diff options
Diffstat (limited to 'usr/src/lib/libbc/libc/stdio/common/cuserid.c')
| -rw-r--r-- | usr/src/lib/libbc/libc/stdio/common/cuserid.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/stdio/common/cuserid.c b/usr/src/lib/libbc/libc/stdio/common/cuserid.c new file mode 100644 index 0000000000..b33140d0b8 --- /dev/null +++ b/usr/src/lib/libbc/libc/stdio/common/cuserid.c @@ -0,0 +1,54 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* Copyright (c) 1984 AT&T */ +/* All Rights Reserved */ + +#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.3 */ + +/*LINTLIBRARY*/ +#include <stdio.h> +#include <pwd.h> + +extern char *strcpy(), *getlogin(); +extern int getuid(); +extern struct passwd *getpwuid(); +static char res[L_cuserid]; + +char * +cuserid(s) +char *s; +{ + register struct passwd *pw; + register char *p; + + if (s == NULL) + s = res; + p = getlogin(); + if (p != NULL) + return (strcpy(s, p)); + pw = getpwuid(getuid()); + endpwent(); + if (pw != NULL) + return (strcpy(s, pw->pw_name)); + *s = '\0'; + return (NULL); +} |