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#include <errno.h>
#include <fcntl.h>
#include <popt.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
#include <syslog.h>
struct req {
FILE * f;
pid_t child;
};
struct req lastRequest = { NULL, -1 };
FILE * popen(const char * command, const char * type) {
char ** argv;
int argc;
int p[2];
pid_t child;
if (strcmp(type, "r") || lastRequest.f)
return NULL;
if (poptParseArgvString(command, &argc, (const char ***) &argv)) {
return NULL;
}
pipe(p);
if (!(child = fork())) {
int i;
char ** args;
close(p[0]);
dup2(p[1], 1);
dup2(p[1], 2);
close(p[1]);
args = malloc(sizeof(*args) * (argc + 1));
for (i = 0; i < argc; i++) {
args[i] = argv[i];
}
args[argc] = NULL;
execv("/sbin/insmod", args);
exit(1);
}
free(argv);
close(p[1]);
lastRequest.f = fdopen(p[0], "r");
lastRequest.child = child;
return lastRequest.f;
}
int pclose(FILE * stream) {
int status;
if (stream != lastRequest.f) return -1;
fclose(stream);
waitpid(lastRequest.child, &status, 0);
lastRequest.f = NULL;
return status;
}
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