VivoKey/vsmartcard
7
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

picc_to_pcsc now runs as a daemon if the parameters verbose or debug are not defined

Browse Source 
git-svn-id: https://vsmartcard.svn.sourceforge.net/svnroot/vsmartcard@333 96b47cad-a561-4643-ad3b-153ac7d7599c
This commit is contained in:
oepen
2010-10-14 12:34:40 +00:00
parent 4aedda5e1b
commit 2bfeff8b33
1 changed files with 65 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
picc_to_pcsc/src/picc_to_pcsc.c
View File

@@ -37,13 +37,49 @@ static FILE *picc_fd = NULL; /*filehandle used for PICCDEV*/
static LPSTR readers = NULL;
static SCARDCONTEXT hContext = 0;
static SCARDHANDLE hCard = 0;
static int verbose = 0, debug = 0;
/* Forward declaration */
static void daemonize();
static void cleanup_exit(int signo);
static void cleanup(void);
static size_t picc_decode_apdu(char *inbuf, size_t inlen, unsigned char **outbuf);
static size_t picc_encode_rapdu(unsigned char *inbuf, size_t inlen, char **outbuf);
void daemonize() {
pid_t pid, sid;
/*Fork and continue as child process*/
pid = fork();
if (pid < 0)
goto err;
if (pid > 0) /* Exit the parent */
exit(0);
umask(0);
/* Create new session and set the process group ID */
sid = setsid();
if (sid < 0)
goto err;
/* Change the current working directory. This prevents the current
directory from being locked; hence not being able to remove it. */
if (chdir("/") < 0)
goto err;
/* Redirect standard files to /dev/null */
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
return;
err:
fprintf(stderr, "Failed to start the daemon. Exiting.\n");
exit(1);
}
void cleanup_exit(int signo){
cleanup();
exit(0);
@@ -76,7 +112,8 @@ size_t picc_decode_apdu(char *inbuf, size_t inlen, unsigned char **outbuf)
p = realloc(*outbuf, length);
if (!p) {
fprintf(stderr, "Error allocating memory for decoded C-APDU\n");
if (debug || verbose)
fprintf(stderr, "Error allocating memory for decoded C-APDU\n");
goto noapdu;
}
*outbuf = p;
@@ -85,7 +122,8 @@ size_t picc_decode_apdu(char *inbuf, size_t inlen, unsigned char **outbuf)
while(inbuf+inlen > end && length > pos) {
b = strtoul(end, &end, 16);
if (b > 0xff) {
fprintf(stderr, "%s:%u Error decoding C-APDU\n", __FILE__, __LINE__);
if (debug || verbose)
fprintf(stderr, "%s:%u Error decoding C-APDU\n", __FILE__, __LINE__);
goto noapdu;
}
@@ -110,7 +148,8 @@ size_t picc_encode_rapdu(unsigned char *inbuf, size_t inlen, char **outbuf)
length = 5+inlen*3+1;
p = realloc(*outbuf, length);
if (!p) {
fprintf(stderr, "Error allocating memory for encoded R-APDU\n");
if (debug || verbose)
fprintf(stderr, "Error allocating memory for encoded R-APDU\n");
goto err;
}
*outbuf = p;
@@ -149,7 +188,6 @@ int main (int argc, char **argv)
ssize_t linelen;
unsigned int readernum = 0;
int verbose = 0;
struct sigaction new_sig, old_sig;
@@ -157,31 +195,42 @@ int main (int argc, char **argv)
if (argc > 1) {
readernum = strtoul(argv[1], NULL, 10);
if (argc > 2) {
if (0 != strcmp(argv[2], "verbose") || argc > 3) {
if (0 == strcmp(argv[2], "verbose"))
verbose++;
else if (0 == strcmp(argv[2], "debug"))
debug++;
else
goto parse_err;
if (argc > 3) {
parse_err:
fprintf(stderr, "Usage: "
"%s [reader number] [verbose]\n", argv[0]);
"%s [reader number] [verbose | debug]\n", argv[0]);
exit(2);
}
verbose++;
}
}
if (!verbose && !debug)
daemonize();
/* Register signal handlers */
new_sig.sa_handler = cleanup_exit;
sigemptyset(&new_sig.sa_mask);
new_sig.sa_flags = SA_RESTART;
if (sigaction(SIGINT, &new_sig, &old_sig) < 0)
if ((sigaction(SIGINT, &new_sig, &old_sig) < 0)
|| (sigaction(SIGTERM, &new_sig, &old_sig) < 0))
goto err;
/* Open the device */
picc_fd = fopen(PICCDEV, "a+"); /*O_NOCTTY ?*/
if (!picc_fd) {
fprintf(stderr,"Error opening %s\n", PICCDEV);
if (debug || verbose)
fprintf(stderr,"Error opening %s\n", PICCDEV);
goto err;
}
printf("Connected to %s\n", PICCDEV);
if (debug || verbose)
printf("Connected to %s\n", PICCDEV);
/* connect to reader and card */
@@ -196,7 +245,8 @@ int main (int argc, char **argv)
linelen = getline(&read, &readlen, picc_fd);
if (linelen < 0) {
if (linelen < 0) {
fprintf(stderr,"Error reading from %s\n", PICCDEV);
if (debug || verbose)
fprintf(stderr,"Error reading from %s\n", PICCDEV);
goto err;
}
}
@@ -204,7 +254,7 @@ int main (int argc, char **argv)
continue;
fflush(picc_fd);
if (verbose)
if (debug)
printf("%s\n", read);
@@ -232,10 +282,10 @@ int main (int argc, char **argv)
/* write R-APDU */
if (verbose)
printf("INF: Writing R-APDU\n\n%s\n\n", buf);
if (debug)
printf("INF: Writing R-APDU\n\n%s\n\n", (char *) buf);
fprintf(picc_fd,"%s\r\n", buf);
fprintf(picc_fd,"%s\r\n", (char *) buf);
fflush(picc_fd);
}