diff options
Diffstat (limited to 'coreutils/dd.c')
| -rw-r--r-- | coreutils/dd.c | 41 |
1 files changed, 6 insertions, 35 deletions
diff --git a/coreutils/dd.c b/coreutils/dd.c index 6df2588ca..787e5da95 100644 --- a/coreutils/dd.c +++ b/coreutils/dd.c @@ -44,7 +44,6 @@ extern int dd_main(int argc, char **argv) { char *inFile = NULL; char *outFile = NULL; - char *cp; int inFd; int outFd; int inCc = 0; @@ -135,42 +134,14 @@ extern int dd_main(int argc, char **argv) lseek(inFd, skipBlocks * blockSize, SEEK_SET); lseek(outFd, seekBlocks * blockSize, SEEK_SET); - // - //TODO: Convert to using fullRead & fullWrite - // from utility.c - // -Erik - while (outTotal < count * blockSize) { - inCc = read(inFd, buf, blockSize); - if (inCc < 0) { - perror(inFile); - goto cleanup; - } else if (inCc == 0) { - goto cleanup; - } - intotal += inCc; - cp = buf; - - while (intotal > outTotal) { - if (outTotal + inCc > count * blockSize) - inCc = count * blockSize - outTotal; - outCc = write(outFd, cp, inCc); - if (outCc < 0) { - perror(outFile); - goto cleanup; - } else if (outCc == 0) { - goto cleanup; - } - - inCc -= outCc; - cp += outCc; - outTotal += outCc; - } - } - if (inCc < 0) - perror(inFile); + while ((inCc = read(inFd, buf, sizeof(buf))) > 0) { + intotal +=inCc; + if ((outCc = fullWrite(outFd, buf, inCc)) < 0) + break; + outTotal += outCc; + } - cleanup: /* Note that we are not freeing memory or closing * files here, to save a few bytes. */ #ifdef BB_FEATURE_CLEAN_UP |