/* UNIX SMBlib NetBIOS implementation Version 1.0 SMBlib File Access Routines Copyright (C) Richard Sharpe 1996 */ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "smblib-priv.h" #include "../rfcnb/rfcnb.h" /* Open a file with file_name using desired mode and search attr */ /* If File_Handle is null, then create and populate a file handle */ SMB_File *SMB_Open(SMB_Tree_Handle Tree_Handle, SMB_File *File_Handle, char *file_name, WORD mode, WORD search) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; struct SMB_File_Def *file_tmp; /* We allocate a file object and copy some things ... */ file_tmp = File_Handle; if (File_Handle == NULL) { if ((file_tmp = (SMB_File *)malloc(sizeof(SMB_File))) == NULL){ #ifdef DEBUG fprintf(stderr, "Could not allocate file handle space ..."); #endif SMBlib_errno = SMBlibE_NoSpace; return(NULL); } } strncpy(file_tmp -> filename, file_name, sizeof(file_tmp -> filename) - 1); file_tmp -> tree = Tree_Handle; file_tmp -> fid = 0xFFFF; /* Is this an invalid FID? */ param_len = strlen(file_name) + 2; /* 1 for null, 1 for ASCII marker */ pkt_len = SMB_open_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(max(pkt_len, SMB_openr_len)); if (pkt == NULL) { /* Really should do some error handling */ if (File_Handle == NULL) free(file_tmp); SMBlib_errno = SMBlibE_NoSpace; return(NULL); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_open_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBopen; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, Tree_Handle -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, Tree_Handle -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, Tree_Handle -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, Tree_Handle -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 2; SSVAL(SMB_Hdr(pkt), SMB_open_mod_offset, mode); SSVAL(SMB_Hdr(pkt), SMB_open_atr_offset, search); SSVAL(SMB_Hdr(pkt), SMB_open_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_open_buf_offset); *p = SMBasciiID; strcpy(p+1, file_name); p = p + strlen(file_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(Tree_Handle -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Open request\n"); #endif if (File_Handle == NULL) free(file_tmp); RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(NULL); } /* Now get the response ... */ #ifdef DEBUG fprintf(stderr, "Pkt_Len for Open resp = %i\n", pkt_len); #endif if (RFCNB_Recv(Tree_Handle -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to open request\n"); #endif if (File_Handle = NULL) free(file_tmp); RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(NULL); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Open failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif if (File_Handle = NULL) free(file_tmp); SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(NULL); /* Should clean up ... */ } file_tmp -> fid = SVAL(SMB_Hdr(pkt), SMB_openr_fid_offset); file_tmp -> lastmod = IVAL(SMB_Hdr(pkt), SMB_openr_tim_offset); file_tmp -> size = IVAL(SMB_Hdr(pkt), SMB_openr_fsz_offset); file_tmp -> access = SVAL(SMB_Hdr(pkt), SMB_openr_acc_offset); file_tmp -> fileloc = 0; RFCNB_Free_Pkt(pkt); /* Free up this space */ #ifdef DEBUG fprintf(stderr, "SMB_Open succeeded, FID = %i\n", file_tmp -> fid); #endif RFCNB_Free_Pkt(pkt); return(file_tmp); } /* Close the file referred to in File_Handle */ int SMB_Close(SMB_File *File_Handle) { struct SMB_Close_Prot_Def *prot_pkt; struct SMB_Hdr_Def_LM12 *resp_pkt; struct RFCNB_Pkt *pkt; int pkt_len; if (File_Handle == NULL) { /* Error */ /*SMBLIB_errno = SMBLIBE_BadHandle; */ return(-1); } pkt_len = SMB_clos_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_clos_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBclose; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, File_Handle -> tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, File_Handle -> tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, File_Handle -> tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, File_Handle -> tree -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 3; SSVAL(SMB_Hdr(pkt), SMB_clos_fid_offset, File_Handle -> fid); SIVAL(SMB_Hdr(pkt), SMB_clos_tim_offset, 0); SSVAL(SMB_Hdr(pkt), SMB_clos_bcc_offset, 0); /* Now send the packet and get the response ... */ if (RFCNB_Send(File_Handle -> tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Open request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(File_Handle -> tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to open request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Close failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } #ifdef DEBUG fprintf(stderr, "File %s closed successfully.\n", File_Handle -> filename); #endif /* DEBUG */ /* We should deallocate the File_Handle now ... */ File_Handle -> tree = NULL; File_Handle -> filename[0] = 0; File_Handle -> fid = 0xFFFF; RFCNB_Free_Pkt(pkt); free(File_Handle); return(0); } /* Read numbytes into data from the file pointed to by File_Handle from */ /* the offset in the File_Handle. */ int SMB_Read(SMB_File *File_Handle, char *data, int numbytes) { int tot_read; struct RFCNB_Pkt *snd_pkt, *recv_pkt, *data_ptr; int snd_pkt_len, recv_pkt_len, this_read, bytes_left = numbytes; int max_read_data, bytes_read = 0; /* We loop around, reading the data, accumulating it into the buffer */ /* We build an SMB packet, where the data is pointed to by a fragment*/ /* tagged onto the end */ data_ptr = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(0); if (data_ptr == NULL) { /* We should handle the error here */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } snd_pkt_len = SMB_read_len; /* size for the read SMB */ recv_pkt_len = SMB_readr_len + 3; /* + 3 for the datablockID and blklen */ snd_pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(snd_pkt_len); if (snd_pkt == NULL) { RFCNB_Free_Pkt(data_ptr); SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } recv_pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(recv_pkt_len); if (recv_pkt == NULL) { RFCNB_Free_Pkt(snd_pkt); RFCNB_Free_Pkt(data_ptr); SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Put the recv pkt together */ recv_pkt -> next = data_ptr; /* Now build the read request and the receive packet etc ... */ bzero(SMB_Hdr(snd_pkt), SMB_read_len); SIVAL(SMB_Hdr(snd_pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(snd_pkt) + SMB_hdr_com_offset) = SMBread; SSVAL(SMB_Hdr(snd_pkt), SMB_hdr_pid_offset, File_Handle -> tree -> con -> pid); SSVAL(SMB_Hdr(snd_pkt), SMB_hdr_tid_offset, File_Handle -> tree -> tid); SSVAL(SMB_Hdr(snd_pkt), SMB_hdr_mid_offset, File_Handle -> tree -> con -> mid); SSVAL(SMB_Hdr(snd_pkt), SMB_hdr_uid_offset, File_Handle -> tree -> con -> uid); *(SMB_Hdr(snd_pkt) + SMB_hdr_wct_offset) = 5; SSVAL(SMB_Hdr(snd_pkt), SMB_read_fid_offset, File_Handle -> fid); max_read_data = (File_Handle -> tree -> mbs) - recv_pkt_len; while (bytes_left > 0) { this_read = (bytes_left > max_read_data?max_read_data: bytes_left); SSVAL(SMB_Hdr(snd_pkt), SMB_read_cnt_offset, this_read); SIVAL(SMB_Hdr(snd_pkt), SMB_read_ofs_offset, File_Handle -> fileloc); SSVAL(SMB_Hdr(snd_pkt), SMB_read_clf_offset, 0x0); SSVAL(SMB_Hdr(snd_pkt), SMB_read_bcc_offset, 0x0); /* Now send the packet and wait for a response */ if (RFCNB_Send(File_Handle -> tree -> con -> Trans_Connect, snd_pkt, snd_pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending read request\n"); #endif data_ptr -> data = NULL; data_ptr -> len = 0; RFCNB_Free_Pkt(recv_pkt); RFCNB_Free_Pkt(snd_pkt); SMBlib_errno = SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... first point the data portion to the right */ /* place in the read buffer ... what we are doing is ugly */ data_ptr -> data = (data + bytes_read); data_ptr -> len = this_read; if (RFCNB_Recv(File_Handle -> tree -> con -> Trans_Connect, recv_pkt, recv_pkt_len + this_read) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to write\n"); #endif data_ptr -> len = 0; data_ptr -> data = NULL; RFCNB_Free_Pkt(recv_pkt); RFCNB_Free_Pkt(snd_pkt); SMBlib_errno = SMBlibE_RecvFailed; return(SMBlibE_BAD); } if (CVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Read failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(recv_pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset); data_ptr -> data = NULL; data_ptr -> len = 0; RFCNB_Free_Pkt(recv_pkt); RFCNB_Free_Pkt(snd_pkt); SMBlib_errno = SMBlibE_Remote; return(-1); } /* Ok, that worked, so update some things here ... */ bytes_read = bytes_read + SVAL(SMB_Hdr(recv_pkt), SMB_readr_cnt_offset); bytes_left = bytes_left - SVAL(SMB_Hdr(recv_pkt), SMB_readr_cnt_offset); } /* Now free those packet headers that we allocated ... */ data_ptr -> data = NULL; /* Since recv_pkt points to data_ptr */ data_ptr -> len = 0; /* it is freed too */ RFCNB_Free_Pkt(recv_pkt); RFCNB_Free_Pkt(snd_pkt); return(bytes_read); } /* Lseek seeks just like the UNIX version does ... */ off_t SMB_Lseek(SMB_File *File_Handle, off_t offset, int whence) { /* We should check that the file handle is kosher ... We may also blow up if we get a 64 bit offset ... should avoid wrap-around ... */ switch (whence) { case SEEK_SET: File_Handle -> fileloc = offset; break; case SEEK_CUR: File_Handle -> fileloc = File_Handle -> fileloc + offset; break; case SEEK_END: File_Handle -> fileloc = File_Handle -> size + offset; break; default: return(-1); } return(File_Handle -> fileloc); } /* Write numbytes from data to the file pointed to by the File_Handle at */ /* the offset in the File_Handle. */ int SMB_Write(SMB_File *File_Handle, char *data, int numbytes) { int tot_written = 0; struct RFCNB_Pkt *pkt, *data_ptr; int pkt_len, i, this_write, max_write_data, bytes_left = numbytes; /* We loop around, writing the data, accumulating what was written */ /* We build an SMB packet, where the data is pointed to by a fragment */ /* tagged onto the end ... */ data_ptr = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(0); if (data_ptr == NULL) { SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } pkt_len = SMB_write_len + 3; /* + 3 for the datablockID and blklen */ pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { RFCNB_Free_Pkt(data_ptr); SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now init the things that will be the same across the possibly multiple packets to write this data. */ bzero(SMB_Hdr(pkt), SMB_write_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBwrite; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, File_Handle -> tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, File_Handle -> tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, File_Handle -> tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, File_Handle -> tree -> con -> uid); SSVAL(SMB_Hdr(pkt), SMB_write_fid_offset, File_Handle -> fid); /* We will program this as send/response for the moment, but if we could only send the second block before getting the first, we could speed things up a bit ... */ max_write_data = (File_Handle -> tree -> mbs) - pkt_len; /* the 3 is for the data block id and length that preceeds the data */ while (bytes_left > 0) { /* bytes to write? */ this_write = (bytes_left > max_write_data?max_write_data:bytes_left); data_ptr -> next = NULL; data_ptr -> len = this_write; data_ptr -> data = data + tot_written; pkt -> next = data_ptr; /* link the data on the end */ SSVAL(SMB_Hdr(pkt), SMB_hdr_flg_offset, 0); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 5; SSVAL(SMB_Hdr(pkt), SMB_write_fid_offset, File_Handle -> fid); SSVAL(SMB_Hdr(pkt), SMB_write_cnt_offset, this_write); SIVAL(SMB_Hdr(pkt), SMB_write_ofs_offset, File_Handle -> fileloc); SSVAL(SMB_Hdr(pkt), SMB_write_clf_offset, 0); SSVAL(SMB_Hdr(pkt), SMB_write_bcc_offset, (this_write + 3)); *(SMB_Hdr(pkt) + SMB_write_buf_offset) = SMBdatablockID; SSVAL(SMB_Hdr(pkt), SMB_write_buf_offset + 1, this_write); /* Now send the packet and wait for a response */ if (RFCNB_Send(File_Handle -> tree -> con -> Trans_Connect, pkt, pkt_len + this_write) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending write request\n"); #endif data_ptr -> next = NULL; data_ptr -> len = 0; RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(-1); } /* Now get the response ... */ if (RFCNB_Recv(File_Handle -> tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to write\n"); #endif data_ptr -> next = NULL; data_ptr -> len = 0; RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(-1); } if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Write failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); data_ptr -> data = NULL; data_ptr -> len = 0; RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); } /* Ok, that worked, so update some things here ... */ tot_written = tot_written + this_write; bytes_left = bytes_left - this_write; /* Assume that it is ok to update this now, but what about only part */ /* of the write succeeding? */ File_Handle -> fileloc = File_Handle -> fileloc + this_write; #ifdef DEBUG fprintf(stderr, "--This_write = %i, bytes_left = %i\n", this_write, bytes_left); #endif } /* Let's get rid of those packet headers we are using ... */ data_ptr -> data = NULL; pkt -> next = NULL; RFCNB_Free_Pkt(pkt); return(tot_written); } /* Create file on the server with name file_name and attributes search */ SMB_File *SMB_Create(SMB_Tree_Handle Tree_Handle, SMB_File *File_Handle, char *file_name, WORD search) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; struct SMB_File_Def *file_tmp; /* We allocate a file object and copy some things ... */ file_tmp = File_Handle; if (File_Handle == NULL) { if ((file_tmp = (SMB_File *)malloc(sizeof(SMB_File))) == NULL){ #ifdef DEBUG fprintf(stderr, "Could not allocate file handle space ..."); #endif SMBlib_errno = SMBlibE_NoSpace; return(NULL); } } strncpy(file_tmp -> filename, file_name, sizeof(file_tmp -> filename)); file_tmp -> tree = Tree_Handle; file_tmp -> fid = 0xFFFF; /* Is this an invalid FID? */ param_len = strlen(file_name) + 2; /* 1 for null, 1 for ASCII marker */ pkt_len = SMB_creat_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ if (File_Handle == NULL) free(file_tmp); SMBlib_errno = SMBlibE_NoSpace; return(NULL); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_creat_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBcreate; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, Tree_Handle -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, Tree_Handle -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, Tree_Handle -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, Tree_Handle -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 3; SSVAL(SMB_Hdr(pkt), SMB_creat_atr_offset, search); SSVAL(SMB_Hdr(pkt), SMB_creat_tim_offset, 0); SSVAL(SMB_Hdr(pkt), SMB_creat_dat_offset, 0); SSVAL(SMB_Hdr(pkt), SMB_creat_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_creat_buf_offset); *p = SMBasciiID; strcpy(p+1, file_name); p = p + strlen(file_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(Tree_Handle -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Open request\n"); #endif if (File_Handle == NULL) free(file_tmp); RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(NULL); } /* Now get the response ... */ #ifdef DEBUG fprintf(stderr, "Pkt_Len for Create resp = %i\n", pkt_len); #endif if (RFCNB_Recv(Tree_Handle -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to create request\n"); #endif if (File_Handle == NULL) free(file_tmp); RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(NULL); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Create failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif if (File_Handle == NULL) free(file_tmp); SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(NULL); /* Should clean up ... */ } file_tmp -> fid = SVAL(SMB_Hdr(pkt), SMB_creatr_fid_offset); file_tmp -> lastmod = 0; file_tmp -> size = 0; file_tmp -> access = SMB_AMODE_OPENRW; file_tmp -> fileloc = 0; RFCNB_Free_Pkt(pkt); /* Free up this space */ #ifdef DEBUG fprintf(stderr, "SMB_Create succeeded, FID = %i\n", file_tmp -> fid); #endif return(file_tmp); } /* Delete the file passed in as file_name. */ int SMB_Delete(SMB_Tree_Handle tree, char *file_name, WORD search) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; param_len = strlen(file_name) + 2; pkt_len = SMB_delet_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_delet_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBunlink; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, tree -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 1; SIVAL(SMB_Hdr(pkt), SMB_delet_sat_offset, search); SSVAL(SMB_Hdr(pkt), SMB_delet_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_delet_buf_offset); *p = SMBasciiID; strcpy(p+1, file_name); p = p + strlen(file_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Delete request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to delete request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Delete failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } #ifdef DEBUG fprintf(stderr, "File %s deleted successfully.\n", file_name); #endif /* DEBUG */ RFCNB_Free_Pkt(pkt); return(0); } /* Create the directory passed in as dir_name */ int SMB_Create_Dir(SMB_Tree_Handle tree, char *dir_name) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; param_len = strlen(dir_name) + 2; /* + null and + asciiID */ pkt_len = SMB_creatdir_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_creatdir_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBmkdir; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, tree -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 0; SSVAL(SMB_Hdr(pkt), SMB_creatdir_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_creatdir_buf_offset); *p = SMBasciiID; strcpy(p+1, dir_name); p = p + strlen(dir_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Create Dir request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to Create Dir request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Create_Dir failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } #ifdef DEBUG fprintf(stderr, "Directory %s created successfully.\n", dir_name); #endif RFCNB_Free_Pkt(pkt); return(0); } /* Delete the directory passed as dir_name, as long as it is empty ... */ int SMB_Delete_Dir(SMB_Tree_Handle tree, char *dir_name) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; param_len = strlen(dir_name) + 2; /* + null and + asciiID */ pkt_len = SMB_deletdir_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_deletdir_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBrmdir; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, tree -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 0; SSVAL(SMB_Hdr(pkt), SMB_deletdir_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_deletdir_buf_offset); *p = SMBasciiID; strcpy(p+1, dir_name); p = p + strlen(dir_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Delete Dir request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to Delete Dir request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Delete_Dir failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } #ifdef DEBUG fprintf(stderr, "Directory %s deleted successfully.\n", dir_name); #endif RFCNB_Free_Pkt(pkt); return(0); } /* Check for the existence of the directory in dir_name */ int SMB_Check_Dir(SMB_Tree_Handle tree, char *dir_name) { struct RFCNB_Pkt *pkt; int pkt_len, param_len; char *p; param_len = strlen(dir_name) + 2; /* + null and + asciiID */ pkt_len = SMB_checkdir_len + param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_checkdir_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBchkpth; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, tree -> con -> uid); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 0; SSVAL(SMB_Hdr(pkt), SMB_checkdir_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_checkdir_buf_offset); *p = SMBasciiID; strcpy(p+1, dir_name); p = p + strlen(dir_name); *(p+1) = 0; /* plug in a null ... */ /* Now send the packet and get the response ... */ if (RFCNB_Send(tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending Check Dir Path request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(tree -> con -> Trans_Connect, pkt, pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to Check Dir request\n"); #endif RFCNB_Free_Pkt(pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Check_Dir failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } #ifdef DEBUG fprintf(stderr, "Directory %s checked successfully.\n", dir_name); #endif RFCNB_Free_Pkt(pkt); return(0); } /* Search directory for the files listed ... Relative to the TID in the */ /* Con Handle. Return number of Dir Ents returned as the result. */ int SMB_Search(SMB_Tree_Handle tree, char *dir_name, WORD search, SMB_CP_dirent *dirents, int direntc, char *resumekey, int resumekey_len) { struct RFCNB_Pkt *pkt, *recv_pkt; int pkt_len, param_len, recv_param_len, recv_pkt_len, ret_count, i; char *p; param_len = strlen(dir_name) + 2 + resumekey_len + 3; /* You have to know */ pkt_len = SMB_search_len + param_len; recv_param_len = direntc * SMB_searchr_dirent_len + 3; recv_pkt_len = SMB_searchr_len + recv_param_len; pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(pkt_len); if (pkt == NULL) { /* Really should do some error handling */ SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } recv_pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(recv_pkt_len); if (recv_pkt == NULL) { /* Really should do some error handling */ RFCNB_Free_Pkt(pkt); SMBlib_errno = SMBlibE_NoSpace; return(SMBlibE_BAD); } /* Now plug in the bits we need */ bzero(SMB_Hdr(pkt), SMB_search_len); SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */ *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBsearch; SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, tree -> con -> pid); SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, tree -> tid); SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, tree -> con -> mid); SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, tree -> con -> uid); /* Tell server we known about non-dos names and extended attibutes */ SSVAL(SMB_Hdr(pkt), SMB_hdr_flg2_offset, (SMB_FLG2_NON_DOS | SMB_FLG2_EXT_ATR)); *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 2; SSVAL(SMB_Hdr(pkt), SMB_search_mdc_offset, direntc); /* How many we want */ SSVAL(SMB_Hdr(pkt), SMB_search_atr_offset, search); SSVAL(SMB_Hdr(pkt), SMB_search_bcc_offset, param_len); /* Now plug in the file name ... */ p = (char *)(SMB_Hdr(pkt) + SMB_search_buf_offset); *p = SMBasciiID; strcpy(p+1, dir_name); p = p + strlen(dir_name) + 2; /* Skip the null */ *p = SMBvariableblockID; p = p + 1; /* And now the resume key */ SSVAL(p, 0, resumekey_len); p = p + 2; bcopy(resumekey, p, resumekey_len); /* Now send the packet and get the response ... */ if (RFCNB_Send(tree -> con -> Trans_Connect, pkt, pkt_len) < 0){ #ifdef DEBUG fprintf(stderr, "Error sending search request\n"); #endif RFCNB_Free_Pkt(pkt); RFCNB_Free_Pkt(recv_pkt); SMBlib_errno = -SMBlibE_SendFailed; return(SMBlibE_BAD); } /* Now get the response ... */ if (RFCNB_Recv(tree -> con -> Trans_Connect, recv_pkt, recv_pkt_len) < 0) { #ifdef DEBUG fprintf(stderr, "Error receiving response to Check Dir request\n"); #endif RFCNB_Free_Pkt(pkt); RFCNB_Free_Pkt(recv_pkt); SMBlib_errno = -SMBlibE_RecvFailed; return(SMBlibE_BAD); } /* Now parse the response and pass back any error ... */ if (CVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */ #ifdef DEBUG fprintf(stderr, "SMB_Check_Dir failed with errorclass = %i, Error Code = %i\n", CVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset), SVAL(SMB_Hdr(recv_pkt), SMB_hdr_err_offset)); #endif SMBlib_SMB_Error = IVAL(SMB_Hdr(recv_pkt), SMB_hdr_rcls_offset); RFCNB_Free_Pkt(pkt); RFCNB_Free_Pkt(recv_pkt); SMBlib_errno = SMBlibE_Remote; return(SMBlibE_BAD); /* Should clean up ... */ } /* Now copy the results into the user's structure */ ret_count = SVAL(SMB_Hdr(recv_pkt), SMB_searchr_dec_offset); p = SMB_Hdr(recv_pkt) + SMB_searchr_buf_offset + 3; /* Hmmm, should check that we have the right number of bytes ... */ for (i = 0; i < ret_count; i++) { bcopy(p, dirents[i].resume_key, 21); p = p + 21; dirents[i].file_attributes = (unsigned char)*p; p = p + 1; dirents[i].date_time = IVAL(p, 0); /* Should this be IVAL? */ p = p + 4; dirents[i].size = IVAL(p, 0); p = p + 4; bcopy(p, dirents[i].filename, 13); /* Copy in file name */ p = p + 13; } return(ret_count); }