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#define _GNU_SOURCE
#include <dac.h>
#include <dadwcurl.h>
#include <dadwarc.h>
#include <getopt.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/mman.h>
#define ATLASTOKSZ PATH_MAX
#define ATLASMAPNM "/hapdeviceatlas"
const char *__pgname;
static struct {
da_dwatlas_t o;
int ofd;
void* atlasmap;
} global_deviceatlassch = {
.ofd = -1,
.atlasmap = NULL
};
void usage(void)
{
fprintf(stderr, "%s -u download URL [-d hour (in H:M:S format) current hour by default] [-p path for the downloaded file, /tmp by default]\n", __pgname);
exit(EXIT_FAILURE);
}
static size_t jsonread(void *ctx, size_t count, char *buf)
{
return fread(buf, 1, count, ctx);
}
static da_status_t jsonseek(void *ctx, off_t pos)
{
return fseek(ctx, pos, SEEK_SET) != -1 ? DA_OK : DA_SYS;
}
static void dadwlog(dw_config_t cfg, const char* msg)
{
time_t now = time(NULL);
char buf[26] = {0};
ctime_r(&now, buf);
buf[24] = 0;
fprintf(stderr, "%s: %s\n", buf, msg);
}
static dw_status_t dadwnot(void *a, dw_config_t *cfg)
{
da_dwatlas_t *o = (da_dwatlas_t *)a;
if (!o)
return DW_ERR;
char *e;
char jsondbuf[26] = {0}, buf[26] = {0}, atlasp[ATLASTOKSZ] = {0};
time_t now = time(NULL);
time_t jsond;
int fd = -1;
(void)a;
jsond = da_getdatacreation(&o->atlas);
dwgetfinalp(o->dcfg.info, atlasp, sizeof(atlasp));
ctime_r(&jsond, jsondbuf);
ctime_r(&now, buf);
jsondbuf[24] = 0;
buf[24] = 0;
printf("%s: data file generated on `%s`\n", buf, jsondbuf);
int val = 1;
unsigned char *ptr = (unsigned char *)global_deviceatlassch.atlasmap;
memset(ptr, 0, sizeof(atlasp));
strcpy(ptr, atlasp);
return DW_OK;
}
static da_status_t dadwinit(void)
{
if ((global_deviceatlassch.ofd = shm_open(ATLASMAPNM, O_RDWR | O_CREAT, 0660)) == -1) {
fprintf(stderr, "%s\n", strerror(errno));
return DA_SYS;
}
if (ftruncate(global_deviceatlassch.ofd, ATLASTOKSZ) == -1) {
close(global_deviceatlassch.ofd);
return DA_SYS;
}
lseek(global_deviceatlassch.ofd, 0, SEEK_SET);
global_deviceatlassch.atlasmap = mmap(0, ATLASTOKSZ, PROT_READ | PROT_WRITE, MAP_SHARED, global_deviceatlassch.ofd, 0);
if (global_deviceatlassch.atlasmap == MAP_FAILED) {
fprintf(stderr, "%s\n", strerror(errno));
return DA_SYS;
} else {
memset(global_deviceatlassch.atlasmap, 0, ATLASTOKSZ);
return DA_OK;
}
}
static void dadwexit(int sig __attribute__((unused)), siginfo_t *s __attribute__((unused)), void *ctx __attribute__((unused)))
{
ssize_t w;
fprintf(stderr, "%s: exit\n", __pgname);
dw_daatlas_close(&global_deviceatlassch.o);
da_fini();
munmap(global_deviceatlassch.atlasmap, ATLASTOKSZ);
close(global_deviceatlassch.ofd);
shm_unlink(ATLASMAPNM);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
const char *opts = "u:p:d:h";
bool dset = false;
size_t i;
int ch;
da_property_decl_t extraprops[1] = {
{ 0, 0 }
};
__pgname = argv[0];
dw_df_dainit_fn = curldwinit;
dw_df_dacleanup_fn = curldwcleanup;
da_init();
memset(&global_deviceatlassch.o.dcfg, 0, sizeof(global_deviceatlassch.o.dcfg));
while ((ch = getopt(argc, argv, opts)) != -1) {
switch (ch) {
case 'u':
global_deviceatlassch.o.dcfg.info.url = strdup(optarg);
break;
case 'p':
global_deviceatlassch.o.dcfg.info.path = strdup(optarg);
break;
case 'd':
if (strptime(optarg, "%H:%M:%S", &global_deviceatlassch.o.dcfg.info.rtm) != NULL)
dset = true;
else
usage();
break;
case 'h':
default:
usage();
}
}
if (!dset) {
time_t now = time(NULL);
struct tm *cnow = gmtime(&now);
memcpy(&global_deviceatlassch.o.dcfg.info.rtm, cnow, offsetof(struct tm, tm_mday));
}
if (!global_deviceatlassch.o.dcfg.info.url)
usage();
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_flags = SA_SIGINFO | SA_RESTART;
sa.sa_sigaction = dadwexit;
global_deviceatlassch.o.dcfg.info.datatm = 1;
global_deviceatlassch.o.dcfg.info.chksum = 1;
global_deviceatlassch.o.dcfg.info.reload = 1;
global_deviceatlassch.o.dcfg.info.tobin = 1;
global_deviceatlassch.o.dcfg.ep = extraprops;
global_deviceatlassch.o.dcfg.dwproc = curldwproc;
global_deviceatlassch.o.dcfg.dwextract = dadwextract;
global_deviceatlassch.o.dcfg.lptr = (void *)stderr;
global_deviceatlassch.o.dcfg.dwlog = &dadwlog;
global_deviceatlassch.o.dcfg.dwnotify_n = &dadwnot;
global_deviceatlassch.o.rfn = jsonread;
global_deviceatlassch.o.posfn = jsonseek;
if (dadwinit() != DA_OK) {
fprintf(stderr, "%s init failed\n", __pgname);
exit(EXIT_FAILURE);
}
if (da_atlas_open_schedule(&global_deviceatlassch.o) != DA_OK) {
fprintf(stderr, "%s scheduling failed\n", __pgname);
exit(EXIT_FAILURE);
}
sigaction(SIGINT, &sa, NULL);
sigaction(SIGQUIT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
while (true) sleep(1);
return 0;
}
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