mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-19 01:11:05 +00:00
05d4c98219
* Rules (static-only-routines rule): Remove spurious space in dep. * misc/getusershell.c: Undo changes of 7 May 96 (rev 1.6). Cast string constants to char *. * posix/glob/SMakefile, posix/glob/SCOPTIONS, posix/glob/Makefile.ami: New files, AmigaDOS support from Aaron Digulla. * posix/Makefile (glob.tar): Add AmigaDOS support files.
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 1985, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char sccsid[] = "@(#)getusershell.c 8.1 (Berkeley) 6/4/93";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/file.h>
|
|
#include <sys/stat.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <paths.h>
|
|
|
|
/*
|
|
* Local shells should NOT be added here. They should be added in
|
|
* /etc/shells.
|
|
*/
|
|
|
|
static char *okshells[] = { (char *) _PATH_BSHELL, (char *) _PATH_CSHELL,
|
|
NULL };
|
|
static char **curshell, **shells, *strings;
|
|
static char **initshells __P((void));
|
|
|
|
/*
|
|
* Get a list of shells from _PATH_SHELLS, if it exists.
|
|
*/
|
|
char *
|
|
getusershell()
|
|
{
|
|
char *ret;
|
|
|
|
if (curshell == NULL)
|
|
curshell = initshells();
|
|
ret = *curshell;
|
|
if (ret != NULL)
|
|
curshell++;
|
|
return (ret);
|
|
}
|
|
|
|
void
|
|
endusershell()
|
|
{
|
|
|
|
if (shells != NULL)
|
|
free(shells);
|
|
shells = NULL;
|
|
if (strings != NULL)
|
|
free(strings);
|
|
strings = NULL;
|
|
curshell = NULL;
|
|
}
|
|
|
|
void
|
|
setusershell()
|
|
{
|
|
|
|
curshell = initshells();
|
|
}
|
|
|
|
static char **
|
|
initshells()
|
|
{
|
|
register char **sp, *cp;
|
|
register FILE *fp;
|
|
struct stat statb;
|
|
|
|
if (shells != NULL)
|
|
free(shells);
|
|
shells = NULL;
|
|
if (strings != NULL)
|
|
free(strings);
|
|
strings = NULL;
|
|
if ((fp = fopen(_PATH_SHELLS, "r")) == NULL)
|
|
return (okshells);
|
|
if (fstat(fileno(fp), &statb) == -1) {
|
|
(void)fclose(fp);
|
|
return (okshells);
|
|
}
|
|
if ((strings = malloc((u_int)statb.st_size + 1)) == NULL) {
|
|
(void)fclose(fp);
|
|
return (okshells);
|
|
}
|
|
shells = calloc((unsigned)statb.st_size / 3, sizeof (char *));
|
|
if (shells == NULL) {
|
|
(void)fclose(fp);
|
|
free(strings);
|
|
strings = NULL;
|
|
return (okshells);
|
|
}
|
|
sp = shells;
|
|
cp = strings;
|
|
while (fgets(cp, statb.st_size - (cp - strings), fp) != NULL) {
|
|
while (*cp != '#' && *cp != '/' && *cp != '\0')
|
|
cp++;
|
|
if (*cp == '#' || *cp == '\0')
|
|
continue;
|
|
*sp++ = cp;
|
|
while (!isspace(*cp) && *cp != '#' && *cp != '\0')
|
|
cp++;
|
|
*cp++ = '\0';
|
|
}
|
|
*sp = NULL;
|
|
(void)fclose(fp);
|
|
return (shells);
|
|
}
|