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-
- /*
- Listing 3
- */
-
- #include <stdio.h>
- #include <errno.h>
- #include <string.h>
- #include "enet_cs.h"
-
- #define NOMOD 65535
-
- FILE *fp;
-
- char filename[100] = "node\"test tester\"::[test]file.txt";
- cs_write(long loc, int value)
- {
-
- char *sptr;
-
- while ((fp = fopen(filename, "a+")) == NULL){
-
- if (errno != NOMOD) {
-
- if ( (sptr = strerror(errno)) == NULL) {
- printf ("Unknown open error.\n");
- exit(0);
- } else {
- sptr = strerror(errno);
- perror (sptr);
- exit(0);
- }
-
- }
-
- };
-
- if (fseek (fp, loc*4, ORIGIN) != 0)
- printf ("ERROR: fseek error in cs_write\n");
-
- if (fprintf (fp, "%d ", value) < 0)
- printf ("ERROR: cs_write error\n");
-
- fclose (fp);
-
- return;
- }
-
- int cs_read(long loc)
- {
-
- char *sptr;
- int value;
-
- while ((fp = fopen(filename, "r")) == NULL){
-
- if (errno != NOMOD) {
-
- if ((sptr = strerror(errno)) == NULL) {
- printf ("Unknown open error.\n");
- exit(0);
- } else {
- sptr = strerror(errno);
- perror (sptr);
- exit(0);
- }
-
- }
-
- };
-
- if (fseek (fp, loc*4, ORIGIN) != 0)
- printf ("ERROR: fseek error in cs_read\n");
- if (fscanf (fp ,"%d", &value) == EOF)
- printf ("ERROR: cs_read error\n");
-
- fclose (fp);
-
- return(value);
- }
-
-