Enable os dependend stdio size estimation
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@ -1 +1 @@
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#define Cdrskin_timestamP "2007.09.09.093637"
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#define Cdrskin_timestamP "2007.09.09.133136"
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@ -8,6 +8,8 @@
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include <stdlib.h>
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#include "init.h"
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#include "sg.h"
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@ -48,6 +48,8 @@ sg_issue_command() sends a SCSI command to the drive, receives reply,
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sg_obtain_scsi_adr() tries to obtain SCSI address parameters.
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burn_os_stdio_capacity() estimates the emulated media space of stdio-drives.
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Porting hints are marked by the text "PORTING:".
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Send feedback to libburn-hackers@pykix.org .
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@ -74,6 +76,10 @@ Send feedback to libburn-hackers@pykix.org .
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#include <err.h> /* XXX */
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/* ts A70909 : >>> untestet yet wether this compiles */
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#include <sys/statvfs.h>
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/** PORTING : ------ libburn portable headers and definitions ----- */
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#include "transport.h"
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@ -557,3 +563,69 @@ int sg_is_enumerable_adr(char* adr)
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return (0);
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}
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/* ts A70909 */
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/** Estimate the potential payload capacity of a file address.
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@param path The address of the file to be examined. If it does not
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exist yet, then the directory will be inquired.
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@param bytes This value gets modified if an estimation is possible
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@return -2 = cannot perform necessary operations on file object
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-1 = neither path nor dirname of path exist
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0 = could not estimate size capacity of file object
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1 = estimation has been made, bytes was set
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*/
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int burn_os_stdio_capacity(char *path, off_t *bytes)
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{
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struct stat stbuf;
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struct statvfs vfsbuf;
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char testpath[4096], *cpt;
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long blocks;
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int open_mode = O_RDWR, fd, ret;
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off_t add_size = 0;
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testpath[0] = 0;
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blocks = *bytes / 512;
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if (stat(path, &stbuf) == -1) {
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strcpy(testpath, path);
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cpt = strrchr(testpath, '/');
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if(cpt == NULL)
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strcpy(testpath, ".");
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else if(cpt == testpath)
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testpath[1] = 0;
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else
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*cpt = 0;
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if (stat(testpath, &stbuf) == -1)
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return -1;
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#ifdef Libburn_if_this_was_linuX
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} else if(S_ISBLK(stbuf.st_mode)) {
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if(burn_sg_open_o_excl)
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open_mode |= O_EXCL;
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fd = open(path, open_mode);
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if (fd == -1)
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return -2;
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ret = ioctl(fd, BLKGETSIZE, &blocks);
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close(fd);
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if (ret == -1)
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return -2;
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*bytes = ((off_t) blocks) * (off_t) 512;
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#endif /* Libburn_if_this_was_linuX */
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} else if(S_ISREG(stbuf.st_mode)) {
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add_size = stbuf.st_blocks * (off_t) 512;
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strcpy(testpath, path);
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} else
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return 0;
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if (testpath[0]) {
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if (statvfs(testpath, &vfsbuf) == -1)
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return -2;
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*bytes = add_size + ((off_t) vfsbuf.f_bsize) *
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(off_t) vfsbuf.f_bavail;
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}
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return 1;
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}
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@ -18,6 +18,10 @@
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#include <err.h> /* XXX */
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/* ts A70909 : >>> untestet yet wether this compiles */
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#include <sys/statvfs.h>
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#include "transport.h"
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#include "drive.h"
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#include "sg.h"
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@ -598,3 +602,69 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
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return 1;
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}
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/* ts A70909 */
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/** Estimate the potential payload capacity of a file address.
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@param path The address of the file to be examined. If it does not
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exist yet, then the directory will be inquired.
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@param bytes This value gets modified if an estimation is possible
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@return -2 = cannot perform necessary operations on file object
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-1 = neither path nor dirname of path exist
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0 = could not estimate size capacity of file object
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1 = estimation has been made, bytes was set
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*/
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int burn_os_stdio_capacity(char *path, off_t *bytes)
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{
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struct stat stbuf;
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struct statvfs vfsbuf;
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char testpath[4096], *cpt;
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long blocks;
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int open_mode = O_RDWR, fd, ret;
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off_t add_size = 0;
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testpath[0] = 0;
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blocks = *bytes / 512;
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if (stat(path, &stbuf) == -1) {
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strcpy(testpath, path);
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cpt = strrchr(testpath, '/');
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if(cpt == NULL)
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strcpy(testpath, ".");
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else if(cpt == testpath)
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testpath[1] = 0;
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else
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*cpt = 0;
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if (stat(testpath, &stbuf) == -1)
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return -1;
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#ifdef Libburn_if_this_was_linuX
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} else if(S_ISBLK(stbuf.st_mode)) {
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if(burn_sg_open_o_excl)
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open_mode |= O_EXCL;
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fd = open(path, open_mode);
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if (fd == -1)
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return -2;
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ret = ioctl(fd, BLKGETSIZE, &blocks);
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close(fd);
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if (ret == -1)
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return -2;
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*bytes = ((off_t) blocks) * (off_t) 512;
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#endif /* Libburn_if_this_was_linuX */
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} else if(S_ISREG(stbuf.st_mode)) {
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add_size = stbuf.st_blocks * (off_t) 512;
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strcpy(testpath, path);
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} else
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return 0;
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if (testpath[0]) {
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if (statvfs(testpath, &vfsbuf) == -1)
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return -2;
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*bytes = add_size + ((off_t) vfsbuf.f_bsize) *
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(off_t) vfsbuf.f_bavail;
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}
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return 1;
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}
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@ -48,6 +48,8 @@ sg_issue_command() sends a SCSI command to the drive, receives reply,
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sg_obtain_scsi_adr() tries to obtain SCSI address parameters.
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burn_os_stdio_capacity() estimates the emulated media space of stdio-drives.
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Porting hints are marked by the text "PORTING:".
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Send feedback to libburn-hackers@pykix.org .
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@ -73,6 +75,11 @@ Hint: You should also look into sg-freebsd-port.c, which is a younger and
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#include <stdlib.h>
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#include <sys/utsname.h>
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#include <scsi/scsi.h>
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#include <sys/statvfs.h>
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/* for ioctl(BLKGETSIZE) */
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#include <linux/fs.h>
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#include <scsi/sg.h>
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/* Values within sg_io_hdr_t indicating success after ioctl(SG_IO) : */
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@ -1352,3 +1359,62 @@ int sg_is_enumerable_adr(char *adr)
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}
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/* ts A70909 */
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/** Estimate the potential payload capacity of a file address.
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@param path The address of the file to be examined. If it does not
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exist yet, then the directory will be inquired.
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@param bytes The pointed value gets modified, but only if an estimation is
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possible.
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@return -2 = cannot perform necessary operations on file object
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-1 = neither path nor dirname of path exist
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0 = could not estimate size capacity of file object
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1 = estimation has been made, bytes was set
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*/
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int burn_os_stdio_capacity(char *path, off_t *bytes)
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{
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struct stat stbuf;
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struct statvfs vfsbuf;
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char testpath[4096], *cpt;
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long blocks;
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int open_mode = O_RDWR, fd, ret;
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off_t add_size = 0;
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testpath[0] = 0;
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blocks = *bytes / 512;
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if (stat(path, &stbuf) == -1) {
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strcpy(testpath, path);
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cpt = strrchr(testpath, '/');
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if(cpt == NULL)
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strcpy(testpath, ".");
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else if(cpt == testpath)
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testpath[1] = 0;
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else
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*cpt = 0;
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if (stat(testpath, &stbuf) == -1)
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return -1;
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} else if(S_ISBLK(stbuf.st_mode)) {
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if(burn_sg_open_o_excl)
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open_mode |= O_EXCL;
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fd = open(path, open_mode);
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if (fd == -1)
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return -2;
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ret = ioctl(fd, BLKGETSIZE, &blocks);
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close(fd);
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if (ret == -1)
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return -2;
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*bytes = ((off_t) blocks) * (off_t) 512;
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} else if(S_ISREG(stbuf.st_mode)) {
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add_size = stbuf.st_blocks * (off_t) 512;
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strcpy(testpath, path);
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} else
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return 0;
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if (testpath[0]) {
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if (statvfs(testpath, &vfsbuf) == -1)
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return -2;
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*bytes = add_size + ((off_t) vfsbuf.f_bsize) *
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(off_t) vfsbuf.f_bavail;
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}
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return 1;
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}
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@ -31,4 +31,6 @@ int scsi_enumerate_drives(void);
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int sg_drive_is_open(struct burn_drive * d);
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int burn_os_stdio_capacity(char *path, off_t *bytes);
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#endif /* __SG */
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