diff options
Diffstat (limited to 'usr/src/lib/nsswitch/files/common/getprinter.c')
| -rw-r--r-- | usr/src/lib/nsswitch/files/common/getprinter.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/usr/src/lib/nsswitch/files/common/getprinter.c b/usr/src/lib/nsswitch/files/common/getprinter.c new file mode 100644 index 0000000000..deeaa947bf --- /dev/null +++ b/usr/src/lib/nsswitch/files/common/getprinter.c @@ -0,0 +1,176 @@ +/* + * 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 + */ +/* + * files/printers_getbyname.c -- "files" backend for + * nsswitch "printers" database. + * + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +static const char *printers = "/etc/printers.conf"; + +#pragma weak _nss_files__printers_constr = _nss_files_printers_constr + +#include "files_common.h" +#include <stdlib.h> +#include <strings.h> + +static nss_status_t _nss_files_XY_printers(files_backend_ptr_t, + nss_XbyY_args_t *, const char *); + + +static nss_status_t +getent(be, a) + files_backend_ptr_t be; + void *a; +{ + nss_XbyY_args_t *args = (nss_XbyY_args_t *)a; + + return (_nss_files_XY_all(be, args, 1, 0, 0)); +} + + +static nss_status_t +getbyname(be, a) + files_backend_ptr_t be; + void *a; +{ + nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; + nss_status_t res; + + /* printers_getbyname() has not set/endent; rewind on each call */ + if ((res = _nss_files_setent(be, 0)) != NSS_SUCCESS) { + return (res); + } + return (_nss_files_XY_printers(be, argp, argp->key.name)); +} + +static files_backend_op_t printers_ops[] = { + _nss_files_destr, + _nss_files_endent, + _nss_files_setent, + getent, + getbyname +}; + +nss_backend_t * +_nss_files_printers_constr(dummy1, dummy2, dummy3) + const char *dummy1, *dummy2, *dummy3; +{ + return (_nss_files_constr(printers_ops, + sizeof (printers_ops) / sizeof (printers_ops[0]), + printers, + NSS_LINELEN_PRINTERS, + NULL)); +} + +/* + * printers has the hostname as part of the data in the file, but the other + * backends don't include it in the data passed to the backend. For this + * reason, we process everything here and don't bother calling the backend. + */ +static nss_status_t +_nss_files_XY_printers(be, args, filter) + files_backend_ptr_t be; + nss_XbyY_args_t *args; + const char *filter; + /* + * filter not useful here since the key + * we are looking for is the first "word" + * on the line and we can be fast enough. + */ +{ + nss_status_t res; + int parsestat; + int namelen; + + if (be->buf == 0 && + (be->buf = (char *)malloc(be->minbuf)) == 0) { + (void) _nss_files_endent(be, 0); + return (NSS_UNAVAIL); /* really panic, malloc failed */ + } + + res = NSS_NOTFOUND; + namelen = strlen(args->key.name); + + while (1) { + char *instr = be->buf; + char *p, *limit; + int linelen; + int found = 0; + + /* + * _nss_files_read_line does process the '\' that are used + * in /etc/printers.conf for continuation and gives one long + * buffer. + * + * linelen counts the characters up to but excluding the '\n' + */ + if ((linelen = _nss_files_read_line(be->f, instr, + be->minbuf)) < 0) { + /* End of file */ + args->returnval = 0; + args->erange = 0; + break; + } + p = instr; + + if (*p == '#') /* comment */ + continue; + + /* + * find the name in the namelist a|b|c...: + */ + if ((limit = strchr(instr, ':')) == NULL) /* bad line */ + continue; + while ((p < limit) && (found == 0)) { + if ((strncmp(p, args->key.name, namelen) == 0) && + ((*(p+namelen) == '|') || (*(p+namelen) == ':'))) + found++; + else { + if ((p = strchr(p, '|')) == NULL) + p = limit; + else /* skip the '|' */ + p++; + } + } + if (found == 0) + continue; + + p = instr; + + if (args->buf.buflen <= linelen) { /* not enough buffer */ + args->erange = 1; + break; + } + (void) memcpy(args->buf.buffer, p, linelen); + args->buf.buffer[linelen] = '\0'; + args->returnval = args->buf.result; + res = NSS_SUCCESS; + break; + } + (void) _nss_files_endent(be, 0); + return (res); +} |