Dynpipe_waitpidhang

#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/file.h>
#include <unistd.h>
#include <sys/wait.h>
#include <string.h>

#define WRITE 1
#define READ 0

void  parse(char *line, char **argv) {
    while (*line != '\0') {
        while (*line == ' ') {
            *line = '\0';
            line++;
        }
        *argv = line;
        argv++;
        while (!(*line == '\0' || *line == ' ')) {
            line++;
        }
    }
    *argv = '\0';
}

void genArgs(char* args[5][9], int, char**);

int main(int argc, char** argv) {
    if (argc < 3 || argc > 6) {
        printf("Please enter between two and five arguments.\n");
        return(1);
    }
    int cmds[argc - 2][2];
    int pids[5];
    char *args[5][9];
    genArgs(args, argc, argv);
    argc = argc - 1;

    for (int i = 0; i < argc; i++) {
        pipe(cmds[i]);
        if ((pids[i] = fork()) == 0) {
            if (i > 0 && i < argc - 1) {
                dup2(cmds[i - 1][READ], READ);
                dup2(cmds[i][WRITE], WRITE);
            }
            else if (i == argc - 1) {
                dup2(cmds[i - 1][READ], READ);
            }
            else {
                dup2(cmds[i][WRITE], WRITE);
            }
            for (int j = 0; j <= i; j++) {
                close(cmds[j][READ]);
                close(cmds[j][WRITE]);
            }
            execvp(*args[i], args[i]);
            return(1);
        }
        close(cmds[i][WRITE]);
        //close(cmds[i][READ]); uncommenting this line will result in waitpid() to hang if
                                //program is executed with an argument that requires reading and writing:
                                //./Dynpipe "ls -l" "grep cpp" "wc -l"
    }
    for (int i = 0; i < argc; i++) {
        int status;
        waitpid(pids[i], &status, 0);
    }
    return(0);
}

void genArgs(char* args[5][9], int count, char** input) {
    for (int i = 1; i < count; i++) {
        parse(input[i], args[i - 1]);
    }
}