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pkg-utils/main/cmd/pack/write_hdr.c
David Oberhollenzer 20aea96396 Add license
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
2019-03-08 18:18:31 +01:00

42 lines
890 B
C

/* SPDX-License-Identifier: ISC */
#include "pack.h"
int write_header_data(pkg_writer_t *wr, pkg_desc_t *desc)
{
pkg_dependency_t pkgdep;
size_t dep_count = 0;
dependency_t *dep;
pkg_header_t hdr;
for (dep = desc->deps; dep != NULL; dep = dep->next)
dep_count += 1;
if (dep_count > 0xFFFF) {
fputs("too many package dependencies\n", stderr);
return -1;
}
memset(&hdr, 0, sizeof(hdr));
hdr.num_depends = htole16(dep_count);
if (pkg_writer_write_payload(wr, &hdr, sizeof(hdr)))
return -1;
for (dep = desc->deps; dep != NULL; dep = dep->next) {
memset(&pkgdep, 0, sizeof(pkgdep));
pkgdep.type = dep->type;
pkgdep.name_length = strlen(dep->name);
if (pkg_writer_write_payload(wr, &pkgdep, sizeof(pkgdep)))
return -1;
if (pkg_writer_write_payload(wr, dep->name,
pkgdep.name_length)) {
return -1;
}
}
return pkg_writer_end_record(wr);
}