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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("contact-id");
int
main(int argc, char *argv[])
{
char buf[BUFSIZ];
struct passwd *user;
char *path;
ssize_t r;
size_t n, p;
int fd;
NOFLAGS(argc != 1);
if (!*argv[0] || strchr(argv[0], '/'))
usage();
errno = 0;
user = getpwuid(getuid());
if (!user)
eprintf("getpwuid: %s\n", errno ? strerror(errno) : "user does not exist");
path = libcontacts_get_path(argv[0], user);
if (!path)
eprintf("libcontacts_get_path %s:", argv[0]);
fd = open(path, O_RDONLY);
if (fd < 0)
eprintf("open %s O_RDONLY:", path);
for (;;) {
r = read(fd, buf, sizeof(buf));
if (r <= 0) {
if (!r)
break;
eprintf("read %s:", path);
}
n = (size_t)r;
for (p = 0; p < n; p += (size_t)r) {
r = write(STDOUT_FILENO, &buf[p], n - p);
if (r <= 0)
eprintf("write <stdout>:");
}
}
if (fflush(stdout) || ferror(stdout) || fclose(stdout))
eprintf("printf:");
close(fd);
free(path);
return 0;
}
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