Read a FILE* till an empty line or eof and return it as a char buffer.
In future maybe add char *end_str to interface to allow calling function to specify end point.
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38
libbb/read_text_file_to_buffer.c
Normal file
38
libbb/read_text_file_to_buffer.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libbb.h"
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/*
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* Reads consecutive lines from file line that start with end_string
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* read finishes at an empty line or eof
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*/
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extern char *read_text_file_to_buffer(FILE *src_file)
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{
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char *line = NULL;
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char *buffer = NULL;
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int buffer_length = 0;
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int line_length = 0;
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buffer = xmalloc(1);
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strcpy(buffer, "");
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/* Loop until line is empty, or just one char, which will be '\n' */
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do {
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line = get_line_from_file(src_file);
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if (line == NULL) {
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break;
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}
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line_length = strlen(line);
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buffer_length += line_length + 1;
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buffer = (char *) xrealloc(buffer, buffer_length + 1);
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strcat(buffer, line);
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free(line);
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} while (line_length > 1);
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if (strlen(buffer) == 0) {
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return(NULL);
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} else {
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return(strdup(buffer));
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}
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}
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