76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
// stdlib import
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// bash utilities import
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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int main () {
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// array declaration
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char *strings[5];
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char *string_cpy[5];
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char temp[100];
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// variables reqd
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int i,j;
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pid_t pid;
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int status;
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// input
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printf("Enter strings to print: \n");
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const size_t str_size = 100;
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for (i = 0; i < 5; i++) {
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strings[i] = malloc(str_size);
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string_cpy[i] = malloc(str_size);
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if (!strings[i] || !string_cpy[i]) {
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fprintf(stderr, "Memory allocation failed\n");
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exit(1);
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}
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if (fgets(strings[i], str_size, stdin)) {
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memcpy(string_cpy[i], strings[i], str_size);
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}
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}
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// forking
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pid = fork();
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// child process
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if (pid == 0) {
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printf("\n Child Process: \n");
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for (i = 0; i < 5; i++) {
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for (j = 0; j < 5 - i - 1; j++) {
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if (strcmp(strings[j], strings[j + 1]) > 0){
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strcpy(temp, strings[j]);
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strcpy(strings[j], strings[j+1]);
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strcpy(strings[j+1], temp);
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}
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}
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}
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for (i = 0; i < 5; i++) {
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printf("\n Child: %s \n", strings[i]);
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}
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printf("\n");
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exit (00);
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// parent process
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} else if (pid > 0) {
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wait(&status);
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printf("\n Parent Process: \n");
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for (i = 0; i < 5; i++) {
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printf("\n Parent: %s \n", string_cpy[i]);
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printf("%d",WEXITSTATUS(status));
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}
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// exception handling (catchall statement)
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} else {
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printf("THE SYSTEM ENCOUNTERED AN ERROR. Please try again later or debug the code. \n");
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}
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}
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