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Nuovo esempio (funzionante) e primo abbozzo delle spiegazioni delle fifo.
[gapil.git]
/
sources
/
BarCode.c
diff --git
a/sources/BarCode.c
b/sources/BarCode.c
index fbea4aee3eb8a5fa8f1cbe83750c6d5ec42ed423..4164acf1b2392782a0d74808fefb5ea1d310057f 100644
(file)
--- a/
sources/BarCode.c
+++ b/
sources/BarCode.c
@@
-29,7
+29,7
@@
* http://localhost/cgi-bin/barcode?string
* where string is the code to be converted
*
* http://localhost/cgi-bin/barcode?string
* where string is the code to be converted
*
- * $Id: BarCode.c,v 1.
4 2002/06/28 17:59:24
piccardi Exp $
+ * $Id: BarCode.c,v 1.
5 2002/06/28 21:07:21
piccardi Exp $
*
****************************************************************/
/*
*
****************************************************************/
/*
@@
-69,7
+69,6
@@
int main(int argc, char *argv[], char *envp[])
int i;
/* write mime-type to stout */
write(STDOUT_FILENO, content, strlen(content));
int i;
/* write mime-type to stout */
write(STDOUT_FILENO, content, strlen(content));
-
/* execute chain of command */
for (i=0; i<4; i++) {
pipe[i] = popen(cmd_string[i], "w");
/* execute chain of command */
for (i=0; i<4; i++) {
pipe[i] = popen(cmd_string[i], "w");
@@
-77,9
+76,9
@@
int main(int argc, char *argv[], char *envp[])
}
/* create barcode (in PS) */
pipein = popen("barcode", "w");
}
/* create barcode (in PS) */
pipein = popen("barcode", "w");
- /* send barcode string */
+ /* send barcode string
to barcode program
*/
write(fileno(pipein), argv[1], strlen(argv[1]));
write(fileno(pipein), argv[1], strlen(argv[1]));
- /* close all pipes */
+ /* close all pipes
(in reverse order)
*/
for (i=4; i==0; i--) {
pclose((pipe[i]));
}
for (i=4; i==0; i--) {
pclose((pipe[i]));
}