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#define _BSD_SOURCE
#define _DEFAULT_SOURCE
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#ifndef PATH_MAX
#define PATH_MAX 2048
#endif
int main (int argc, char *argv[]) {
FILE *fp;
char path[PATH_MAX];
if (argc != 2) {
fprintf(stderr, "Usage: %s cmd\n", argv[0]);
exit(2);
}
fp = popen(argv[1], "r");
if (fp == NULL) {
perror("popen");
exit(1);
}
while (fgets(path, PATH_MAX, fp) != NULL) {
printf("%s", path);
}
pclose(fp);
return 0;
}
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