41 lines
991 B
C
41 lines
991 B
C
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/wait.h>
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/* Program tworzy proces potomny i uruchamia zadane polecenie w ramach procesu potomnego.
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Przykladowe wywolanie programu: a.out cal 10 2024. */
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int main(int argc, char **argv)
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{
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char **polecenie;
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long i = 0;
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int pid;
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polecenie = (char **)malloc(sizeof(char *) * argc);
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while (i < argc - 1)
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{
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polecenie[i] = argv[i + 1];
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i++;
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}
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polecenie[i] = NULL;
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if ((pid = fork()) == -1)
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{
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perror("Pomyslne zakonczenie funkcji fork nie jest mozliwe.\n");
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exit(1);
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}
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else
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{
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if (pid == 0)
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{
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execvp(polecenie[0], polecenie);
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}
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else
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{
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waitpid((pid_t)-1, NULL, 0);
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printf("\nPolecenie wraz z argumentami zostalo wykonane.\n");
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}
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}
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printf("polecenie addr: %d\n", getppid());
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free(polecenie);
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return 0;
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}
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