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src/config/rcxml.c: parse xml from buffer

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Avoid unit tests writing to/from files by using xmlParseMemory() instead
of xmlReadFile().
This commit is contained in:
Johan Malm 2020-06-09 21:40:46 +01:00
parent 40c0b169ef
commit bc51e0ad2f
10 changed files with 86 additions and 9 deletions
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33
src/config/rcxml.c
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@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 200112L
#define _POSIX_C_SOURCE 200809L
#include <stdio.h>
#include <string.h>
#include <strings.h>
@ -143,11 +143,12 @@ static void xml_tree_walk(xmlNode *node)
}
}
static void parse_xml(const char *filename)
/* Exposed in header file to allow unit tests to parse buffers */
void rcxml_parse_xml(struct buf *b)
{
xmlDoc *d = xmlReadFile(filename, NULL, 0);
xmlDoc *d = xmlParseMemory(b->buf, b->len);
if (!d) {
fprintf(stderr, "fatal: error reading file '%s'\n", filename);
fprintf(stderr, "fatal: xmlParseMemory()\n");
exit(EXIT_FAILURE);
}
xml_tree_walk(xmlDocGetRootElement(d));
@ -162,7 +163,29 @@ void rcxml_init(struct rcxml *rc)
void rcxml_read(const char *filename)
{
parse_xml(filename);
FILE *stream;
char *line = NULL;
size_t len = 0;
ssize_t n_read;
struct buf b;
/* Read <filename> into buffer and then call rcxml_parse_xml() */
stream = fopen(filename, "r");
if (!stream) {
fprintf(stderr, "warn: cannot read '%s'\n", filename);
return;
}
buf_init(&b);
while ((n_read = getline(&line, &len, stream) != -1)) {
char *p = strrchr(line, '\n');
if (p)
*p = '\0';
buf_add(&b, line);
}
free(line);
fclose(stream);
rcxml_parse_xml(&b);
free(b.buf);
}
void rcxml_set_verbose(void)