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by Petr Cech
Import upstream version 2.10 |
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#ifndef LINT
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/* @(#) prterror.c 2.8 88/01/31 18:48:17 */
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static char sccsid[]="@(#) prterror.c 2.8 88/01/31 18:48:17"; |
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#endif /* LINT */ |
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/*
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The contents of this file are hereby released to the public domain.
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-- Rahul Dhesi 1986/11/14
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*/
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#include "options.h" |
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#ifndef OK_STDIO
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#include <stdio.h> |
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#define OK_STDIO
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#endif
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#include "various.h" |
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#include "zooio.h" |
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#include "zoofns.h" |
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#ifdef NEEDCTYP
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# include <ctype.h> /* for isdigit() */ |
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#endif
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#ifdef STDARG
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# include <stdarg.h>
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#else
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# ifdef VARARGS
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# include <varargs.h>
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# else
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# include "MUST DEFINE STDARG OR VARARGS"
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# endif
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#endif
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#ifdef NEED_VPRINTF
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static int zvfprintf(); |
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#endif
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/* General error handler. Input format:
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parameter 1: 'w', 'e', or 'f'.
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'm': message
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'M': message without preceding identification
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'w': WARNING
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'e': ERROR
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'f': FATAL
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'F': FATAL but program doesn't exist immediately
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All text printed is preceded by "Zoo: " or "Ooz: " depending
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upon conditional compilation, except in the case of 'M' messages
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which are printed without any text being added.
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For messages, the text supplied is printed if and only if the global
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variable "quiet" is zero. Control then returns to the caller.
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For warnings, errors, and fatal errors, the variable "quiet" is used
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as follows. Warning messages are suppressed if quiet > 1; error
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messages are suppressed if quiet > 2. Fatal error messages are
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never suppressed--doing so would be a bit risky.
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For warnings and errors, the error message is preceded by the "WARNING:"
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or "ERROR". The error message is printed and control returns to the
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caller.
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For fatal errors, the error message is preceded by "FATAL:" and an
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error message is printed. If the option was 'f', the program exits with
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a status of 1. If the option was 'F', control returns to the caller and
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it is assumed that the caller will do any cleaning up necessary and then
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exit with an error status.
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parameter 2: The format control string for printf.
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remining parameters: passed on to vprintf().
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All messages, whether informative or error, are sent to standard
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output via printf. It might be a good idea to eventually send 'e' and
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'f' class messages to the standard error stream. Best would be
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some way of telling if standard output and standard error are not
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the same device, so that we could always send error messages to
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standard error, and also duplicate them to standard output if
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different from standard error. This is one thing that VMS seems
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to be capable of doing. There seems to be no way of doing this
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in the general case.
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*/
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extern int quiet; |
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/* These declarations must be equivalent to those in errors.i */
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char no_match[] = "No files matched.\n"; |
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char failed_consistency[] = "Archive header failed consistency check.\n"; |
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char invalid_header[] = "Invalid or corrupted archive.\n"; |
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char internal_error[]="Internal error.\n"; |
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char disk_full[] = "I/O error or disk full.\n"; |
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char bad_directory[] = "Directory entry in archive is invalid.\n"; |
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char no_memory[] = "Ran out of memory.\n"; |
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char too_many_files[] = "Some filenames ignored -- can only handle %d.\n"; |
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char packfirst[] = "Old format archive -- please pack first with P command.\n"; |
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char garbled[] = "Command is garbled.\n"; |
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char start_ofs[] = "Starting at %ld (offset %ld)\n"; |
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#ifndef OOZ
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char wrong_version[]= |
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"Zoo %d.%d or later is needed to fully manipulate this archive.\n"; |
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char cant_process[] = |
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"The rest of the archive (%lu bytes) cannot be processed.\n"; |
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char option_ignored[] = "Ignoring option %c.\n"; |
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char inv_option[] = "Option %c is invalid.\n"; |
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char bad_crc[] = "\007Bad CRC, %s probably corrupted\n"; |
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#endif
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#ifdef OOZ
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char could_not_open[] = "Could not open "; |
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#else
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char could_not_open[] = "Could not open %s.\n"; |
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#endif
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#ifdef STDARG
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void prterror(int level, char *format, ...) |
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#else
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/*VARARGS*/
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void prterror(va_alist) |
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va_dcl
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#endif
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{
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va_list args; |
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char string[120]; /* local format string */ |
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#ifdef VARARGS
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int level; |
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char *format; |
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#endif
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#ifdef STDARG
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va_start(args, format); |
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#else
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va_start(args); |
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level = va_arg(args, int); |
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format = va_arg(args, char *); |
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#endif
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*string = '\0'; /* get a null string to begin with */ |
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#ifdef OOZ
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strcpy (string, "Ooz: "); |
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#else
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strcpy (string, "Zoo: "); |
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#endif
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switch (level) { |
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case 'M': *string = '\0'; /* fall through to 'm' */ |
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case 'm': if (quiet) return; break; |
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case 'w': |
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if (quiet > 1) return; |
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strcat (string, "WARNING: "); break; |
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case 'e': |
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if (quiet > 2) return; |
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strcat (string, "ERROR: "); break; |
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case 'F': |
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case 'f': strcat (string, "FATAL: "); break; |
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default: prterror ('f', internal_error); /* slick recursive call */ |
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}
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strcat (string, format); /* just append supplied format string */ |
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/* and print the whole thing */
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#ifdef NEED_VPRINTF
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(void) zvfprintf(stdout, string, args); |
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#else
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(void) vprintf(string, args); |
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#endif
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fflush (stdout); |
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if (level == 'f') /* and abort on fatal error 'f' but not 'F' */ |
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zooexit (1); |
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}
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#ifdef NEED_VPRINTF
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/* Some systems don't have vprintf; if so, we roll our own. The following
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has been adapted from a Usenet posting by Jef Poskanzer <jef@well.sf.ca.us>.
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This is a portable mini-vfprintf that depends only on fprintf.
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We don't call this routine vfprintf to avoid unexpected conflicts with any
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library routine of the same name, notwithstanding the fact that we will
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usually use it only when there is no conflict. Also, even though we only
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need vprintf, the routine used here implements vfprintf. This will allow
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future uses as needed when output is to be sent to a stream other than
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stdout. */
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/* Whether to support double. Better not to, because it may cause
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math stuff to be linked in */
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#undef NEED_DOUBLE
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static int zvfprintf(stream, format, args) |
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FILE *stream; |
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char *format; |
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va_list args; |
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{
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char *ep; |
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char fchar; |
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char tformat[512]; |
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int do_long; /* whether to print as long (l format suffix) */ |
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int do_star; /* * used in format => get width from argument */ |
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int star_size; /* size arg corresponding to "*" format */ |
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int i; |
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long l; |
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unsigned u; |
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unsigned long ul; |
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char *s; |
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#ifdef NEED_DOUBLE
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double d; |
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#endif
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while (*format != '\0') { |
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if (*format != '%') { /* Not special, just write out the char. */ |
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putc(*format, stream); |
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++format; |
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} else { |
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do_star = 0; |
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do_long = 0; |
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ep = format + 1; |
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/* Skip over all the field width and precision junk. */
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if (*ep == '-') |
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++ep; |
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if (*ep == '0') |
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++ep; |
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while (isdigit(*ep)) |
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++ep; |
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if (*ep == '.') { |
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++ep; |
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while (isdigit(*ep)) |
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++ep; |
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}
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if (*ep == '#') |
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++ep; |
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if (*ep == '*') { |
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do_star = 1; |
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star_size = va_arg(args, int); /* get * argument */ |
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++ep; |
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}
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if (*ep == 'l') { |
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do_long = 1; |
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++ep; |
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}
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/* Here's the field type. Extract it, and copy this format
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** specifier to a temp string so we can add an end-of-string.
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*/
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fchar = *ep; |
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(void) strncpy(tformat, format, ep - format + 1); |
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tformat[ep - format + 1] = '\0'; |
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/* Now do a one-argument printf with the format string we have
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isolated. If the * format was used, we will also supply the
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additional parameter star_size, which we have already obtained
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from the variable argument list. */
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switch (fchar) { |
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case 'd': |
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if (do_long) { |
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l = va_arg(args, long); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, l); |
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else
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(void) fprintf(stream, tformat, l); |
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} else { |
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i = va_arg(args, int); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, i); |
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else
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(void) fprintf(stream, tformat, i); |
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}
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break; |
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case 'o': |
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case 'x': |
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case 'u': |
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if (do_long) { |
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ul = va_arg(args, unsigned long); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, ul); |
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else
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(void) fprintf(stream, tformat, ul); |
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} else { |
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u = va_arg(args, unsigned); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, u); |
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else
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(void) fprintf(stream, tformat, u); |
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}
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break; |
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case 'c': |
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i = (char) va_arg(args, int); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, i); |
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else
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(void) fprintf(stream, tformat, i); |
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break; |
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case 's': |
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s = va_arg(args, char *); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, s); |
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else
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(void) fprintf(stream, tformat, s); |
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break; |
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#ifdef NEED_DOUBLE
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case 'e': |
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case 'f': |
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case 'g': |
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d = va_arg(args, double); |
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if (do_star) |
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(void) fprintf(stream, tformat, star_size, d); |
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else
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(void) fprintf(stream, tformat, d); |
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break; |
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#endif
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case '%': |
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putc('%', stream); |
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break; |
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default: |
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return -1; |
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}
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/* Resume formatting on the next character. */
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format = ep + 1; |
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}
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}
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va_end(args); |
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return 0; |
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}
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#endif /*NEED_VPRINTF*/ |