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authorGlenn L McGrath <bug1@ihug.co.nz>2001-04-15 12:36:19 +0000
committerGlenn L McGrath <bug1@ihug.co.nz>2001-04-15 12:36:19 +0000
commit65708e4cd1b234501aec3af0970f21ad6736aa44 (patch)
tree8575911dae91c9e9c9f032e9a37c869be9159b0f
parent4a2e4635253e615678cea6f2c253485d26dde73a (diff)
downloadbusybox-65708e4cd1b234501aec3af0970f21ad6736aa44.tar.gz
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.
-rw-r--r--libbb/read_text_file_to_buffer.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/libbb/read_text_file_to_buffer.c b/libbb/read_text_file_to_buffer.c
new file mode 100644
index 000000000..ef64ad712
--- /dev/null
+++ b/libbb/read_text_file_to_buffer.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "libbb.h"
+
+/*
+ * Reads consecutive lines from file line that start with end_string
+ * read finishes at an empty line or eof
+ */
+extern char *read_text_file_to_buffer(FILE *src_file)
+{
+ char *line = NULL;
+ char *buffer = NULL;
+ int buffer_length = 0;
+ int line_length = 0;
+
+ buffer = xmalloc(1);
+ strcpy(buffer, "");
+
+ /* Loop until line is empty, or just one char, which will be '\n' */
+ do {
+ line = get_line_from_file(src_file);
+ if (line == NULL) {
+ break;
+ }
+ line_length = strlen(line);
+ buffer_length += line_length + 1;
+ buffer = (char *) xrealloc(buffer, buffer_length + 1);
+ strcat(buffer, line);
+ free(line);
+ } while (line_length > 1);
+
+ if (strlen(buffer) == 0) {
+ return(NULL);
+ } else {
+ return(strdup(buffer));
+ }
+} \ No newline at end of file