/* 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
(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
+along with Wget; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* This file used to be kept in synch with the code in Fetchmail, but
#endif
#include <stdio.h>
-#include <ctype.h>
#include <stdlib.h>
#ifdef HAVE_STRING_H
# include <string.h>
/* Find ~/.netrc. */
if (!processed_netrc)
{
- char *home = home_dir();
+ char *home = home_dir ();
netrc_list = NULL;
processed_netrc = 1;
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 = (char *)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 (a->host);
+ xfree (a->acc);
+ xfree (a->passwd);
}
else
{
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 *
FILE *fp;
char *line, *p, *tok, *premature_token;
acc_t *current, *retval;
- int ln;
+ int ln, quote;
/* The latest token we've seen in the file. */
enum
/* Parse the line. */
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)
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,
+ and squash the quotation character */
+ if (*p == '"'){
+ quote = 1;
+ shift_left (p);
+ }
+
tok = p;
- /* Find the end of the token. */
- while (*p && !ISSPACE (*p))
+ /* Find the end of the token, handling quotes and escapes. */
+ while (*p && (quote ? *p != '"' : !ISSPACE (*p))){
+ if (*p == '\\')
+ shift_left (p);
p ++;
+ }
+
+ /* if field was quoted, squash the trailing quotation mark */
+ if (quote)
+ shift_left(p);
/* 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;
FREE_MAYBE (l->acc);
FREE_MAYBE (l->passwd);
FREE_MAYBE (l->host);
- free(l);
+ xfree (l);
l = t;
}
}
projects / wget / blobdiff