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unable to send a char parameter from main to a function
10-13-2011
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <ctype.h>
#include <stdbool.h>
char getFileMode(char charSetter) {
char fileType = 0; /*var to hold the value to be returned*/
fileType = charSetter;
return fileType; /*end function */
}
int main(int argc, char *argv[]) {
/*this set of vars for getopt*/
int c;
char *options = "t::dfl";
extern char *optarg;
extern int optind, optopt, opterr;
char dir = 'd',
file = 'f',
slink = 'l',
charSetter = 0;
/*this set of vars for the traversal and the test*/
char fileType = 0;
char *dirName = argv[argc-1];
if (argc < 2) {
printf("mfind [-t type] start1 [start2 ...] name \n"); /*usage*/
}
while ((c = getopt(argc, argv, options)) != -1) {
switch (c) {
case 't':
optarg = options;
printf("Type is set to: %c\n", charSetter); /*should be zero*/
printf("option: %c\n",c);
break;
case 'd':
printf("d is set\n");
charSetter = dir;
break;
case 'f':
printf("f is set\n");
charSetter = file;
break;
case 'l':
printf("l is set\n");
charSetter = slink;
break;
case ':':
printf("-%c without type\n", optopt);
break;
case '?':
printf("unknown arg %c\n", optopt);
fprintf(stderr, "Unrecognized option: -%c\n", optopt);
}
}
int i;
for(i=1;i<argc;i++){
printf("argv: %s\n",argv[i]);
}
for (; optind < argc; optind++) {
fileType = getFileMode(charSetter);
printf("the filetype is %c", fileType);
}
return (0);
}#include <stdio.h>
#include <stdlib.h>
char getFileMode(char charChanger) {
printf("charChanger has %c\n", charChanger);
char *filetype; /*var to hold the value to be returned*/
filetype = charChanger; /*set filetype to 'l'*/
return filetype;
}
int main(void){
char type = 0;
char dir = 'd',
file = 'f',
slink = 'l',
charChanger=0;
charChanger = file;
type = getFileMode(charChanger);
printf("type is %c\n", type);
return 0;
}
#include <getopt.h>
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