1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* env.c -- small service routines
*
* For license terms, see the file COPYING in this directory.
*/
#include "config.h"
#include "fetchmail.h"
#include <stdio.h>
#include <ctype.h>
#if defined(STDC_HEADERS)
#include <stdlib.h>
#endif
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include <pwd.h>
#include <string.h>
#include <ctype.h>
#ifdef HAVE_GETHOSTBYNAME
#include <netdb.h>
#endif /* HAVE_GETHOSTBYNAME */
extern char *getenv(); /* needed on sysV68 R3V7.1. */
extern char *program_name;
void envquery(int argc, char **argv)
/* set up basic stuff from the environment (including the rc file name) */
{
char tmpbuf[BUFSIZ];
struct passwd *pw;
if ((program_name = strrchr(argv[0], '/')) != NULL)
++program_name;
else
program_name = argv[0];
if ((user = getenv("USER")) == (char *)NULL)
user = getenv("LOGNAME");
if ((user == (char *)NULL) || (home = getenv("HOME")) == (char *)NULL)
{
if ((pw = getpwuid(getuid())) != NULL)
{
user = pw->pw_name;
home = pw->pw_dir;
}
else
{
fprintf(stderr,
"%s: can't find your name and home directory!\n",
program_name);
exit(PS_UNDEFINED);
}
}
/* we'll need this for the SMTP forwarding target and error messages */
if (gethostname(tmpbuf, sizeof(tmpbuf)))
{
fprintf(stderr, "%s: can't determine your host!", program_name);
exit(PS_IOERR);
}
#ifdef HAVE_GETHOSTBYNAME
{
struct hostent *hp;
/* in case we got a basename (as we do in Linux) make a FQDN of it */
hp = gethostbyname(tmpbuf);
if (hp == (struct hostent *) NULL)
{
/* exit with error message */
fprintf(stderr, "gethostbyname failed for %s", tmpbuf);
exit(PS_DNS);
}
strcpy(tmpbuf, hp->h_name);
}
#endif /* HAVE_GETHOSTBYNAME */
fetchmailhost = xstrdup(tmpbuf);
#define RCFILE_NAME ".fetchmailrc"
rcfile = (char *) xmalloc(strlen(home)+strlen(RCFILE_NAME)+2);
strcpy(rcfile, home);
strcat(rcfile, "/");
strcat(rcfile, RCFILE_NAME);
}
char *showproto(int proto)
/* protocol index to protocol name mapping */
{
switch (proto)
{
case P_AUTO: return("auto"); break;
#ifdef POP2_ENABLE
case P_POP2: return("POP2"); break;
#endif /* POP2_ENABLE */
case P_POP3: return("POP3"); break;
case P_IMAP: return("IMAP"); break;
case P_IMAP_K4: return("IMAP-K4"); break;
case P_IMAP_GSS: return("IMAP-GSS"); break;
case P_APOP: return("APOP"); break;
case P_RPOP: return("RPOP"); break;
case P_ETRN: return("ETRN"); break;
default: return("unknown?!?"); break;
}
}
char *visbuf(const char *buf)
/* visibilize a given string */
{
static char vbuf[BUFSIZ];
char *tp = vbuf;
while (*buf)
{
if (isprint(*buf) || *buf == ' ')
*tp++ = *buf++;
else if (*buf == '\n')
{
*tp++ = '\\'; *tp++ = 'n';
buf++;
}
else if (*buf == '\r')
{
*tp++ = '\\'; *tp++ = 'r';
buf++;
}
else if (*buf == '\b')
{
*tp++ = '\\'; *tp++ = 'b';
buf++;
}
else if (*buf < ' ')
{
*tp++ = '\\'; *tp++ = '^'; *tp++ = '@' + *buf;
buf++;
}
else
{
(void) sprintf(tp, "\\0x%02x", *buf++);
tp += strlen(tp);
}
}
*tp++ = '\0';
return(vbuf);
}
/* env.c ends here */
|
