diff options
Diffstat (limited to 'source4/heimdal/lib/com_err/com_err.c')
| -rw-r--r-- | source4/heimdal/lib/com_err/com_err.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/source4/heimdal/lib/com_err/com_err.c b/source4/heimdal/lib/com_err/com_err.c new file mode 100644 index 0000000000..3dec3b2acc --- /dev/null +++ b/source4/heimdal/lib/com_err/com_err.c @@ -0,0 +1,172 @@ +/* + * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +RCSID("$Id$"); +#endif +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <roken.h> +#include "com_err.h" + +struct et_list *_et_list = NULL; + + +const char * +error_message (long code) +{ + static char msg[128]; + const char *p = com_right(_et_list, code); + if (p == NULL) { + if (code < 0) + snprintf(msg, sizeof(msg), "Unknown error %ld", code); + else + p = strerror(code); + } + if (p != NULL && *p != '\0') { + strlcpy(msg, p, sizeof(msg)); + } else + snprintf(msg, sizeof(msg), "Unknown error %ld", code); + return msg; +} + +int +init_error_table(const char **msgs, long base, int count) +{ + initialize_error_table_r(&_et_list, msgs, count, base); + return 0; +} + +static void +default_proc (const char *whoami, long code, const char *fmt, va_list args) + __attribute__((__format__(__printf__, 3, 0))); + +static void +default_proc (const char *whoami, long code, const char *fmt, va_list args) +{ + if (whoami) + fprintf(stderr, "%s: ", whoami); + if (code) + fprintf(stderr, "%s ", error_message(code)); + if (fmt) + vfprintf(stderr, fmt, args); + fprintf(stderr, "\r\n"); /* ??? */ +} + +static errf com_err_hook = default_proc; + +void +com_err_va (const char *whoami, + long code, + const char *fmt, + va_list args) +{ + (*com_err_hook) (whoami, code, fmt, args); +} + +void +com_err (const char *whoami, + long code, + const char *fmt, + ...) +{ + va_list ap; + va_start(ap, fmt); + com_err_va (whoami, code, fmt, ap); + va_end(ap); +} + +errf +set_com_err_hook (errf new) +{ + errf old = com_err_hook; + + if (new) + com_err_hook = new; + else + com_err_hook = default_proc; + + return old; +} + +errf +reset_com_err_hook (void) +{ + return set_com_err_hook(NULL); +} + +#define ERRCODE_RANGE 8 /* # of bits to shift table number */ +#define BITS_PER_CHAR 6 /* # bits to shift per character in name */ + +static const char char_set[] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; + +static char buf[6]; + +const char * +error_table_name(int num) +{ + int ch; + int i; + char *p; + + /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */ + p = buf; + num >>= ERRCODE_RANGE; + /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */ + num &= 077777777; + /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */ + for (i = 4; i >= 0; i--) { + ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1); + if (ch != 0) + *p++ = char_set[ch-1]; + } + *p = '\0'; + return(buf); +} + +void +add_to_error_table(struct et_list *new_table) +{ + struct et_list *et; + + for (et = _et_list; et; et = et->next) { + if (et->table->base == new_table->table->base) + return; + } + + new_table->next = _et_list; + _et_list = new_table; +} |