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sendmail: support address lists

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Headers To:, Cc: and Bcc: may have a list of comma-separated
addresses. Add support for that. Commas inside double quotes are ignored.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Aaro Koskinen 2013-02-25 00:45:09 +02:00 committed by Denys Vlasenko
parent 06ad964ae6
commit a8ba0a0d0c
1 changed files with 29 additions and 4 deletions
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33
mailutils/sendmail.c
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@ -144,6 +144,33 @@ static void rcptto(const char *s)
bb_error_msg("Bad recipient: <%s>", s);
}
// send to a list of comma separated addresses
static void rcptto_list(const char *_str)
{
char *str = xstrdup(_str);
int len = strlen(str);
int in_quote = 0;
char *s = str;
char prev = 0;
int pos;
for (pos = 0; pos < len; pos++) {
char ch = str[pos];
if (ch == '"' && prev != '\\') {
in_quote = !in_quote;
} else if (!in_quote && ch == ',') {
str[pos] = '\0';
rcptto(angle_address(s));
s = str + pos + 1;
}
prev = ch;
}
if (prev != ',')
rcptto(angle_address(s));
free(str);
}
int sendmail_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int sendmail_main(int argc UNUSED_PARAM, char **argv)
{
@ -317,14 +344,12 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv)
// To: or Cc: headers add recipients
if (opts & OPT_t) {
if (0 == strncasecmp("To:", s, 3) || 0 == strncasecmp("Bcc:" + 1, s, 3)) {
char *r = xstrdup(s+3);
rcptto(angle_address(r));
free(r);
rcptto_list(s+3);
goto addheader;
}
// Bcc: header adds blind copy (hidden) recipient
if (0 == strncasecmp("Bcc:", s, 4)) {
rcptto(angle_address(s+4));
rcptto_list(s+4);
free(s);
continue; // N.B. Bcc: vanishes from headers!
}