/*
* Read the file "name" into the returned buffer.
* Set "url" to be a pointer to the file-name
*/
static char *
read_whole_file(const char *name)
{
int fd;
char *p;
void *pp;
char buf[BUFSIZ];
ssize_t ssz;
size_t sz;
struct ical *ical;
/*
* Open the file readonly and read it in BUFSIZ at a time til
* we've read the whole file.
* Nil-terminate always.
*/
if (-1 == (fd = open(name, O_RDONLY, 0))) {
perror(name);
return(NULL);
}
ical = NULL;
p = NULL;
sz = 0;
while ((ssz = read(fd, buf, sizeof(buf))) > 0) {
pp = realloc(p, sz + ssz + 1);
if (NULL == pp) {
perror(NULL);
goto err;
}
p = pp;
memcpy(&p[sz], buf, ssz);
p[sz + ssz] = '\0';
sz += ssz;
}
if (ssz < 0) {
perror(name);
goto err;
}
close(fd);
fd = -1;
/* Parse as an iCalendar. */
if (NULL == (ical = ical_parse(name, p, sz)))
goto err;
ical_free(ical);
return(p);
err:
ical_free(ical);
free(p);
if (-1 != fd)
close(fd);
return(NULL);
}
int
main(int argc, char *argv[])
{
int fd, c;
struct stat st;
size_t i, sz;
char *map;
struct ical *p = NULL;
if (-1 != (c = getopt(argc, argv, "")))
return(EXIT_FAILURE);
argc -= optind;
argv += optind;
if (0 == argc)
return(EXIT_FAILURE);
if (-1 == (fd = open(argv[0], O_RDONLY, 0))) {
perror(argv[0]);
return(EXIT_FAILURE);
} else if (-1 == fstat(fd, &st)) {
perror(argv[0]);
close(fd);
return(EXIT_FAILURE);
}
sz = st.st_size;
map = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0);
close(fd);
if (MAP_FAILED == map) {
perror(argv[0]);
return(EXIT_FAILURE);
} else if (NULL != (p = ical_parse(argv[0], map, sz))) {
for (i = 0; i < ICALTYPE__MAX; i++)
if (NULL != p->comps[i])
ical_printcomp(p->comps[i]);
fflush(stdout);
ical_printfile(STDOUT_FILENO, p);
}
munmap(map, sz);
ical_free(p);
return(NULL == p ? EXIT_FAILURE : EXIT_SUCCESS);
}