/* Read and parse the .netrc file to get hosts, accounts, and passwords.
Copyright (C) 1996, 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/>.
+
+In addition, as a special exception, the Free Software Foundation
+gives permission to link the code of its release of Wget with the
+OpenSSL project's "OpenSSL" library (or with modified versions of it
+that use the same license as the "OpenSSL" library), and distribute
+the linked executables. You must obey the GNU General Public License
+in all respects for all of the code used other than "OpenSSL". If you
+modify this file, you may extend this exception to your version of the
+file, but you are not obligated to do so. If you do not wish to do
+so, delete this exception statement from your version. */
/* This file used to be kept in synch with the code in Fetchmail, but
the latter has diverged since. */
#endif
#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 "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
/* Find ~/.netrc. */
if (!processed_netrc)
{
- char *home = home_dir();
+ char *home = home_dir ();
netrc_list = NULL;
processed_netrc = 1;
if (home)
{
int err;
- struct stat buf;
+ 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);
+ xfree (home);
err = stat (path, &buf);
if (err == 0)
netrc_list = parse_netrc (path);
/* 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)
{
#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
+# define xrealloc realloc
+
+/* Read a line from FP. The function reallocs the storage as needed
+ to accomodate for any length of the line. Reallocs are done
storage exponentially, doubling the storage after each overflow to
- minimize the number of calls to realloc().
+ minimize the number of calls to realloc() and fgets(). The newline
+ character at the end of line is retained.
- 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
+ After end-of-file is encountered without anything being read, NULL
+ is returned. NULL is also returned on error. To distinguish
+ between these two cases, use the stdio function ferror(). */
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')
+ int length = 0;
+ int bufsize = 81;
+ char *line = xmalloc (bufsize);
+
+ while (fgets (line + length, bufsize - length, fp))
{
- if (i > bufsize - 1)
- line = (char *)xrealloc(line, (bufsize <<= 1));
- line[i++] = c;
+ length += strlen (line + length);
+ assert (length > 0);
+ if (line[length - 1] == '\n')
+ break;
+ /* fgets() guarantees to read the whole line, or to use up the
+ space we've given it. We can double the buffer
+ unconditionally. */
+ bufsize <<= 1;
+ line = xrealloc (line, bufsize);
}
- if (c == EOF && !i)
+ if (length == 0 || ferror (fp))
{
- free(line);
+ xfree (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';
+ if (length + 1 < bufsize)
+ /* Relieve the memory from our exponential greediness. We say
+ `length + 1' because the terminating \0 is not included in
+ LENGTH. We don't need to zero-terminate the string ourselves,
+ though, because fgets() does that. */
+ line = xrealloc (line, length + 1);
return line;
}
-
#endif /* STANDALONE */
/* Maybe add NEWENTRY to the account information list, LIST. NEWENTRY is
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
{
}
/* 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. */
null-terminated string once character to the left.
Used in processing \ and " constructs in the netrc file */
static void
-shift_left(char *string){
+shift_left(char *string)
+{
char *p;
for (p=string; *p; ++p)
parse_netrc (const char *path)
{
FILE *fp;
- char *line, *p, *tok, *premature_token;
+ char *line, *p, *tok;
+ const char *premature_token;
acc_t *current, *retval;
int ln, quote;
premature_token = NULL;
/* While there are lines in the file... */
- while ((line = read_whole_line (fp)))
+ while ((line = read_whole_line (fp)) != NULL)
{
ln ++;
p = line;
quote = 0;
+ /* Skip leading whitespace. */
+ while (*p && 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. */
while (*p && ISSPACE (*p))
p ++;
- /* Discard end-of-line comments. */
- if (*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,
p ++;
}
- /* if field was quoted, squash the trailing quotation mark */
+ /* If field was quoted, squash the trailing quotation mark
+ and reset quote flag. */
if (quote)
- shift_left(p);
+ {
+ shift_left (p);
+ quote = 0;
+ }
/* Null-terminate the token, if it isn't already. */
if (*p)
}
}
- free (line);
+ 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;
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