#include <h/utils.h>
#include <ctype.h>
#include <stdio.h>
-#include <h/mts.h>
#include <pwd.h>
#include <netdb.h>
-#ifdef HAVE_SYS_UTSNAME_H
-# include <sys/utsname.h>
-#endif
-
-#define NOTOK (-1)
-#define OK 0
-
/*
** static prototypes
*/
{
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;
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;
-
-#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 *
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;
}
** we hit a ',', which some OSes use to separate other 'finger'
** information in the GECOS field, like phone number.
*/
- for (cp = fullname; *np != '\0' && *np != ',';) {
-#ifndef BSD42
+ for (cp = tmp; *np != '\0' && *np != ',';) {
*cp++ = *np++;
-#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 (*np == '&') { /* blech! */
- strcpy(cp, pw->pw_name);
- *cp = toupper(*cp);
- while (*cp)
- cp++;
- np++;
- } else {
- *cp++ = *np++;
- }
-#endif /* BSD42 */
}
*cp = '\0';
strncpy(username, pw->pw_name, sizeof(username));
** 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;
}
+ cp=fullname;
+ if (needquotes) {
+ *cp++ = '"';
+ }
+ for (tp=tmp; *tp; *cp++=*tp++) {
+ if (*tp == '"') {
+ *cp++ = '\\'; /* prepend backslash */
+ }
+ }
+ if (needquotes) {
+ *cp++ = '"';
+ }
+ *cp = '\0';
return;
}