE_MAYBE (l->acc);
- FREE_MAYBE (l->passwd);
- FREE_MAYBE (l->host);
- free(l);
+ xfree_null (l->acc);
+ xfree_null (l->passwd);
+ xfree_null (l->host);
+ xfree (l);
l = t;
}
}
int
main (int argc, char **argv)
{
- struct stat sb;
+ struct_stat sb;
char *program_name, *file, *target;
acc_t *head, *a;
if (stat (file, &sb))
{
fprintf (stderr, _("%s: cannot stat %s: %s\n"), argv[0], file,
- strerror (errno));
+ strerror (errno));
exit (1);
}
{
/* Skip if we have a target and this isn't it. */
if (target && a->host && strcmp (target, a->host))
- {
- a = a->next;
- continue;
- }
+ {
+ a = a->next;
+ continue;
+ }
if (!target)
- {
- /* Print the host name if we have no target. */
- if (a->host)
- fputs (a->host, stdout);
- else
- fputs ("DEFAULT", stdout);
+ {
+ /* Print the host name if we have no target. */
+ if (a->host)
+ fputs (a->host, stdout);
+ else
+ fputs ("DEFAULT", stdout);
- fputc (' ', stdout);
- }
+ fputc (' ', stdout);
+ }
/* Print the account name. */
fputs (a->acc, stdout);
if (a->passwd)
- {
- /* Print the password, if there is any. */
- fputc (' ', stdout);
- fputs (a->passwd, stdout);
- }
+ {
+ /* Print the password, if there is any. */
+ fputc (' ', stdout);
+ fputs (a->passwd, stdout);
+ }
fputc ('\n', stdout);
/* Exit if we found the target. */
if (target)
- exit (0);
+ exit (0);
a = a->next;
}