-
/*
- * mts.c -- definitions for the mail transport system
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- */
+** mts.c -- definitions for the mail transport system
+**
+** This code is Copyright (c) 2002, by the authors of nmh. See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
#include <h/mh.h> /* for snprintf() */
#include <h/nmh.h>
#include <h/utils.h>
-
-#define nmhetcdir(file) NMHETCDIR#file
-
#include <ctype.h>
#include <stdio.h>
#include <h/mts.h>
# include <sys/utsname.h>
#endif
-#define NOTOK (-1)
-#define OK 0
+#define NOTOK (-1)
+#define OK 0
/*
- * static prototypes
- */
-static char *tailor_value (unsigned char *);
-static void getuserinfo (void);
+** static prototypes
+*/
+static char *tailor_value(unsigned char *);
+static void getuserinfo(void);
static const char *get_mtsconf_pathname(void);
static const char *get_mtsuserconf_pathname(void);
-static void mts_read_conf_file (FILE *fp);
+static void mts_read_conf_file(FILE *fp);
/*
- * *mmdfldir and *uucpldir are the maildrop directories. If maildrops
- * are kept in the user's home directory, then these should be empty
- * strings. In this case, the appropriate ...lfil array should contain
- * the name of the file in the user's home directory. Usually, this is
- * something like ".mail".
- */
+** *mmdfldir and *uucpldir are the maildrop directories. If maildrops
+** are kept in the user's home directory, then these should be empty
+** strings. In this case, the appropriate ...lfil array should contain
+** the name of the file in the user's home directory. Usually, this is
+** something like ".mail".
+*/
/*
- * nmh mail transport interface customization file
- */
-static char *mtsconf = nmhetcdir(/mts.conf);
-
-static char *localname = "";
-static char *localdomain = "";
-static char *systemname = "";
+** nmh mail transport interface customization file
+*/
+static char *mtsconf = NMHETCDIR"/mts.conf";
char *mmdfldir = MAILSPOOL;
char *mmdflfil = "";
static char fullname[BUFSIZ];
/* Variables for username masquerading: */
- boolean draft_from_masquerading = FALSE; /* also used from post.c */
+boolean draft_from_masquerading = FALSE;
static boolean mmailid_masquerading = FALSE;
- boolean username_extension_masquerading = FALSE; /* " from addrsbr.c */
-static char* masquerade = "";
-
-/*
- * MTS specific variables
- */
-#if defined(SMTPMTS)
-static char *sm_method = "smtp";
-int sm_mts = MTS_SMTP;
-char *hostable = nmhetcdir(/hosts);
-char *sendmail = SENDMAILPATH;
-#endif
+boolean username_extension_masquerading = FALSE; /* " from addrsbr.c */
+static char* masquerade = "";
/*
- * SMTP/POP stuff
- */
-char *clientname = NULL;
-char *servers = "localhost \01localnet";
-char *pophost = "";
-
-/*
- * Global MailDelivery file
- */
-char *maildelivery = nmhetcdir(/maildelivery);
+** Global MailDelivery file
+*/
+char *maildelivery = NMHETCDIR"/maildelivery";
/*
- * Aliasing Facility (doesn't belong here)
- */
+** Aliasing Facility (doesn't belong here)
+*/
int Everyone = NOTOK;
static char *everyone = "-1";
char *NoShell = "";
/*
- * Customize the MTS settings for nmh by adjusting
- * the file mts.conf in the nmh etc directory.
- */
+** Customize the MTS settings for nmh by adjusting
+** the file mts.conf in the nmh etc directory.
+*/
struct bind {
- char *keyword;
- char **value;
+ char *keyword;
+ char **value;
};
static struct bind binds[] = {
- { "localname", &localname },
- { "localdomain", &localdomain },
- { "systemname", &systemname },
- { "mmdfldir", &mmdfldir },
- { "mmdflfil", &mmdflfil },
- { "uucpldir", &uucpldir },
- { "uucplfil", &uucplfil },
- { "mmdelim1", &mmdlm1 },
- { "mmdelim2", &mmdlm2 },
- { "masquerade", &masquerade },
-
-#if defined(SMTPMTS)
- { "mts", &sm_method },
- { "hostable", &hostable },
- { "sendmail", &sendmail },
-#endif
-
- { "clientname", &clientname },
- { "servers", &servers },
- { "pophost", &pophost },
-
- { "maildelivery", &maildelivery },
- { "everyone", &everyone },
- { "noshell", &NoShell },
- { NULL, NULL }
+ { "mmdfldir", &mmdfldir },
+ { "mmdflfil", &mmdflfil },
+ { "uucpldir", &uucpldir },
+ { "uucplfil", &uucplfil },
+ { "mmdelim1", &mmdlm1 },
+ { "mmdelim2", &mmdlm2 },
+ { "masquerade", &masquerade },
+ { "maildelivery", &maildelivery },
+ { "everyone", &everyone },
+ { "noshell", &NoShell },
+ { NULL, NULL }
};
/*
- * Read the configuration file for the nmh interface
- * to the mail transport system (MTS).
- */
+** Read the configuration file for the nmh interface
+** to the mail transport system (MTS).
+*/
void
-mts_init (char *name)
+mts_init(char *name)
{
- const char *cp;
- FILE *fp;
- static int inited = 0;
+ const char *cp;
+ FILE *fp;
+ static int inited = 0;
+
+ if (inited++ || (fp = fopen(get_mtsconf_pathname(), "r")) == NULL)
+ return;
+ mts_read_conf_file(fp);
+ fclose(fp);
+
+ cp = get_mtsuserconf_pathname();
+ if (cp != NULL &&
+ ((fp = fopen(get_mtsuserconf_pathname(), "r")) != NULL)) {
+ mts_read_conf_file(fp);
+ fclose(fp);
+ }
- if (inited++ || (fp = fopen (get_mtsconf_pathname(), "r")) == NULL)
- return;
- mts_read_conf_file(fp);
- fclose (fp);
-
- cp = get_mtsuserconf_pathname();
- if (cp != NULL &&
- ((fp = fopen (get_mtsuserconf_pathname(), "r")) != NULL)) {
- mts_read_conf_file(fp);
- fclose (fp);
- }
-
- Everyone = atoi (everyone);
-
- if (strstr(masquerade, "draft_from") != NULL)
- draft_from_masquerading = TRUE;
-
- if (strstr(masquerade, "mmailid") != NULL)
- mmailid_masquerading = TRUE;
-
- if (strstr(masquerade, "username_extension") != NULL)
- username_extension_masquerading = TRUE;
-
-#ifdef SMTPMTS
- if (strcmp(sm_method, "smtp") == 0)
- sm_mts = MTS_SMTP;
- else if (strcmp(sm_method, "sendmail") == 0)
- sm_mts = MTS_SENDMAIL;
- else {
- advise(NULL, "unsupported \"mts\" value in mts.conf: %s", sm_method);
- sm_mts = MTS_SMTP;
- }
-#endif
+ Everyone = atoi(everyone);
+
+ if (strstr(masquerade, "draft_from") != NULL)
+ draft_from_masquerading = TRUE;
+
+ if (strstr(masquerade, "mmailid") != NULL)
+ mmailid_masquerading = TRUE;
+
+ if (strstr(masquerade, "username_extension") != NULL)
+ username_extension_masquerading = TRUE;
}
-#define QUOTE '\\'
+#define QUOTE '\\'
/*
- * Convert escaped values, malloc some new space,
- * and copy string to malloc'ed memory.
- */
+** Convert escaped values, malloc some new space,
+** and copy string to malloc'ed memory.
+*/
static char *
-tailor_value (unsigned char *s)
+tailor_value(unsigned char *s)
{
- int i, r;
- char *bp;
- char buffer[BUFSIZ];
- size_t len;
-
- for (bp = buffer; *s; bp++, s++) {
- if (*s != QUOTE) {
- *bp = *s;
- } else {
- switch (*++s) {
- case 'b': *bp = '\b'; break;
- case 'f': *bp = '\f'; break;
- case 'n': *bp = '\n'; break;
- case 't': *bp = '\t'; break;
-
- case 0: s--;
- case QUOTE:
- *bp = QUOTE;
- break;
-
- default:
- if (!isdigit (*s)) {
- *bp++ = QUOTE;
+ int i, r;
+ char *bp;
+ char buffer[BUFSIZ];
+ size_t len;
+
+ for (bp = buffer; *s; bp++, s++) {
+ if (*s != QUOTE) {
*bp = *s;
- }
- r = *s != '0' ? 10 : 8;
- for (i = 0; isdigit (*s); s++)
- i = i * r + *s - '0';
- s--;
- *bp = toascii (i);
- break;
- }
+ } else {
+ switch (*++s) {
+ case 'b': *bp = '\b'; break;
+ case 'f': *bp = '\f'; break;
+ case 'n': *bp = '\n'; break;
+ case 't': *bp = '\t'; break;
+
+ case 0: s--;
+ case QUOTE:
+ *bp = QUOTE;
+ break;
+
+ default:
+ if (!isdigit(*s)) {
+ *bp++ = QUOTE;
+ *bp = *s;
+ }
+ r = *s != '0' ? 10 : 8;
+ for (i = 0; isdigit(*s); s++)
+ i = i * r + *s - '0';
+ s--;
+ *bp = toascii(i);
+ break;
+ }
+ }
}
- }
- *bp = 0;
+ *bp = 0;
- len = strlen (buffer) + 1;
- bp = mh_xmalloc (len);
- memcpy (bp, buffer, len);
+ len = strlen(buffer) + 1;
+ bp = mh_xmalloc(len);
+ memcpy(bp, buffer, len);
- return bp;
+ return bp;
}
/*
- * Get the fully qualified name of the local host.
- */
+** Get the fully qualified name of the local host.
+*/
char *
-LocalName (void)
+LocalName(void)
{
- static char buffer[BUFSIZ] = "";
- struct addrinfo hints, *res;
+ static char buffer[BUFSIZ] = "";
+ struct addrinfo hints, *res;
#ifdef HAVE_UNAME
- struct utsname name;
+ struct utsname name;
#endif
- /* check if we have cached the local name */
- if (buffer[0])
- return buffer;
+ /* check if we have cached the local name */
+ if (buffer[0])
+ return buffer;
- mts_init ("mts");
+ mts_init("mts");
- /* check if the mts.conf file specifies a "localname" */
- if (*localname) {
- strncpy (buffer, localname, sizeof(buffer));
- } else {
memset(buffer, 0, sizeof(buffer));
#ifdef HAVE_UNAME
/* first get our local name */
- uname (&name);
- strncpy (buffer, name.nodename, sizeof(buffer) - 1);
+ uname(&name);
+ strncpy(buffer, name.nodename, sizeof(buffer) - 1);
#else
/* first get our local name */
- gethostname (buffer, sizeof(buffer) - 1);
+ gethostname(buffer, sizeof(buffer) - 1);
#endif
/* now fully qualify our name */
hints.ai_flags = AI_CANONNAME;
hints.ai_family = PF_UNSPEC;
if (getaddrinfo(buffer, NULL, &hints, &res) == 0) {
- strncpy(buffer, res->ai_canonname, sizeof(buffer) - 1);
- freeaddrinfo(res);
+ strncpy(buffer, res->ai_canonname, sizeof(buffer) - 1);
+ freeaddrinfo(res);
}
- }
-
- /*
- * If the mts.conf file specifies a "localdomain",
- * we append that now. This should rarely be needed.
- */
- if (*localdomain) {
- strcat (buffer, ".");
- strcat (buffer, localdomain);
- }
-
- return buffer;
+
+ return buffer;
}
/*
- * This is only for UUCP mail. It gets the hostname
- * as part of the UUCP "domain".
- */
+** This is only for UUCP mail. It gets the hostname
+** as part of the UUCP "domain".
+*/
char *
-SystemName (void)
+SystemName(void)
{
- static char buffer[BUFSIZ] = "";
+ static char buffer[BUFSIZ] = "";
#ifdef HAVE_UNAME
- struct utsname name;
+ struct utsname name;
#endif
- /* check if we have cached the system name */
- if (buffer[0])
- return buffer;
-
- mts_init ("mts");
+ /* check if we have cached the system name */
+ if (buffer[0])
+ return buffer;
- /* check if mts.conf file specifies a "systemname" */
- if (*systemname) {
- strncpy (buffer, systemname, sizeof(buffer));
- return buffer;
- }
+ mts_init("mts");
#ifdef HAVE_UNAME
- uname (&name);
- strncpy (buffer, name.nodename, sizeof(buffer));
+ uname(&name);
+ strncpy(buffer, name.nodename, sizeof(buffer));
#else
- gethostname (buffer, sizeof(buffer));
+ gethostname(buffer, sizeof(buffer));
#endif
- return buffer;
+ return buffer;
}
/*
- * Get the username of current user
- */
+** Get the username of current user
+*/
char *
-getusername (void)
+getusername(void)
{
- if (username[0] == '\0')
- getuserinfo();
+ if (username[0] == '\0')
+ getuserinfo();
- return username;
+ return username;
}
/*
- * Get full name of current user (typically from GECOS
- * field of password file).
- */
+** Get full name of current user (typically from GECOS
+** field of password file).
+*/
char *
-getfullname (void)
+getfullname(void)
{
- if (username[0] == '\0')
- getuserinfo();
+ if (username[0] == '\0')
+ getuserinfo();
- return fullname;
+ return fullname;
}
/*
- * Find the user's username and full name, and cache them.
- * Also, handle "mmailid" username masquerading controlled from the GECOS field
- * of the passwd file.
- */
+** Find the user's username and full name, and cache them.
+** Also, handle "mmailid" username masquerading controlled from the GECOS field
+** of the passwd file.
+*/
static void
-getuserinfo (void)
+getuserinfo(void)
{
- register unsigned char *cp;
- register char *np;
- register struct passwd *pw;
-
- if ((pw = getpwuid (getuid ())) == NULL
- || pw->pw_name == NULL
- || *pw->pw_name == '\0') {
- strncpy (username, "unknown", sizeof(username));
- snprintf (fullname, sizeof(fullname), "The Unknown User-ID (%d)",
- (int) getuid ());
- return;
- }
+ register unsigned char *cp;
+ register char *np;
+ register struct passwd *pw;
+
+ if ((pw = getpwuid(getuid())) == NULL
+ || pw->pw_name == NULL
+ || *pw->pw_name == '\0') {
+ strncpy(username, "unknown", sizeof(username));
+ snprintf(fullname, sizeof(fullname), "The Unknown User-ID (%d)",
+ (int) getuid());
+ return;
+ }
- np = pw->pw_gecos;
+ np = pw->pw_gecos;
- /* Get the user's real name from the GECOS field. Stop once we hit a ',',
- which some OSes use to separate other 'finger' information in the GECOS
- field, like phone number. Also, if mmailid masquerading is turned on due
- to "mmailid" appearing on the "masquerade:" line of mts.conf, stop if we
- hit a '<' (which should precede any ','s). */
+ /*
+ ** Get the user's real name from the GECOS field. Stop once
+ ** we hit a ',', which some OSes use to separate other 'finger'
+ ** information in the GECOS field, like phone number. Also, if
+ ** mmailid masquerading is turned on due to "mmailid" appearing
+ ** on the "masquerade:" line of mts.conf, stop if we hit a '<'
+ ** (which should precede any ','s).
+ */
#ifndef BSD42
- if (mmailid_masquerading)
- /* Stop at ',' or '<'. */
- for (cp = fullname; *np != '\0' && *np != ',' && *np != '<';
- *cp++ = *np++)
- continue;
- else
- /* Allow '<' as a legal character of the user's name. This code is
- basically a duplicate of the code above the "else" -- we don't
- collapse it down to one copy and put the mmailid_masquerading check
- inside the loop with "(x ? y : z)" because that's inefficient and the
- value'll never change while it's in there. */
- for (cp = fullname; *np != '\0' && *np != ',';
- *cp++ = *np++)
- continue;
+ if (mmailid_masquerading)
+ /* Stop at ',' or '<'. */
+ for (cp = fullname; *np != '\0' && *np != ',' && *np != '<';
+ *cp++ = *np++)
+ continue;
+ else
+ /*
+ ** Allow '<' as a legal character of the user's name.
+ ** This code is basically a duplicate of the code above the
+ ** "else" -- we don't collapse it down to one copy and put
+ ** the mmailid_masquerading check inside the loop with "(x
+ ** ? y : z)" because that's inefficient and the value'll
+ ** never change while it's in there.
+ */
+ for (cp = fullname; *np != '\0' && *np != ','; *cp++ = *np++)
+ continue;
#else /* BSD42 */
- /* On BSD(-derived) systems, the system utilities that deal with the GECOS
- field (finger, mail, sendmail, etc.) translate any '&' character in it to
- the login name, with the first letter capitalized. So, for instance,
- fingering a user "bob" with the GECOS field "& Jones" would reveal him to
- be "In real life: Bob Jones". Surprisingly, though, the OS doesn't do
- the translation for you, so we have to do it manually here. */
- if (mmailid_masquerading)
- /* Stop at ',' or '<'. */
- for (cp = fullname;
- *np != '\0' && *np != ',' && *np != '<';) {
- if (*np == '&') { /* blech! */
- strcpy (cp, pw->pw_name);
- *cp = toupper(*cp);
- while (*cp)
- cp++;
- np++;
- } else {
- *cp++ = *np++;
- }
- }
- else
- /* Allow '<' as a legal character of the user's name. This code is
- basically a duplicate of the code above the "else" -- we don't
- collapse it down to one copy and put the mmailid_masquerading check
- inside the loop with "(x ? y : z)" because that's inefficient and the
- value'll never change while it's in there. */
- for (cp = fullname;
- *np != '\0' && *np != ',';) {
- if (*np == '&') { /* blech! */
- strcpy (cp, pw->pw_name);
- *cp = toupper(*cp);
- while (*cp)
- cp++;
- np++;
- } else {
- *cp++ = *np++;
- }
- }
+ /*
+ ** On BSD(-derived) systems, the system utilities that deal with
+ ** the GECOS field (finger, mail, sendmail, etc.) translate
+ ** any '&' character in it to the login name, with the first
+ ** letter capitalized. So, for instance, fingering a user "bob"
+ ** with the GECOS field "& Jones" would reveal him to be "In real
+ ** life: Bob Jones". Surprisingly, though, the OS doesn't do the
+ ** translation for you, so we have to do it manually here.
+ */
+ if (mmailid_masquerading)
+ /* Stop at ',' or '<'. */
+ for (cp = fullname;
+ *np != '\0' && *np != ',' && *np != '<';) {
+ if (*np == '&') { /* blech! */
+ strcpy(cp, pw->pw_name);
+ *cp = toupper(*cp);
+ while (*cp)
+ cp++;
+ np++;
+ } else {
+ *cp++ = *np++;
+ }
+ }
+ else
+ /*
+ ** Allow '<' as a legal character of the user's name.
+ ** This code is basically a duplicate of the code above the
+ ** "else" -- we don't collapse it down to one copy and put
+ ** the mmailid_masquerading check inside the loop with "(x
+ ** ? y : z)" because that's inefficient and the value'll
+ ** never change while it's in there.
+ */
+ for (cp = fullname; *np != '\0' && *np != ',';) {
+ if (*np == '&') { /* blech! */
+ strcpy(cp, pw->pw_name);
+ *cp = toupper(*cp);
+ while (*cp)
+ cp++;
+ np++;
+ } else {
+ *cp++ = *np++;
+ }
+ }
#endif /* BSD42 */
- *cp = '\0';
-
- if (mmailid_masquerading) {
- /* Do mmailid processing. The GECOS field should have the form
- "Full Name <fakeusername>". For instance,
- "Dan Harkless <Dan.Harkless>". Naturally, you'll want your MTA to
- have an alias (e.g. in /etc/aliases) from "fakeusername" to your
- account name. */
- if (*np)
- np++;
- for (cp = username; *np && *np != '>'; *cp++ = *np++)
- continue;
*cp = '\0';
- }
- if (!mmailid_masquerading || *np == '\0')
- strncpy (username, pw->pw_name, sizeof(username));
-
- /* The $SIGNATURE environment variable overrides the GECOS field's idea of
- your real name. */
- if ((cp = getenv ("SIGNATURE")) && *cp)
- strncpy (fullname, cp, sizeof(fullname));
-
- if (strchr(fullname, '.')) { /* quote any .'s */
- char tmp[BUFSIZ];
- /* should quote "'s too */
- snprintf (tmp, sizeof(tmp), "\"%s\"", fullname);
- strncpy (fullname, tmp, sizeof(fullname));
- }
+ if (mmailid_masquerading) {
+ /*
+ ** Do mmailid processing. The GECOS field should have
+ ** the form "Full Name <fakeusername>". For instance,
+ ** "Dan Harkless <Dan.Harkless>". Naturally, you'll want
+ ** your MTA to have an alias (e.g. in /etc/aliases) from
+ ** "fakeusername" to your account name.
+ */
+ if (*np)
+ np++;
+ for (cp = username; *np && *np != '>'; *cp++ = *np++)
+ continue;
+ *cp = '\0';
+ }
+ if (!mmailid_masquerading || *np == '\0')
+ strncpy(username, pw->pw_name, sizeof(username));
+
+ /*
+ ** The $SIGNATURE environment variable overrides the GECOS field's
+ ** idea of your real name.
+ */
+ if ((cp = getenv("SIGNATURE")) && *cp)
+ strncpy(fullname, cp, sizeof(fullname));
+
+ if (strchr(fullname, '.')) { /* quote any .'s */
+ char tmp[BUFSIZ];
+
+ /* should quote "'s too */
+ snprintf(tmp, sizeof(tmp), "\"%s\"", fullname);
+ strncpy(fullname, tmp, sizeof(fullname));
+ }
- return;
+ return;
}
static const char*
-get_mtsconf_pathname (void)
+get_mtsconf_pathname(void)
{
- const char *cp = getenv ( "MHMTSCONF ");
- if (cp != NULL && *cp != '\0') {
- return cp;
- }
- return mtsconf;
+ const char *cp = getenv( "MHMTSCONF ");
+ if (cp != NULL && *cp != '\0') {
+ return cp;
+ }
+ return mtsconf;
}
static const char*
-get_mtsuserconf_pathname (void)
+get_mtsuserconf_pathname(void)
{
- const char *cp = getenv ( "MHMTSUSERCONF" );
- if (cp != NULL && *cp != '\0') {
- return cp;
- }
- return NULL;
+ const char *cp = getenv( "MHMTSUSERCONF" );
+ if (cp != NULL && *cp != '\0') {
+ return cp;
+ }
+ return NULL;
}
static void
-mts_read_conf_file (FILE *fp)
+mts_read_conf_file(FILE *fp)
{
- unsigned char *bp;
- char *cp, buffer[BUFSIZ];
- struct bind *b;
-
- while (fgets (buffer, sizeof(buffer), fp)) {
- if (!(cp = strchr(buffer, '\n')))
- break;
- *cp = 0;
- if (*buffer == '#' || *buffer == '\0')
- continue;
- if (!(bp = strchr(buffer, ':')))
- break;
- *bp++ = 0;
- while (isspace (*bp))
- *bp++ = 0;
-
- for (b = binds; b->keyword; b++)
- if (!strcmp (buffer, b->keyword))
- break;
- if (b->keyword && (cp = tailor_value (bp)))
- *b->value = cp;
- }
+ unsigned char *bp;
+ char *cp, buffer[BUFSIZ];
+ struct bind *b;
+
+ while (fgets(buffer, sizeof(buffer), fp)) {
+ if (!(cp = strchr(buffer, '\n')))
+ break;
+ *cp = 0;
+ if (*buffer == '#' || *buffer == '\0')
+ continue;
+ if (!(bp = strchr(buffer, ':')))
+ break;
+ *bp++ = 0;
+ while (isspace(*bp))
+ *bp++ = 0;
+
+ for (b = binds; b->keyword; b++)
+ if (!strcmp(buffer, b->keyword))
+ break;
+ if (b->keyword && (cp = tailor_value(bp)))
+ *b->value = cp;
+ }
}