Commit 3d23b985 authored by Richard M. Stallman's avatar Richard M. Stallman
Browse files

(xmalloc, xrealloc): Add casts.

(add_field): Handle <...> and "..." syntax.
(setup_files, get_keyword): Clean up parens and line breaks.
(args_size): Likewise.
parent c3724dc2
......@@ -170,7 +170,7 @@ static char *
xmalloc (size)
int size;
{
char *result = malloc (((unsigned) size));
char *result = (char *) malloc (((unsigned) size));
if (result == ((char *) NULL))
fatal ("virtual memory exhausted", 0);
return result;
......@@ -181,7 +181,7 @@ xrealloc (ptr, size)
char *ptr;
int size;
{
char *result = realloc (ptr, ((unsigned) size));
char *result = (char *) realloc (ptr, ((unsigned) size));
if (result == ((char *) NULL))
fatal ("virtual memory exhausted");
return result;
......@@ -232,6 +232,12 @@ readline (linebuffer, stream)
return p - buffer;
}
/* 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. */
char *
get_keyword (field, rest)
register char *field;
......@@ -243,18 +249,22 @@ get_keyword (field, rest)
ptr = &keyword[0];
c = *field++;
if ((isspace (c)) || (c == ':'))
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 = *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 = *field++;
if (c != ':')
return ((char *) NULL);
*rest = field;
return &keyword[0];
}
/* Nonzero if the string FIELD starts with a colon-terminated keyword. */
boolean
has_keyword (field)
char *field;
......@@ -263,6 +273,16 @@ has_keyword (field)
return (get_keyword (field, &ignored) != ((char *) NULL));
}
/* 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. */
char *
add_field (the_list, field, where)
line_list the_list;
......@@ -271,17 +291,48 @@ add_field (the_list, field, 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;
}
*where++ = ((c == ','||c=='>'||c=='<') ? ' ' : c);
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;
}
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;
......@@ -462,6 +513,10 @@ put_line (string)
#define mail_error error
/* 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. */
void
setup_files (the_list, field)
register line_list the_list;
......@@ -471,18 +526,18 @@ setup_files (the_list, field)
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))
......@@ -490,12 +545,16 @@ setup_files (the_list, field)
*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;
}
}
/* 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. */
int
args_size (the_header)
header the_header;
......@@ -507,9 +566,9 @@ args_size (the_header)
{
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;
......@@ -522,6 +581,12 @@ args_size (the_header)
return size;
}
/* 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. */
parse_header (the_header, where)
header the_header;
register char *where;
......@@ -549,6 +614,12 @@ parse_header (the_header, where)
return;
}
/* 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. */
header
read_header ()
{
......
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