]>
Commit | Line | Data |
---|---|---|
23c9e63c DD |
1 | /* |
2 | * Copyright (c) 2000, Red Hat, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * A copy of the GNU General Public License can be found at | |
10 | * http://www.gnu.org/ | |
11 | * | |
12 | * Written by DJ Delorie <dj@cygnus.com> | |
13 | * | |
14 | */ | |
15 | ||
16 | /* See concat.h. Note that we canonicalize the result, this avoids | |
17 | multiple slashes being interpreted as UNCs. */ | |
18 | ||
8507f105 DD |
19 | static char *cvsid = "\n%%% $Id$\n"; |
20 | ||
23c9e63c DD |
21 | #include <stdarg.h> |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
a351e48c | 24 | #include "concat.h" |
23c9e63c DD |
25 | |
26 | char * | |
a351e48c CF |
27 | concat (const char *s, ...) |
28 | { | |
29 | va_list v; | |
30 | ||
31 | va_start (v, s); | |
32 | ||
33 | return vconcat (s, v); | |
34 | } | |
35 | ||
36 | char * | |
37 | vconcat (const char *s, va_list v) | |
23c9e63c | 38 | { |
ed3e8b9b | 39 | int len; |
23c9e63c | 40 | char *rv, *arg; |
a351e48c CF |
41 | va_list save_v = v; |
42 | int unc; | |
23c9e63c DD |
43 | |
44 | if (!s) | |
45 | return 0; | |
46 | ||
ed3e8b9b DD |
47 | len = strlen (s); |
48 | ||
a351e48c CF |
49 | unc = SLASH_P (*s) && SLASH_P (s[1]); |
50 | ||
23c9e63c DD |
51 | while (1) |
52 | { | |
1fd6d0a2 | 53 | arg = va_arg (v, char *); |
23c9e63c DD |
54 | if (arg == 0) |
55 | break; | |
1fd6d0a2 | 56 | len += strlen (arg); |
23c9e63c | 57 | } |
1fd6d0a2 | 58 | va_end (v); |
23c9e63c DD |
59 | |
60 | rv = (char *) malloc (len+1); | |
1fd6d0a2 | 61 | strcpy (rv, s); |
a351e48c | 62 | v = save_v; |
23c9e63c DD |
63 | while (1) |
64 | { | |
1fd6d0a2 | 65 | arg = va_arg (v, char *); |
23c9e63c DD |
66 | if (arg == 0) |
67 | break; | |
1fd6d0a2 | 68 | strcat (rv, arg); |
23c9e63c | 69 | } |
1fd6d0a2 | 70 | va_end (v); |
23c9e63c | 71 | |
a351e48c CF |
72 | char *d, *p; |
73 | for (p = rv; *p; p++) | |
74 | if (*p == '\\') | |
75 | *p = '/'; | |
76 | ||
23c9e63c DD |
77 | /* concat is only used for urls and files, so we can safely |
78 | canonicalize the results */ | |
a351e48c | 79 | for (p = d = rv; *p; p++) |
23c9e63c | 80 | { |
a351e48c | 81 | *d++ = *p; |
23c9e63c | 82 | /* special case for URLs */ |
a351e48c CF |
83 | if (*p == ':' && p[1] == '/' && p[2] == '/' && p > rv + 1) |
84 | { | |
85 | *d++ = *++p; | |
86 | *d++ = *++p; | |
87 | } | |
88 | else if (*p == '/' || *p == '\\') | |
23c9e63c | 89 | { |
a351e48c CF |
90 | if (p == rv && unc) |
91 | p++; | |
92 | while (p[1] == '/') | |
93 | p++; | |
23c9e63c | 94 | } |
23c9e63c DD |
95 | } |
96 | *d = 0; | |
97 | ||
98 | return rv; | |
99 | } | |
f57c332f DD |
100 | |
101 | char * | |
102 | backslash (char *s) | |
103 | { | |
104 | for (char *t = s; *t; t++) | |
105 | if (*t == '/') | |
106 | *t = '\\'; | |
107 | return s; | |
108 | } |