diff options
Diffstat (limited to 'tildexpand.c')
-rw-r--r-- | tildexpand.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/tildexpand.c b/tildexpand.c deleted file mode 100644 index cedb653b2..000000000 --- a/tildexpand.c +++ /dev/null | |||
@@ -1,73 +0,0 @@ | |||
1 | /* | ||
2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | ||
3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | ||
4 | * All rights reserved | ||
5 | * | ||
6 | * As far as I am concerned, the code I have written for this software | ||
7 | * can be used freely for any purpose. Any derived versions of this | ||
8 | * software must be clearly marked as such, and if the derived work is | ||
9 | * incompatible with the protocol description in the RFC file, it must be | ||
10 | * called by a name other than "ssh" or "Secure Shell". | ||
11 | */ | ||
12 | |||
13 | #include "includes.h" | ||
14 | RCSID("$OpenBSD: tildexpand.c,v 1.15 2004/05/21 08:43:03 markus Exp $"); | ||
15 | |||
16 | #include "xmalloc.h" | ||
17 | #include "log.h" | ||
18 | #include "misc.h" | ||
19 | |||
20 | /* | ||
21 | * Expands tildes in the file name. Returns data allocated by xmalloc. | ||
22 | * Warning: this calls getpw*. | ||
23 | */ | ||
24 | char * | ||
25 | tilde_expand_filename(const char *filename, uid_t my_uid) | ||
26 | { | ||
27 | const char *cp; | ||
28 | u_int userlen; | ||
29 | char *expanded; | ||
30 | struct passwd *pw; | ||
31 | char user[100]; | ||
32 | int len; | ||
33 | |||
34 | /* Return immediately if no tilde. */ | ||
35 | if (filename[0] != '~') | ||
36 | return xstrdup(filename); | ||
37 | |||
38 | /* Skip the tilde. */ | ||
39 | filename++; | ||
40 | |||
41 | /* Find where the username ends. */ | ||
42 | cp = strchr(filename, '/'); | ||
43 | if (cp) | ||
44 | userlen = cp - filename; /* Something after username. */ | ||
45 | else | ||
46 | userlen = strlen(filename); /* Nothing after username. */ | ||
47 | if (userlen == 0) | ||
48 | pw = getpwuid(my_uid); /* Own home directory. */ | ||
49 | else { | ||
50 | /* Tilde refers to someone elses home directory. */ | ||
51 | if (userlen > sizeof(user) - 1) | ||
52 | fatal("User name after tilde too long."); | ||
53 | memcpy(user, filename, userlen); | ||
54 | user[userlen] = 0; | ||
55 | pw = getpwnam(user); | ||
56 | } | ||
57 | if (!pw) | ||
58 | fatal("Unknown user %100s.", user); | ||
59 | |||
60 | /* If referring to someones home directory, return it now. */ | ||
61 | if (!cp) { | ||
62 | /* Only home directory specified */ | ||
63 | return xstrdup(pw->pw_dir); | ||
64 | } | ||
65 | /* Build a path combining the specified directory and path. */ | ||
66 | len = strlen(pw->pw_dir) + strlen(cp + 1) + 2; | ||
67 | if (len > MAXPATHLEN) | ||
68 | fatal("Home directory too long (%d > %d", len-1, MAXPATHLEN-1); | ||
69 | expanded = xmalloc(len); | ||
70 | snprintf(expanded, len, "%s%s%s", pw->pw_dir, | ||
71 | strcmp(pw->pw_dir, "/") ? "/" : "", cp + 1); | ||
72 | return expanded; | ||
73 | } | ||