mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/*
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* util - Utility function library
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*
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* General helper functions
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*
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* Copyright IBM Corp. 2013, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#include <string.h>
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#include "lib/util_base.h"
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#include "lib/util_libc.h"
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/*
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* Print hexdump for buffer with variable group parameter
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*/
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void util_hexdump_grp(FILE *fh, const char *tag, const void *data, int grp,
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int count, int indent)
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{
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const char *buf = data;
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int i, first = 1;
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for (i = 0; i < count; i++) {
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if (first) {
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fprintf(fh, "%*s", indent, " ");
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if (tag)
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fprintf(fh, "%s: ", tag);
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fprintf(fh, "%08x: ", i);
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first = 0;
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}
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fprintf(fh, "%02x", buf[i]);
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if (i % 16 == 15 || i + 1 == count) {
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fprintf(fh, "\n");
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first = 1;
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} else if (i % grp == grp - 1) {
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fprintf(fh, " ");
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}
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}
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}
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/*
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* Print hexdump for buffer with fix grp parameter
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*/
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void util_hexdump(FILE *fh, const char *tag, const void *data, int count)
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{
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util_hexdump_grp(fh, tag, data, sizeof(long), count, 0);
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}
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#define MAX_CHARS_PER_LINE 80
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/*
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* Print string with indentation
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*
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* Print a string while accounting for a given indent value, characters per line
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* limit, and line breaks ('\n') within the string. The first line has to be
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* indented manually.
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*
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* @param[in] str String that should be printed
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* @param[in] indent Indentation for printing
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*/
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void util_print_indented(const char *str, int indent)
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{
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char *word, *line, *desc, *desc_ptr;
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int word_len, pos = indent;
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desc = desc_ptr = util_strdup(str);
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line = strsep(&desc, "\n");
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while (line) {
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word = strsep(&line, " ");
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pos = indent;
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while (word) {
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word_len = strlen(word);
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if (pos + word_len + 1 > MAX_CHARS_PER_LINE) {
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printf("\n%*s", indent, "");
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pos = indent;
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}
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if (pos == indent)
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printf("%s", word);
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else
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printf(" %s", word);
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pos += word_len + 1;
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word = strsep(&line, " ");
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}
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if (desc)
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printf("\n%*s", indent, "");
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line = strsep(&desc, "\n");
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}
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printf("\n");
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free(desc_ptr);
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}
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