44 lines
710 B
C
44 lines
710 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define PROMPT "msh> "
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#define EXIT_CMD "exit"
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#define MAX_BUF 121
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void echo(const char*);
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void remove_newline(char*);
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void exit_branch(const char*);
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int main(void) {
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char buffer[MAX_BUF];
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while(1) {
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printf("%s", PROMPT);
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fgets(buffer, MAX_BUF, stdin);
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// process the input
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remove_newline(buffer);
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exit_branch(buffer);
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echo(buffer);
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}
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return 0;
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}
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void echo(const char* buf) {
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printf("%s\n", buf);
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}
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void remove_newline(char* buf) {
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char* c = buf;
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while(*c != '\n') { c++; }
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*c='\0';
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}
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void exit_branch(const char* buf) {
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if(strcmp(buf, EXIT_CMD)) {
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return;
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}
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exit(0);
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return; // just for gcc but exit shouldn't fail
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}
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