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Make tilde expansion in command strings work even if it isn't terminated by /.

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This commit is contained in:
Nicholas Marriott 2013-10-06 09:06:07 +01:00
parent fa1375c09f
commit 446eb11cde
1 changed files with 22 additions and 7 deletions
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29
cmd-string.c
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@ -318,10 +318,13 @@ cmd_string_expand_tilde(const char *s, size_t *p)
{
struct passwd *pw;
struct environ_entry *envent;
char *home, *path, *username;
char *home, *path, *user, *cp;
int last;
home = NULL;
if (cmd_string_getc(s, p) == '/') {
last = cmd_string_getc(s, p);
if (last == EOF || last == '/' || last == ' '|| last == '\t') {
envent = environ_find(&global_environ, "HOME");
if (envent != NULL && *envent->value != '\0')
home = envent->value;
@ -329,15 +332,27 @@ cmd_string_expand_tilde(const char *s, size_t *p)
home = pw->pw_dir;
} else {
cmd_string_ungetc(p);
if ((username = cmd_string_string(s, p, '/', 0)) == NULL)
return (NULL);
if ((pw = getpwnam(username)) != NULL)
cp = user = xmalloc(strlen(s));
for (;;) {
last = cmd_string_getc(s, p);
if (last == EOF || last == '/' || last == ' '|| last == '\t')
break;
*cp++ = last;
}
*cp = '\0';
if ((pw = getpwnam(user)) != NULL)
home = pw->pw_dir;
free(username);
free(user);
}
if (home == NULL)
return (NULL);
xasprintf(&path, "%s/", home);
if (last != EOF)
xasprintf(&path, "%s%c", home, last);
else
xasprintf(&path, "%s", home);
return (path);
}