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>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
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* dump2tar - tool to dump files and command output into a tar archive
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*
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* Dynamically growing string arrays
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*
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* Copyright IBM Corp. 2016, 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 <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "misc.h"
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#include "strarray.h"
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/* Release resources associated with string array @array */
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void free_strarray(struct strarray *array)
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{
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unsigned int i;
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for (i = 0; i < array->num; i++)
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free(array->str[i]);
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free(array->str);
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array->str = NULL;
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array->num = 0;
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}
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/* Add string @str to string array @array */
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void add_str_to_strarray(struct strarray *array, const char *str)
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{
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array->str = mrealloc(array->str, sizeof(char *) * (array->num + 2));
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array->str[array->num + 1] = NULL;
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array->str[array->num] = mstrdup(str);
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array->num++;
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}
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/* Add string resulting from @fmt and additional arguments to @array */
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void add_vstr_to_strarray(struct strarray *array, const char *fmt, ...)
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{
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va_list args;
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char *str;
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va_start(args, fmt);
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util_vasprintf(&str, fmt, args);
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va_end(args);
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array->str = mrealloc(array->str, sizeof(char *) * (array->num + 2));
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array->str[array->num + 1] = NULL;
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array->str[array->num] = str;
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array->num++;
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}
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/* Add all lines in file at @filename to @array */
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int add_file_to_strarray(struct strarray *array, const char *filename)
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{
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FILE *fd;
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char *line = NULL;
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size_t line_size;
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int rc = EXIT_OK;
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fd = fopen(filename, "r");
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if (!fd) {
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mwarn("%s: Cannot open file", filename);
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return EXIT_RUNTIME;
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}
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while (!feof(fd) && !ferror(fd)) {
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if (getline(&line, &line_size, fd) == -1)
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continue;
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chomp(line, "\n");
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add_str_to_strarray(array, line);
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}
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if (ferror(fd))
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rc = EXIT_RUNTIME;
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free(line);
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fclose(fd);
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return rc;
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}
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