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#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <inttypes.h>
#include <popt.h>
#include <netapi.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <iconv.h>
#ifndef MIN
#define MIN(a,b) ((a)<(b)?(a):(b))
#endif
#include "common.h"
void popt_common_callback(poptContext con,
enum poptCallbackReason reason,
const struct poptOption *opt,
const char *arg, const void *data)
{
struct libnetapi_ctx *ctx = NULL;
libnetapi_getctx(&ctx);
if (reason == POPT_CALLBACK_REASON_PRE) {
}
if (reason == POPT_CALLBACK_REASON_POST) {
}
if (!opt) {
return;
}
switch (opt->val) {
case 'U': {
char *puser = strdup(arg);
char *p = NULL;
if ((p = strchr(puser,'%'))) {
size_t len;
*p = 0;
libnetapi_set_username(ctx, puser);
libnetapi_set_password(ctx, p+1);
len = strlen(p+1);
memset(strchr(arg,'%')+1,'X',len);
} else {
libnetapi_set_username(ctx, puser);
}
free(puser);
break;
}
case 'd':
libnetapi_set_debuglevel(ctx, arg);
break;
case 'p':
libnetapi_set_password(ctx, arg);
break;
case 'k':
libnetapi_set_use_kerberos(ctx);
break;
}
}
struct poptOption popt_common_netapi_examples[] = {
{
.argInfo = POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST,
.arg = (void *)popt_common_callback,
},
{
.longName = "user",
.shortName = 'U',
.argInfo = POPT_ARG_STRING,
.val = 'U',
.descrip = "Username used for connection",
.argDescrip = "USERNAME",
},
{
.longName = "password",
.shortName = 'p',
.argInfo = POPT_ARG_STRING,
.val = 'p',
.descrip = "Password used for connection",
.argDescrip = "PASSWORD",
},
{
.longName = "debuglevel",
.shortName = 'd',
.argInfo = POPT_ARG_STRING,
.val = 'd',
.descrip = "Debuglevel",
.argDescrip = "DEBUGLEVEL",
},
{
.longName = "kerberos",
.shortName = 'k',
.argInfo = POPT_ARG_NONE,
.val = 'k',
.descrip = "Use Kerberos",
},
POPT_TABLEEND
};
char *netapi_read_file(const char *filename, uint32_t *psize)
{
int fd;
FILE *file = NULL;
char *p = NULL;
size_t size = 0;
size_t chunk = 1024;
size_t maxsize = SIZE_MAX;
int err;
fd = open(filename, O_RDONLY);
if (fd == -1) {
goto fail;
}
file = fdopen(fd, "r");
if (file == NULL) {
goto fail;
}
while (size < maxsize) {
char *tmp = NULL;
size_t newbufsize;
size_t nread;
chunk = MIN(chunk, (maxsize - size));
newbufsize = size + (chunk+1); /* chunk+1 can't overflow */
if (newbufsize < size) {
goto fail; /* overflow */
}
tmp = realloc(p, sizeof(char) * newbufsize);
if (tmp == NULL) {
free(p);
p = NULL;
goto fail;
}
p = tmp;
nread = fread(p+size, 1, chunk, file);
size += nread;
if (nread != chunk) {
break;
}
}
err = ferror(file);
if (err != 0) {
free(p);
goto fail;
}
p[size] = '\0';
if (psize != NULL) {
*psize = size;
}
fail:
if (file != NULL) {
fclose(file);
}
if (fd >= 0) {
close(fd);
}
return p;
}
int netapi_save_file(const char *fname, void *ppacket, size_t length)
{
int fd;
fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (fd == -1) {
perror(fname);
return -1;
}
if (write(fd, ppacket, length) != length) {
fprintf(stderr,"Failed to write %s\n", fname);
close(fd);
return -1;
}
close(fd);
return 0;
}
int netapi_save_file_ucs2(const char *fname, const char *str)
{
char *str_p = NULL;
char *ucs2_str = NULL;
size_t str_len = 0;
size_t ucs2_str_len = 0;
iconv_t cd;
int ret;
char *start;
size_t start_len;
char *p;
str_len = strlen(str) + 1;
ucs2_str_len = 2 * str_len; /* room for ucs2 */
ucs2_str_len += 2;
ucs2_str = calloc(ucs2_str_len, sizeof(char));
if (ucs2_str == NULL) {
return -1;
}
p = ucs2_str; /* store for free */
ucs2_str[0] = 0xff;
ucs2_str[1] = 0xfe;
start = ucs2_str;
start_len = ucs2_str_len;
ucs2_str += 2;
ucs2_str_len -= 2;
cd = iconv_open("UTF-16LE", "ASCII");
if (cd == (iconv_t)-1) {
free(p);
return -1;
}
str_p = (void *)((uintptr_t)str);
ret = iconv(cd,
&str_p,
&str_len,
&ucs2_str,
&ucs2_str_len);
if (ret == -1) {
free(p);
return -1;
}
iconv_close(cd);
ret = netapi_save_file(fname, start, start_len);
free(p);
return ret;
}
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