187 lines
3.5 KiB
C
187 lines
3.5 KiB
C
/*
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* utils.c -- Miscellaneous utilities such as error reporting.
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*
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* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdarg.h>
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#include <unistd.h> /* UNIX standard function definitions */
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#include <string.h>
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#include "common.h"
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/* Defined in options.c */
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extern int debug_level;
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int
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decode_debug_option(char *arg)
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{
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char *endptr;
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if (arg == NULL) {
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debug_level = LEVEL_ERR;
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} else {
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debug_level = strtol(arg, &endptr, 0);
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if (*endptr != '\0')
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return -1;
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}
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if (debug_level > LAST_DEBUG_LEVEL)
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return -1;
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else
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return 0;
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}
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void
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log_debug1(const char *format, ...)
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{
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FILE *stream = stdout;
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if (debug_level >= LEVEL_DEBUG1) {
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s debug1: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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}
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void
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log_debug2(const char *format, ...)
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{
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FILE *stream = stdout;
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if (debug_level >= LEVEL_DEBUG2) {
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s debug2: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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}
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void
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log_debug3(const char *format, ...)
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{
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FILE *stream = stdout;
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if (debug_level >= LEVEL_DEBUG3) {
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s debug3: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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}
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void
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log_info(const char *format, ...)
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{
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FILE *stream = stdout;
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if (debug_level >= LEVEL_INFO) {
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s info: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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}
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void
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log_warn(const char *format, ...)
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{
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FILE *stream = stderr;
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if (debug_level >= LEVEL_WARN) {
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s warning: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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}
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void
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log_fail(const char *format, ...)
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{
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FILE *stream = stderr;
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va_list ap;
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/* Printing the name of the program first. */
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fprintf(stream, "%s error: ", PACKAGE_NAME);
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va_start(ap, format);
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vfprintf(stream, format, ap);
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va_end(ap);
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fprintf(stream, "\n");
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}
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int
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hv_strncpy(char *dest, const char *src, ssize_t n)
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{
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dest[0] = '\0'; /* NULL string. */
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if (src == NULL) {
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log_warn("null src string");
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return 1;
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}
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if (strlen(src) >= n) {
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log_warn("src string too long");
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return 1;
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}
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strncpy(dest, src, n);
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/* Add the null-terminating character just in case 'src' is larger
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* than 'dest'. */
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dest[n - 1] = '\0';
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return 0;
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}
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