43 lines
871 B
C
43 lines
871 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <err.h>
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int execute_me2(char *file, char **args){
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if(!file || !args || !*args) return 1;
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int wstatus;
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pid_t pid = fork();
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if (pid < 0) return -1;
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// Child
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else if (pid == 0) {
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if(file != *args) exit(-1);
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exit(execlp(file, args[0], args[1], (char *)NULL));
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}
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// Daddy
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else {
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if(waitpid(pid, &wstatus, 0) == -1) return -1;
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if(WIFEXITED(wstatus)) return WEXITSTATUS(wstatus);
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}
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return 0;
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}
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/*
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int main(){
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char *argv[] = {"ls", "-l", NULL};
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execute_me2("ls", argv); // should be the same as doing "ls -l" in the shell
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//char *argv[] = {"ls", "-l", NULL};
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int i = execute_me2("wrong", argv); // should return 255
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}*/
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