/* sendmail-like interface to /bin/mail for system V,
- Copyright (C) 1985 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1994, 1999, 2001-2011 Free Software Foundation, Inc.
+
+Author: Bill Rozas <jinx@martigny.ai.mit.edu>
+(according to ack.texi)
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+#define _XOPEN_SOURCE 500 /* for cuserid */
-#define NO_SHORTNAMES
-#include <../src/config.h>
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
-#if defined (BSD) && !defined (BSD4_1) && !defined (USE_FAKEMAIL)
+#if defined (BSD_SYSTEM) && !defined (USE_FAKEMAIL)
/* This program isnot used in BSD, so just avoid loader complaints. */
-main ()
+int
+main (void)
{
+ return 0;
}
#else /* not BSD 4.2 (or newer) */
#ifdef MSDOS
+int
main ()
{
+ return 0;
}
#else /* not MSDOS */
/* This conditional contains all the rest of the file. */
#undef static
#endif
-#ifdef read
-#undef read
-#undef write
-#undef open
-#undef close
+#ifdef WINDOWSNT
+#include "ntlib.h"
#endif
#include <stdio.h>
#include <ctype.h>
#include <time.h>
#include <pwd.h>
+#include <stdlib.h>
+
+/* This is to declare cuserid. */
+#include <unistd.h>
\f
/* Type definitions */
#define true 1
#define false 0
+#define TM_YEAR_BASE 1900
+
+/* Nonzero if TM_YEAR is a struct tm's tm_year value that causes
+ asctime to have well-defined behavior. */
+#ifndef TM_YEAR_IN_ASCTIME_RANGE
+# define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \
+ (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE)
+#endif
+
/* Various lists */
struct line_record
struct header_record *previous;
};
typedef struct header_record *header;
-
+
struct stream_record
{
FILE *handle;
- int (*action)();
+ int (*action)(FILE *);
struct stream_record *rest_streams;
};
typedef struct stream_record *stream_list;
#define MAIL_PROGRAM_NAME "/bin/mail"
#endif
-static char *my_name;
+static const char *my_name;
static char *the_date;
static char *the_user;
static line_list file_preface;
static stream_list the_streams;
static boolean no_problems = true;
-extern FILE *popen ();
-extern int fclose (), pclose ();
-extern char *malloc (), *realloc ();
+static void fatal (const char *s1) NO_RETURN;
#ifdef CURRENT_USER
-extern struct passwd *getpwuid ();
-extern unsigned short geteuid ();
static struct passwd *my_entry;
#define cuserid(s) \
(my_entry = getpwuid (((int) geteuid ())), \
/* Print error message. `s1' is printf control string, `s2' is arg for it. */
static void
-error (s1, s2)
- char *s1, *s2;
+error (const char *s1, const char *s2)
{
printf ("%s: ", my_name);
printf (s1, s2);
/* Print error message and exit. */
static void
-fatal (s1, s2)
- char *s1, *s2;
+fatal (const char *s1)
{
- error (s1, s2);
- exit (1);
+ error ("%s", s1);
+ exit (EXIT_FAILURE);
}
/* Like malloc but get fatal error if memory is exhausted. */
-static char *
-xmalloc (size)
- int size;
+static long *
+xmalloc (int size)
{
- char *result = malloc (((unsigned) size));
- if (result == ((char *) NULL))
- fatal ("virtual memory exhausted", 0);
+ long *result = (long *) malloc (((unsigned) size));
+ if (result == ((long *) NULL))
+ fatal ("virtual memory exhausted");
return result;
}
-static char *
-xrealloc (ptr, size)
- char *ptr;
- int size;
+static long *
+xrealloc (long int *ptr, int size)
{
- char *result = realloc (ptr, ((unsigned) size));
- if (result == ((char *) NULL))
+ long *result = (long *) realloc (ptr, ((unsigned) size));
+ if (result == ((long *) NULL))
fatal ("virtual memory exhausted");
return result;
}
\f
/* Initialize a linebuffer for use */
-void
-init_linebuffer (linebuffer)
- struct linebuffer *linebuffer;
+static void
+init_linebuffer (struct linebuffer *linebuffer)
{
linebuffer->size = INITIAL_LINE_SIZE;
linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE));
}
/* Read a line of text from `stream' into `linebuffer'.
- * Return the length of the line.
- */
+ Return the length of the line. */
-long
-readline (linebuffer, stream)
- struct linebuffer *linebuffer;
- FILE *stream;
+static long
+readline (struct linebuffer *linebuffer, FILE *stream)
{
char *buffer = linebuffer->buffer;
char *p = linebuffer->buffer;
if (p == end)
{
linebuffer->size *= 2;
- buffer = ((char *) xrealloc (buffer, linebuffer->size));
+ buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size));
p = buffer + (p - linebuffer->buffer);
end = buffer + linebuffer->size;
linebuffer->buffer = buffer;
return p - buffer;
}
\f
-char *
-get_keyword (field, rest)
- register char *field;
- char **rest;
+/* Extract a colon-terminated keyword from the string FIELD.
+ Return that keyword as a string stored in a static buffer.
+ Store the address of the rest of the string into *REST.
+
+ If there is no keyword, return NULL and don't alter *REST. */
+
+static char *
+get_keyword (register char *field, char **rest)
{
static char keyword[KEYWORD_SIZE];
register char *ptr;
- register char c;
+ register int c;
ptr = &keyword[0];
- c = *field++;
- if ((isspace (c)) || (c == ':'))
+ c = (unsigned char) *field++;
+ if (isspace (c) || c == ':')
return ((char *) NULL);
- *ptr++ = ((islower (c)) ? (toupper (c)) : c);
- while (((c = *field++) != ':') && (!(isspace (c))))
- *ptr++ = ((islower (c)) ? (toupper (c)) : c);
+ *ptr++ = (islower (c) ? toupper (c) : c);
+ while (((c = (unsigned char) *field++) != ':') && ! isspace (c))
+ *ptr++ = (islower (c) ? toupper (c) : c);
*ptr++ = '\0';
- while (isspace (c)) c = *field++;
- if (c != ':') return ((char *) NULL);
+ while (isspace (c))
+ c = (unsigned char) *field++;
+ if (c != ':')
+ return ((char *) NULL);
*rest = field;
return &keyword[0];
}
-boolean
-has_keyword (field)
- char *field;
+/* Nonzero if the string FIELD starts with a colon-terminated keyword. */
+
+static boolean
+has_keyword (char *field)
{
char *ignored;
return (get_keyword (field, &ignored) != ((char *) NULL));
}
-char *
-add_field (the_list, field, where)
- line_list the_list;
- register char *field, *where;
+/* Store the string FIELD, followed by any lines in THE_LIST,
+ into the buffer WHERE.
+ Concatenate lines, putting just a space between them.
+ Delete everything contained in parentheses.
+ When a recipient name contains <...>, we discard
+ everything except what is inside the <...>.
+
+ We don't pay attention to overflowing WHERE;
+ the caller has to make it big enough. */
+
+static char *
+add_field (line_list the_list, register char *field, register char *where)
{
register char c;
while (true)
{
+ char *this_recipient_where;
+ int in_quotes = 0;
+
*where++ = ' ';
+ this_recipient_where = where;
+
while ((c = *field++) != '\0')
{
- if (c == '(')
+ if (c == '\\')
+ *where++ = c;
+ else if (c == '"')
+ {
+ in_quotes = ! in_quotes;
+ *where++ = c;
+ }
+ else if (in_quotes)
+ *where++ = c;
+ else if (c == '(')
{
while (*field && *field != ')') ++field;
- if (! (*field++)) break; /* no closer */
- if (! (*field)) break; /* closerNULL */
- c = *field;
+ if (! (*field++)) break; /* no close */
+ continue;
+ }
+ else if (c == ',')
+ {
+ *where++ = ' ';
+ /* When we get to the end of one recipient,
+ don't discard it if the next one has <...>. */
+ this_recipient_where = where;
}
- *where++ = ((c == ','||c=='>'||c=='<') ? ' ' : c);
+ else if (c == '<')
+ /* Discard everything we got before the `<'. */
+ where = this_recipient_where;
+ else if (c == '>')
+ /* Discard the rest of this name that follows the `>'. */
+ {
+ while (*field && *field != ',') ++field;
+ if (! (*field++)) break; /* no comma */
+ continue;
+ }
+ else
+ *where++ = c;
}
if (the_list == NIL) break;
field = the_list->string;
return where;
}
\f
-line_list
-make_file_preface ()
+static line_list
+make_file_preface (void)
{
char *the_string, *temp;
long idiotic_interface;
+ struct tm *tm;
long prefix_length;
long user_length;
long date_length;
prefix_length = strlen (FROM_PREFIX);
time (&idiotic_interface);
- the_date = ctime (&idiotic_interface);
+ /* Convert to a string, checking for out-of-range time stamps.
+ Don't use 'ctime', as that might dump core if the hardware clock
+ is set to a bizarre value. */
+ tm = localtime (&idiotic_interface);
+ if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year)
+ && (the_date = asctime (tm))))
+ fatal ("current time is out of range");
/* the_date has an unwanted newline at the end */
date_length = strlen (the_date) - 1;
the_date[date_length] = '\0';
user_length = strlen (temp);
the_user = alloc_string (user_length + 1);
strcpy (the_user, temp);
- the_string = alloc_string (3 + prefix_length +
- user_length +
- date_length);
+ the_string = alloc_string (3 + prefix_length
+ + user_length
+ + date_length);
temp = the_string;
strcpy (temp, FROM_PREFIX);
temp = &temp[prefix_length];
return result;
}
-void
-write_line_list (the_list, the_stream)
- register line_list the_list;
- FILE *the_stream;
+static void
+write_line_list (register line_list the_list, FILE *the_stream)
{
for ( ;
the_list != ((line_list) NULL) ;
return;
}
\f
-int
-close_the_streams ()
+static int
+close_the_streams (void)
{
register stream_list rem;
for (rem = the_streams;
rem != ((stream_list) NULL);
rem = rem->rest_streams)
- no_problems = (no_problems &&
- ((*rem->action) (rem->handle) == 0));
+ if (no_problems && (*rem->action) (rem->handle) != 0)
+ error ("output error", NULL);
the_streams = ((stream_list) NULL);
- return (no_problems ? 0 : 1);
+ return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE);
}
-void
-add_a_stream (the_stream, closing_action)
- FILE *the_stream;
- int (*closing_action)();
+static void
+add_a_stream (FILE *the_stream, int (*closing_action) (FILE *))
{
stream_list old = the_streams;
the_streams = new_stream ();
return;
}
-int
-my_fclose (the_file)
- FILE *the_file;
+static int
+my_fclose (FILE *the_file)
{
putc ('\n', the_file);
fflush (the_file);
+ if (ferror (the_file))
+ return EOF;
return fclose (the_file);
}
-boolean
-open_a_file (name)
- char *name;
+static boolean
+open_a_file (char *name)
{
FILE *the_stream = fopen (name, "a");
if (the_stream != ((FILE *) NULL))
return false;
}
-void
-put_string (s)
- char *s;
+static void
+put_string (char *s)
{
register stream_list rem;
for (rem = the_streams;
return;
}
-void
-put_line (string)
- char *string;
+static void
+put_line (const char *string)
{
register stream_list rem;
for (rem = the_streams;
rem != ((stream_list) NULL);
rem = rem->rest_streams)
{
- char *s = string;
+ const char *s = string;
int column = 0;
/* Divide STRING into lines. */
while (*s != 0)
{
- char *breakpos;
+ const char *breakpos;
/* Find the last char that fits. */
for (breakpos = s; *breakpos && column < 78; ++breakpos)
\f
#define mail_error error
-void
-setup_files (the_list, field)
- register line_list the_list;
- register char *field;
+/* Handle an FCC field. FIELD is the text of the first line (after
+ the header name), and THE_LIST holds the continuation lines if any.
+ Call open_a_file for each file. */
+
+static void
+setup_files (register line_list the_list, register char *field)
{
register char *start;
register char c;
while (true)
{
- while (((c = *field) != '\0') &&
- ((c == ' ') ||
- (c == '\t') ||
- (c == ',')))
+ while (((c = *field) != '\0')
+ && (c == ' '
+ || c == '\t'
+ || c == ','))
field += 1;
if (c != '\0')
{
start = field;
- while (((c = *field) != '\0') &&
- (c != ' ') &&
- (c != '\t') &&
- (c != ','))
+ while (((c = *field) != '\0')
+ && c != ' '
+ && c != '\t'
+ && c != ',')
field += 1;
*field = '\0';
if (!open_a_file (start))
*field = c;
if (c != '\0') continue;
}
- if (the_list == ((line_list) NULL)) return;
+ if (the_list == ((line_list) NULL))
+ return;
field = the_list->string;
the_list = the_list->continuation;
}
}
\f
-int
-args_size (the_header)
- header the_header;
+/* Compute the total size of all recipient names stored in THE_HEADER.
+ The result says how big to make the buffer to pass to parse_header. */
+
+static int
+args_size (header the_header)
{
register header old = the_header;
register line_list rem;
{
char *field;
register char *keyword = get_keyword (the_header->text->string, &field);
- if ((strcmp (keyword, "TO") == 0) ||
- (strcmp (keyword, "CC") == 0) ||
- (strcmp (keyword, "BCC") == 0))
+ if ((strcmp (keyword, "TO") == 0)
+ || (strcmp (keyword, "CC") == 0)
+ || (strcmp (keyword, "BCC") == 0))
{
size += 1 + strlen (field);
for (rem = the_header->text->continuation;
return size;
}
-parse_header (the_header, where)
- header the_header;
- register char *where;
+/* Scan the header described by the lists THE_HEADER,
+ and put all recipient names into the buffer WHERE.
+ Precede each recipient name with a space.
+
+ Also, if the header has any FCC fields, call setup_files for each one. */
+
+static void
+parse_header (header the_header, register char *where)
{
register header old = the_header;
do
*where = '\0';
return;
}
-\f
-header
-read_header ()
+\f
+/* Read lines from the input until we get a blank line.
+ Create a list of `header' objects, one for each header field,
+ each of which points to a list of `line_list' objects,
+ one for each line in that field.
+ Continuation lines are grouped in the headers they continue. */
+
+static header
+read_header (void)
{
register header the_header = ((header) NULL);
register line_list *next_line = ((line_list *) NULL);
if (next_line == ((line_list *) NULL))
{
/* Not a valid header */
- exit (1);
+ exit (EXIT_FAILURE);
}
*next_line = new_list ();
(*next_line)->string = alloc_string (length);
} while (true);
+ if (! the_header)
+ fatal ("input message has no header");
return the_header->next;
}
\f
-void
-write_header (the_header)
- header the_header;
+static void
+write_header (header the_header)
{
register header old = the_header;
do
return;
}
\f
-void
-main (argc, argv)
- int argc;
- char **argv;
+int
+main (int argc, char **argv)
{
char *command_line;
header the_header;
long name_length;
- char *mail_program_name;
+ const char *mail_program_name;
char buf[BUFLEN + 1];
register int size;
FILE *the_pipe;
- extern char *getenv ();
-
mail_program_name = getenv ("FAKEMAILER");
if (!(mail_program_name && *mail_program_name))
mail_program_name = MAIL_PROGRAM_NAME;
command_line = alloc_string (name_length + args_size (the_header));
strcpy (command_line, mail_program_name);
parse_header (the_header, &command_line[name_length]);
-
+
the_pipe = popen (command_line, "w");
if (the_pipe == ((FILE *) NULL))
fatal ("cannot open pipe to real mailer");
put_string (buf);
}
+ if (no_problems && (ferror (stdin) || fclose (stdin) != 0))
+ error ("input error", NULL);
+
exit (close_the_streams ());
}
#endif /* not MSDOS */
#endif /* not BSD 4.2 (or newer) */
+
+
+/* fakemail.c ends here */
HCoop / bpt / emacs.git / blobdiff