metalink_parse_file(3) libmetalink Manual metalink_parse_file(3)
NAME
metalink_parse_file, metalink_parse_fp, metalink_parse_fd,
metalink_parse_memory - Parse Metalink file and create metalink_t
object.
SYNOPSIS
#include <metalink/metalink.h>
metalink_parse_file(3) char *filename, metalink_t
**res);
metalink_error_t metalink_parse_fp(FILE *docfp, metalink_t **res);
metalink_error_t metalink_parse_fd(int docfd, metalink_t **res);
metalink_error_t metalink_parse_memory(const char *buf, size_t len,
metalink_t **res);
DESCRIPTION
These functions parse Metalink file data and constructs metalink_t
structure. You don't have to allocate memory for metalink_t structure.
They take the pointer of metalink_t pointer and allocate memory for
that pointer.
metalink_parse_file() parses Metalink file denoted by filename and
constructs metalink_t structure.
metalink_parse_fp() reads data from file stream docfp and construtcts
metalink_t structure.
metalink_parse_fd() reads data from file descriptor docfd and
constructs metalink_t structure.
metalink_parse_memory() parses len bytes of buf and constructs
metalink_t structure.
The caller must free the memory allocated for metalink_t structure
using metalink_delete(3) if it is no longer used.
RETURN VALUE
All functions return 0 for success. When error occurred, non-zero value
error code is returned and metalink_t structure is not allocated. The
error codes are described in metalink_error.h.
EXAMPLE
#include <stdio.h>
#include <stdlib.h>
#include <metalink/metalink.h>
int main(int argc, char** argv)
{
metalink_error_t r;
metalink_t* metalink;
metalink_file_t* file;
metalink_checksum_t** checksums;
r = metalink_parse_file("sample.metalink", &metalink);
if(r != 0) {
fprintf(stderr, "ERROR: code=%d\n", r);
exit(EXIT_FAILURE);
}
file = metalink->files[0];
printf("name: %s\n", file->name);
printf("size: %lld\n", file->size);
printf("os : %s\n", file->os);
if(file->checksums) {
checksums = file->checksums;
while(*checksums) {
printf("hash: %s %s\n", (*checksums)->type, (*checksums)->hash);
++checksums;
}
}
if(file->chunk_checksum) {
size_t count = 0;
metalink_piece_hash_t** piece_hashes;
printf("chunk checksum: size=%d, type=%s\n",
file->chunk_checksum->length,
file->chunk_checksum->type);
printf("first 5 piece hashes...\n");
piece_hashes = file->chunk_checksum->piece_hashes;
while(*piece_hashes && count < 5) {
printf("piece=%d, hash=%s\n", (*piece_hashes)->piece,
(*piece_hashes)->hash);
++piece_hashes;
++count;
}
printf("...\n");
}
if(file->resources) {
size_t count = 0;
metalink_resource_t** resources;
printf("first 5 resources...\n");
resources = file->resources;
while(*resources && count < 5) {
printf("type=%s, location=%s, preference=%d, url=%s\n",
(*resources)->type, (*resources)->location,
(*resources)->preference, (*resources)->url);
++resources;
++count;
}
printf("...\n");
}
/* delete metalink_t */
metalink_delete(metalink);
return EXIT_SUCCESS;
}
SEE ALSO
metalink_delete(3), metalink_parse_update(3), metalink_t(3)
libmetalink 0.1.0 July 2012 metalink_parse_file(3)
libmetalink 0.1.3 - Generated Sat Mar 16 16:01:48 CDT 2024