2 * env.c -- small service routines
4 * For license terms, see the file COPYING in this directory.
6 * i18n by Arnaldo Carvalho de Melo <acme@conectiva.com.br> 7-Nov-1998
12 #if defined(STDC_HEADERS)
15 #if defined(HAVE_UNISTD_H)
21 #ifdef HAVE_GETHOSTBYNAME
23 #endif /* HAVE_GETHOSTBYNAME */
24 #ifndef HAVE_STRFTIME /* For ctime prototype */
25 #include <sys/types.h>
28 #include "fetchmail.h"
32 extern char *getenv(); /* needed on sysV68 R3V7.1. */
34 extern char *program_name;
36 void envquery(int argc, char **argv)
37 /* set up basic stuff from the environment (including the rc file name) */
41 if ((program_name = strrchr(argv[0], '/')) != NULL)
44 program_name = argv[0];
46 if ((user = getenv("USER")) == (char *)NULL)
47 user = getenv("LOGNAME");
49 if ((user == (char *)NULL) || (home = getenv("HOME")) == (char *)NULL)
51 if ((pw = getpwuid(getuid())) != NULL)
59 _("%s: can't find your name and home directory!\n"),
65 #define RCFILE_NAME ".fetchmailrc"
66 rcfile = (char *) xmalloc(strlen(home)+strlen(RCFILE_NAME)+2);
67 /* avoid //.fetchmailrc */
68 if (strcmp(home, "/") != 0) {
74 strcat(rcfile, RCFILE_NAME);
78 /* get the FQDN of the machine we're running */
80 char tmpbuf[HOSTLEN+1];
82 if (gethostname(tmpbuf, sizeof(tmpbuf)))
84 fprintf(stderr, _("%s: can't determine your host!"),
88 #ifdef HAVE_GETHOSTBYNAME
89 /* if we got a . in the hostname assume it is a FQDN */
90 if (strchr(tmpbuf, '.') == NULL)
94 /* if we got a basename (as we do in Linux) make a FQDN of it */
95 hp = gethostbyname(tmpbuf);
96 if (hp == (struct hostent *) NULL)
98 /* exit with error message */
100 _("gethostbyname failed for %s\n"), tmpbuf);
103 return(xstrdup(hp->h_name));
106 #endif /* HAVE_GETHOSTBYNAME */
107 return(xstrdup(tmpbuf));
110 char *rfc822timestamp(void)
111 /* return a timestamp in RFC822 form */
119 * Conform to RFC822. This is typically going to emit
120 * a three-letter timezone for %Z, which is going to
121 * be marked "obsolete syntax" in 822bis. Note that we
122 * generate a 4-digit year here, avoiding Y2K hassles.
123 * Note: max length of this timestamp in an English locale
124 * should be 29 chars, assuming a 3-character timezone.
126 strftime(buf, sizeof(buf)-1,
127 "%a, %d %b %Y %H:%M:%S %Z", localtime(&now));
130 * This is really just a portability fallback, as the
131 * date format ctime(3) emits is not RFC822
134 strcpy(buf, ctime(&now));
135 buf[strlen(buf)-1] = '\0'; /* remove trailing \n */
136 #endif /* HAVE_STRFTIME */
141 const char *showproto(int proto)
142 /* protocol index to protocol name mapping */
146 case P_AUTO: return("auto"); break;
148 case P_POP2: return("POP2"); break;
149 #endif /* POP2_ENABLE */
150 case P_POP3: return("POP3"); break;
151 case P_IMAP: return("IMAP"); break;
152 case P_IMAP_K4: return("IMAP-K4"); break;
154 case P_IMAP_GSS: return("IMAP-GSS"); break;
156 case P_APOP: return("APOP"); break;
157 case P_RPOP: return("RPOP"); break;
158 case P_ETRN: return("ETRN"); break;
159 default: return("unknown?!?"); break;
163 char *visbuf(const char *buf)
164 /* visibilize a given string */
166 static char vbuf[BUFSIZ];
173 *tp++ = '\\'; *tp++ = '"';
176 else if (isprint(*buf) || *buf == ' ')
178 else if (*buf == '\n')
180 *tp++ = '\\'; *tp++ = 'n';
183 else if (*buf == '\r')
185 *tp++ = '\\'; *tp++ = 'r';
188 else if (*buf == '\b')
190 *tp++ = '\\'; *tp++ = 'b';
195 *tp++ = '\\'; *tp++ = '^'; *tp++ = '@' + *buf;
200 (void) sprintf(tp, "\\0x%02x", *buf++);
208 /* env.c ends here */