*/
#include <h/mh.h> /* for snprintf() */
-#include <h/nmh.h>
#include <h/utils.h>
#include <ctype.h>
#include <stdio.h>
-#include <h/mts.h>
#include <pwd.h>
+#include <sys/socket.h>
#include <netdb.h>
-
-#ifdef HAVE_SYS_UTSNAME_H
-# include <sys/utsname.h>
-#endif
-
-#define NOTOK (-1)
-#define OK 0
+#include <unistd.h>
/*
** 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);
-
-/*
-** *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";
-
-char *mmdfldir = MAILSPOOL;
-char *mmdflfil = "";
-char *uucpldir = "/usr/spool/mail";
-char *uucplfil = "";
-
-char *mmdlm1 = "\001\001\001\001\n";
-char *mmdlm2 = "\001\001\001\001\n";
/* Cache the username and fullname of the user */
static char username[BUFSIZ];
static char fullname[BUFSIZ];
-/* Variables for username masquerading: */
-boolean draft_from_masquerading = FALSE;
-static boolean mmailid_masquerading = FALSE;
-boolean username_extension_masquerading = FALSE; /* " from addrsbr.c */
-static char* masquerade = "";
-
-/*
-** Global MailDelivery file
-*/
-char *maildelivery = NMHETCDIR"/maildelivery";
-
-
-/*
-** 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.
-*/
-
-struct bind {
- char *keyword;
- char **value;
-};
-
-static struct bind binds[] = {
- { "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).
-*/
-
-void
-mts_init(char *name)
-{
- 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);
- }
-
- 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 '\\'
-
-/*
-** Convert escaped values, malloc some new space,
-** and copy string to malloc'ed memory.
-*/
-
-static char *
-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;
- *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;
-
- len = strlen(buffer) + 1;
- bp = mh_xmalloc(len);
- memcpy(bp, buffer, len);
-
- return bp;
-}
/*
** Get the fully qualified name of the local host.
*/
-
char *
LocalName(void)
{
static char buffer[BUFSIZ] = "";
struct addrinfo hints, *res;
-#ifdef HAVE_UNAME
- struct utsname name;
-#endif
/* check if we have cached the local name */
if (buffer[0])
return buffer;
- mts_init("mts");
-
memset(buffer, 0, sizeof(buffer));
-#ifdef HAVE_UNAME
- /* first get our local name */
- uname(&name);
- strncpy(buffer, name.nodename, sizeof(buffer) - 1);
-#else
/* first get our local name */
gethostname(buffer, sizeof(buffer) - 1);
-#endif
- /* now fully qualify our name */
+ /* now fully qualify our name */
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_CANONNAME;
hints.ai_family = PF_UNSPEC;
/*
-** This is only for UUCP mail. It gets the hostname
-** as part of the UUCP "domain".
-*/
-
-char *
-SystemName(void)
-{
- static char buffer[BUFSIZ] = "";
-
-#ifdef HAVE_UNAME
- struct utsname name;
-#endif
-
- /* check if we have cached the system name */
- if (buffer[0])
- return buffer;
-
- mts_init("mts");
-
-#ifdef HAVE_UNAME
- uname(&name);
- strncpy(buffer, name.nodename, sizeof(buffer));
-#else
- gethostname(buffer, sizeof(buffer));
-#endif
-
- return buffer;
-}
-
-
-/*
** Get the username of current user
*/
-
char *
getusername(void)
{
** Get full name of current user (typically from GECOS
** field of password file).
*/
-
char *
getfullname(void)
{
/*
** 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)
{
- register unsigned char *cp;
- register char *np;
- register struct passwd *pw;
-
- if ((pw = getpwuid(getuid())) == NULL
- || pw->pw_name == NULL
- || *pw->pw_name == '\0') {
+ unsigned char *cp;
+ char *np;
+ struct passwd *pw;
+ int needquotes = 0;
+ char tmp[BUFSIZ];
+ char *tp;
+
+ if (!(pw = getpwuid(getuid())) || !pw->pw_name || !*pw->pw_name) {
strncpy(username, "unknown", sizeof(username));
- snprintf(fullname, sizeof(fullname), "The Unknown User-ID (%d)",
- (int) getuid());
+ snprintf(fullname, sizeof(fullname),
+ "The Unknown User-ID (%d)", (int)getuid());
return;
}
/*
** 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;
-#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.
+ ** information in the GECOS field, like phone number.
*/
- 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';
+ for (cp = tmp; *np != '\0' && *np != ',';) {
+ *cp++ = *np++;
}
- if (!mmailid_masquerading || *np == '\0')
- strncpy(username, pw->pw_name, sizeof(username));
+ *cp = '\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));
+ strncpy(tmp, cp, sizeof(tmp));
+
+ /* quote the fullname as needed */
+ needquotes = 0;
+ for (tp=tmp; *tp; tp++) {
+ switch (*tp) {
+ case '(': case ')': case '<': case '>': case '[': case ']':
+ case ':': case ';': case '@': case '\\': case ',': case '.':
+ case '"': /* cf. RFC 5322 */
+ break; /* ... the switch */
+ default:
+ continue; /* ... the loop */
+ }
+ /* we've found a special char */
+ needquotes = 1;
+ break;
}
-
- return;
-}
-
-static const char*
-get_mtsconf_pathname(void)
-{
- const char *cp = getenv( "MHMTSCONF ");
- if (cp != NULL && *cp != '\0') {
- return cp;
+ cp=fullname;
+ if (needquotes) {
+ *cp++ = '"';
}
- return mtsconf;
-}
-
-static const char*
-get_mtsuserconf_pathname(void)
-{
- const char *cp = getenv( "MHMTSUSERCONF" );
- if (cp != NULL && *cp != '\0') {
- return cp;
+ for (tp=tmp; *tp; *cp++=*tp++) {
+ if (*tp == '"') {
+ *cp++ = '\\'; /* prepend backslash */
+ }
}
- return NULL;
-}
-
-static void
-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;
+ if (needquotes) {
+ *cp++ = '"';
}
+ *cp = '\0';
+
+ return;
}
projects / mmh / blobdiff