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#include "lslib.h"
#include <pwd.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
void* xalloc(size_t size) {
void *ptr = malloc(size);
if (ptr == NULL && size != 0) die();
return ptr;
}
void* xrealloc(void* ptr, size_t size) {
ptr = realloc(ptr, size);
if (ptr == NULL && size != 0) die();
return ptr;
}
void* xzalloc(size_t size) {
void* ptr = xalloc(size);
memset(ptr, 0, size);
return ptr;
}
void xsetenv(const char *name, const char *value) {
if (setenv(name, value, 1))
error("cannot set env");
}
void xsetuid(uid_t uid) {
if (setuid(uid))
error("cannot set uid");
}
void xsetgid(gid_t gid) {
if (setgid(gid))
error("cannot set gid");
}
struct passwd* xgetpwnam(char* name) {
struct passwd* pw;
pw = getpwnam(name);
if (!pw)
error("cannot get user: '%s'", name);
return pw;
}
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