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Diffstat (limited to 'ubi-utils/old-utils/src/error.c')
-rw-r--r--ubi-utils/old-utils/src/error.c240
1 files changed, 240 insertions, 0 deletions
diff --git a/ubi-utils/old-utils/src/error.c b/ubi-utils/old-utils/src/error.c
new file mode 100644
index 0000000..4aaedad
--- /dev/null
+++ b/ubi-utils/old-utils/src/error.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <syslog.h>
+#include <stdlib.h>
+#include <sys/errno.h>
+#include <string.h>
+#include "error.h"
+
+#define MAXLINE 4096
+#define MAXWIDTH 80
+
+static FILE *logfp = NULL;
+
+static void err_doit(int, int, const char *, va_list);
+
+int
+read_procfile(FILE *fp_out, const char *procfile)
+{
+ FILE *fp;
+
+ if (!fp_out)
+ return -ENXIO;
+
+ fp = fopen(procfile, "r");
+ if (!fp)
+ return -ENOENT;
+
+ while(!feof(fp)) {
+ int c = fgetc(fp);
+
+ if (c == EOF)
+ return 0;
+
+ if (putc(c, fp_out) == EOF)
+ return -EIO;
+
+ if (ferror(fp))
+ return -EIO;
+ }
+ return fclose(fp);
+}
+
+void
+error_initlog(const char *logfile)
+{
+ if (!logfile)
+ return;
+
+ logfp = fopen(logfile, "a+");
+ read_procfile(logfp, "/proc/cpuinfo");
+}
+
+void
+info_msg(const char *fmt, ...)
+{
+ FILE* fpout;
+ char buf[MAXLINE + 1];
+ va_list ap;
+ int n;
+
+ fpout = stdout;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, MAXLINE, fmt, ap);
+ n = strlen(buf);
+ strcat(buf, "\n");
+
+ fputs(buf, fpout);
+ fflush(fpout);
+ if (fpout != stdout)
+ fclose(fpout);
+
+ va_end(ap);
+ return;
+}
+
+void
+__err_ret(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ err_doit(1, LOG_INFO, fmt, ap);
+ va_end(ap);
+ return;
+}
+
+void
+__err_sys(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ err_doit(1, LOG_ERR, fmt, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+
+void
+__err_msg(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ err_doit(0, LOG_INFO, fmt, ap);
+ va_end(ap);
+
+ return;
+}
+
+void
+__err_quit(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ err_doit(0, LOG_ERR, fmt, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+void
+__err_dump(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ err_doit(1, LOG_ERR, fmt, ap);
+ va_end(ap);
+ abort(); /* dump core and terminate */
+ exit(EXIT_FAILURE); /* shouldn't get here */
+}
+
+/**
+ * If a logfile is used we must not print on stderr and stdout
+ * anymore. Since pfilfash might be used in a server context, it is
+ * even dangerous to write to those descriptors.
+ */
+static void
+err_doit(int errnoflag, int level __attribute__((unused)),
+ const char *fmt, va_list ap)
+{
+ FILE* fpout;
+ int errno_save, n;
+ char buf[MAXLINE + 1];
+ fpout = stderr;
+
+ errno_save = errno; /* value caller might want printed */
+
+ vsnprintf(buf, MAXLINE, fmt, ap); /* safe */
+
+ n = strlen(buf);
+
+ if (errnoflag)
+ snprintf(buf + n, MAXLINE - n, ": %s", strerror(errno_save));
+ strcat(buf, "\n");
+
+ if (logfp) {
+ fputs(buf, logfp);
+ fflush(logfp);
+ return; /* exit when logging completes */
+ }
+
+ if (fpout == stderr) {
+ /* perform line wrap when outputting to stderr */
+ int word_len, post_len, chars;
+ char *buf_ptr;
+ const char *frmt = "%*s%n %n";
+
+ chars = 0;
+ buf_ptr = buf;
+ while (sscanf(buf_ptr, frmt, &word_len, &post_len) != EOF) {
+ int i;
+ char word[word_len + 1];
+ char post[post_len + 1];
+
+ strncpy(word, buf_ptr, word_len);
+ word[word_len] = '\0';
+ buf_ptr += word_len;
+ post_len -= word_len;
+
+ if (chars + word_len > MAXWIDTH) {
+ fputc('\n', fpout);
+ chars = 0;
+ }
+ fputs(word, fpout);
+ chars += word_len;
+
+ if (post_len > 0) {
+ strncpy(post, buf_ptr, post_len);
+ post[post_len] = '\0';
+ buf_ptr += post_len;
+ }
+ for (i = 0; i < post_len; i++) {
+ int inc = 1, chars_new;
+
+ if (post[i] == '\t')
+ inc = 8;
+ if (post[i] == '\n') {
+ inc = 0;
+ chars_new = 0;
+ } else
+ chars_new = chars + inc;
+
+ if (chars_new > MAXWIDTH) {
+ fputc('\n', fpout);
+ chars_new = inc;
+ }
+ fputc(post[i], fpout);
+ chars = chars_new;
+ }
+ }
+ }
+ else
+ fputs(buf, fpout);
+ fflush(fpout);
+ if (fpout != stderr)
+ fclose(fpout);
+
+ return;
+}