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Read ${X} environment variables in strings and $HOME from the global

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environment rather than getenv, this allows them to be updated during
the configuration file.
This commit is contained in:
Nicholas Marriott 2010-12-13 22:53:14 +00:00
parent 51487ed22f
commit 8715247a43
1 changed files with 16 additions and 14 deletions
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30
cmd-string.c
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@ -247,9 +247,10 @@ error:
char *
cmd_string_variable(const char *s, size_t *p)
{
int ch, fch;
char *buf, *t;
size_t len;
int ch, fch;
char *buf, *t;
size_t len;
struct environ_entry *envent;
#define cmd_string_first(ch) ((ch) == '_' || \
((ch) >= 'a' && (ch) <= 'z') || ((ch) >= 'A' && (ch) <= 'Z'))
@ -301,12 +302,11 @@ cmd_string_variable(const char *s, size_t *p)
buf = xrealloc(buf, 1, len + 1);
buf[len] = '\0';
if ((t = getenv(buf)) == NULL) {
xfree(buf);
return (xstrdup(""));
}
envent = environ_find(&global_environ, buf);
xfree(buf);
return (xstrdup(t));
if (envent == NULL)
return (xstrdup(""));
return (xstrdup(envent->value));
error:
if (buf != NULL)
@ -317,15 +317,17 @@ error:
char *
cmd_string_expand_tilde(const char *s, size_t *p)
{
struct passwd *pw;
char *home, *path, *username;
struct passwd *pw;
struct environ_entry *envent;
char *home, *path, *username;
home = NULL;
if (cmd_string_getc(s, p) == '/') {
if ((home = getenv("HOME")) == NULL || *home == '\0') {
if ((pw = getpwuid(getuid())) != NULL)
home = pw->pw_dir;
}
envent = environ_find(&global_environ, "HOME");
if (envent != NULL && *envent->value != '\0')
home = envent->value;
else if ((pw = getpwuid(getuid())) != NULL)
home = pw->pw_dir;
} else {
cmd_string_ungetc(p);
if ((username = cmd_string_string(s, p, '/', 0)) == NULL)