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/* See LICENSE file for copyright and license details. */
#include "common.h"
int
libcontacts_load_contact(const char *id, struct libcontacts_contact *contact, const struct passwd *user)
{
int ret, fd, saved_errno;
char *data = NULL, *path;
size_t p = 0, n = 0;
ssize_t r;
void *new;
if (!contact) {
errno = EINVAL;
return -1;
}
path = libcontacts_get_path(id, user);
if (!path)
return -1;
fd = open(path, O_RDONLY);
free(path);
if (fd < 0)
return -1;
for (;;) {
if (p == n) {
new = realloc(data, n + (8 << 10) + 1);
if (!new)
goto fail;
n += 8 << 10;
data = new;
}
r = read(fd, &data[p], n - p);
if (r <= 0) {
if (r)
goto fail;
break;
}
p += (size_t)r;
}
data[p] = '\0';
if (memchr(data, '\0', p)) {
errno = 0;
goto fail;
}
close(fd);
ret = libcontacts_parse_contact(data, contact);
free(data);
if (!ret && !(contact->id = strdup(id))) {
libcontacts_contact_destroy(contact);
memset(contact, 0, sizeof(*contact));
return -1;
}
return ret;
fail:
saved_errno = errno;
free(data);
close(fd);
errno = saved_errno;
return -1;
}
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