diff options
Diffstat (limited to 'converter/other/fiasco/lib/error.c')
-rw-r--r-- | converter/other/fiasco/lib/error.c | 256 |
1 files changed, 130 insertions, 126 deletions
diff --git a/converter/other/fiasco/lib/error.c b/converter/other/fiasco/lib/error.c index 08291ce0..394f896f 100644 --- a/converter/other/fiasco/lib/error.c +++ b/converter/other/fiasco/lib/error.c @@ -3,29 +3,19 @@ * * Written by: Stefan Frank * Ullrich Hafner - * + * * Credits: Modelled after variable argument routines from Jef - * Poskanzer's pbmplus package. + * Poskanzer's pbmplus package. * * This file is part of FIASCO (Fractal Image And Sequence COdec) * Copyright (C) 1994-2000 Ullrich Hafner - - "int dummy = " change to int dummy; dummy =" for Netpbm to avoid - unused variable warning. - - */ - -/* - * $Date: 2000/06/14 20:49:37 $ - * $Author: hafner $ - * $Revision: 5.1 $ - * $State: Exp $ */ #define _ERROR_C #include "config.h" +#include <stdbool.h> #include <stdio.h> #include <errno.h> @@ -47,7 +37,7 @@ /***************************************************************************** local variables - + *****************************************************************************/ static fiasco_verbosity_e verboselevel = FIASCO_SOME_VERBOSITY; @@ -60,63 +50,71 @@ jmp_buf env; /***************************************************************************** public code - + *****************************************************************************/ void -set_error(const char *format, ...) { +set_error(const char * const format, ...) { /*---------------------------------------------------------------------------- Set error text to given string. -----------------------------------------------------------------------------*/ va_list args; unsigned len; + bool error; const char * str; - len = 0; /* initial value */ - str = format; /* initial value */ - VA_START (args, format); - len = strlen (format); - while ((str = strchr (str, '%'))) { - ++str; - if (*str == 's') { - char * const vstring = va_arg (args, char *); - len += strlen(vstring); - } else if (*str == 'd') { - (void)va_arg(args, int); - len += 10; - } else if (*str == 'c') { - (void)va_arg(args, int); - len += 1; - } else - return; - ++str; + /* Compute how long the error text will be: 'len' */ + + for (len = strlen(format), str = &format[0], error = false; + *str && !error; ) { + + str = strchr(str, '%'); + + if (*str) { + ++str; /* Move past % */ + if (*str == 's') { + char * const vstring = va_arg (args, char *); + len += strlen(vstring); + } else if (*str == 'd') { + (void)va_arg(args, int); + len += 10; + } else if (*str == 'c') { + (void)va_arg(args, int); + len += 1; + } else + error = true; + if (!error) + ++str; + } } va_end(args); - VA_START(args, format); + if (!error) { + VA_START(args, format); - if (error_message) - Free(error_message); - error_message = Calloc(len, sizeof (char)); - - vsprintf(error_message, format, args); + if (error_message) + Free(error_message); + error_message = Calloc(len, sizeof (char)); - va_end(args); + vsprintf(error_message, format, args); + + va_end(args); + } } void -error(const char *format, ...) { +error(const char * const format, ...) { /*---------------------------------------------------------------------------- Set error text to given string. - -----------------------------------------------------------------------------*/ +-----------------------------------------------------------------------------*/ va_list args; unsigned len; const char * str; - + len = 0; /* initial value */ str = &format[0]; /* initial value */ @@ -141,7 +139,7 @@ error(const char *format, ...) { exit(1); #endif }; - + ++str; } va_end(args); @@ -151,11 +149,11 @@ error(const char *format, ...) { if (error_message) Free(error_message); error_message = Calloc(len, sizeof (char)); - + vsprintf(error_message, format, args); va_end(args); - + #if HAVE_SETJMP_H longjmp(env, 1); #else @@ -166,117 +164,123 @@ error(const char *format, ...) { const char * -fiasco_get_error_message (void) -/* - * Return value: - * Last error message of FIASCO library. - */ -{ - return error_message ? error_message : ""; +fiasco_get_error_message(void) { +/*---------------------------------------------------------------------------- + Last error message of FIASCO library. +-----------------------------------------------------------------------------*/ + return error_message ? error_message : ""; } + + const char * -get_system_error (void) -{ - return strerror (errno); +get_system_error(void) { + return strerror(errno); } + + void -file_error (const char *filename) -/* - * Print file error message and exit. - * - * No return value. - */ -{ - error ("File `%s': I/O Error - %s.", filename, get_system_error ()); +file_error(const char * const filename) { +/*---------------------------------------------------------------------------- + Print file error message and exit. +-----------------------------------------------------------------------------*/ + error("File `%s': I/O Error - %s.", filename, get_system_error ()); } -void -warning (const char *format, ...) -/* - * Issue a warning and continue execution. - * - * No return value. - */ -{ - va_list args; - VA_START (args, format); - if (verboselevel == FIASCO_NO_VERBOSITY) - return; - - fprintf (stderr, "Warning: "); - vfprintf (stderr, format, args); - fputc ('\n', stderr); +void +warning(const char * const format, ...) { +/*---------------------------------------------------------------------------- + Issue a warning. +-----------------------------------------------------------------------------*/ + va_list args; + + VA_START (args, format); - va_end (args); + if (verboselevel == FIASCO_NO_VERBOSITY) { + /* User doesn't want warnings */ + } else { + fprintf (stderr, "Warning: "); + vfprintf (stderr, format, args); + fputc ('\n', stderr); + } + va_end (args); } -void -message (const char *format, ...) -/* - * Print a message to stderr. - */ -{ - va_list args; - VA_START (args, format); - if (verboselevel == FIASCO_NO_VERBOSITY) - return; +void +message(const char * const format, ...) { +/*---------------------------------------------------------------------------- + Print a message to Standard Error +-----------------------------------------------------------------------------*/ + va_list args; - vfprintf (stderr, format, args); - fputc ('\n', stderr); - va_end (args); + VA_START (args, format); + + if (verboselevel == FIASCO_NO_VERBOSITY) { + /* User doesn't want messages */ + } else { + vfprintf (stderr, format, args); + fputc ('\n', stderr); + } + va_end (args); } -void -debug_message (const char *format, ...) -/* - * Print a message to stderr. - */ -{ - va_list args; - VA_START (args, format); - if (verboselevel < FIASCO_ULTIMATE_VERBOSITY) - return; +void +debug_message(const char * const format, ...) { +/*---------------------------------------------------------------------------- + Print a message to Standard Error if debug messages are enabled. +-----------------------------------------------------------------------------*/ + va_list args; - fprintf (stderr, "*** "); - vfprintf (stderr, format, args); - fputc ('\n', stderr); - va_end (args); + VA_START (args, format); + + if (verboselevel >= FIASCO_ULTIMATE_VERBOSITY) { + fprintf (stderr, "*** "); + vfprintf (stderr, format, args); + fputc ('\n', stderr); + } + va_end (args); } -void -info (const char *format, ...) -/* - * Print a message to stderr. Do not append a newline. - */ -{ - va_list args; - VA_START (args, format); - if (verboselevel == FIASCO_NO_VERBOSITY) - return; +void +info(const char * const format, ...) { +/*---------------------------------------------------------------------------- + Print a message to stderr. Do not append a newline. +-----------------------------------------------------------------------------*/ + va_list args; + + VA_START (args, format); - vfprintf (stderr, format, args); - fflush (stderr); - va_end (args); + if (verboselevel == FIASCO_NO_VERBOSITY) { + /* User doesn't want informational messages */ + } else { + vfprintf (stderr, format, args); + fflush (stderr); + } + va_end (args); } + + void -fiasco_set_verbosity (fiasco_verbosity_e level) -{ +fiasco_set_verbosity(fiasco_verbosity_e const level) { verboselevel = level; } + + fiasco_verbosity_e -fiasco_get_verbosity (void) -{ +fiasco_get_verbosity(void) { return verboselevel; } + + + |