char *
expand(char *name)
{
char xname[BUFSIZ];
char foldbuf[BUFSIZ];
register char *cp;
register int l;
wordexp_t wrdexp_buf;
if (debug) fprintf(stderr, "expand(%s)=", name);
cp = strchr(name, '\0') - 1; /* pointer to last char of name */
if (isspace(*cp)) {
/* strip off trailing blanks */
while (cp > name && isspace(*cp))
cp--;
l = *++cp; /* save char */
*cp = '\0';
name = savestr(name);
*cp = (char)l; /* restore char */
}
if (name[0] == '+' && getfold(foldbuf) >= 0) {
snprintf(xname, sizeof (xname), "%s/%s", foldbuf, name + 1);
cp = safeexpand(savestr(xname));
if (debug) fprintf(stderr, "%s\n", cp);
return (cp);
}
if (!anyof(name, "~{[*?$`'\"\\")) {
if (debug) fprintf(stderr, "%s\n", name);
return (name);
}
if (wordexp(name, &wrdexp_buf, WRDE_NOCMD) != 0) {
fprintf(stderr, gettext("Syntax error in \"%s\"\n"), name);
fflush(stderr);
return (NOSTR);
}
if (wrdexp_buf.we_wordc > 1) {
fprintf(stderr, gettext("\"%s\": Ambiguous\n"), name);
fflush(stderr);
return (NOSTR);
}
if (debug) fprintf(stderr, "%s\n", wrdexp_buf.we_wordv[0]);
return (savestr(wrdexp_buf.we_wordv[0]));
}
char *
expand(char *name)
{
static char xname[BUFSIZ];
char cmdbuf[BUFSIZ];
register int pid, l;
register char *cp, *Shell;
int s, pivec[2] /*, (*sigint)()*/;
if (!anyof(name, "~{[*?$`'\"\\"))
return(name);
/* sigint = signal(SIGINT, SIG_IGN); */
if (pipe(pivec) < 0) {
warn("pipe");
/* signal(SIGINT, sigint) */
return(name);
}
snprintf(cmdbuf, sizeof(cmdbuf), "echo %s", name);
if ((pid = vfork()) == 0) {
Shell = value(SHELL);
if (Shell == NULL)
Shell = _PATH_BSHELL;
close(pivec[0]);
close(1);
dup(pivec[1]);
close(pivec[1]);
close(2);
shell_uid();
execl(Shell, Shell, "-c", cmdbuf, NULL);
_exit(1);
}
if (pid == -1) {
warn("fork");
close(pivec[0]);
close(pivec[1]);
return(NULL);
}
close(pivec[1]);
l = read(pivec[0], xname, BUFSIZ);
close(pivec[0]);
while (wait(&s) != pid);
;
s &= 0377;
if (s != 0 && s != SIGPIPE) {
fprintf(stderr, "\"Echo\" failed\n");
return(NULL);
}
if (l < 0) {
warn("read");
return(NULL);
}
if (l == 0) {
fprintf(stderr, "\"%s\": No match\n", name);
return(NULL);
}
if (l == BUFSIZ) {
fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name);
return(NULL);
}
xname[l] = 0;
for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
;
*++cp = '\0';
return(xname);
}
char *
expand(char name[])
{
static char xname[BUFSIZ];
char cmdbuf[BUFSIZ];
int pid, l;
char *cp, *Shell;
int s, pivec[2];
if (!anyof(name, "~{[*?$`'\"\\"))
return (name);
if (pipe(pivec) < 0) {
perror("pipe");
return (name);
}
(void) snprintf(cmdbuf, sizeof (cmdbuf), "echo %s", name);
if ((pid = vfork()) == 0) {
userperm();
Shell = value(SHELL);
if (Shell == NOSTR)
Shell = "/bin/sh";
(void) close(pivec[0]);
(void) close(1);
(void) dup(pivec[1]);
(void) close(pivec[1]);
(void) close(2);
(void) execl(Shell, Shell, "-c", cmdbuf, 0);
_exit(1);
}
if (pid == -1) {
perror("fork");
(void) close(pivec[0]);
(void) close(pivec[1]);
return (NOSTR);
}
(void) close(pivec[1]);
l = read(pivec[0], xname, BUFSIZ);
(void) close(pivec[0]);
while (wait(&s) != pid)
;
s &= 0377;
if (s != 0 && s != SIGPIPE) {
(void) fprintf(stderr, "\"Echo\" failed\n");
return (NOSTR);
}
if (l < 0) {
perror("read");
return (NOSTR);
}
if (l == 0) {
(void) fprintf(stderr, "\"%s\": No match\n", name);
return (NOSTR);
}
if (l == BUFSIZ) {
(void) fprintf(stderr, "Buffer overflow expanding \"%s\"\n",
name);
return (NOSTR);
}
xname[l] = 0;
for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
;
*++cp = '\0';
return (xname);
}
