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| author | Eric Andersen <andersen@codepoet.org> | 1999-12-09 06:11:36 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 1999-12-09 06:11:36 +0000 |
| commit | 1792f8c48926450501e19d32e78e140bcb9661c6 (patch) | |
| tree | 14d0304ebb774077e696a9c86117bf43d935d8bb /dd.c | |
| parent | c24db7b591870978fdd2cec8995728d1520c2fa9 (diff) | |
| download | busybox-w32-1792f8c48926450501e19d32e78e140bcb9661c6.tar.gz busybox-w32-1792f8c48926450501e19d32e78e140bcb9661c6.tar.bz2 busybox-w32-1792f8c48926450501e19d32e78e140bcb9661c6.zip | |
Tail now works (costs 6k). Several other updates.
-Erik
Diffstat (limited to 'dd.c')
| -rw-r--r-- | dd.c | 46 |
1 files changed, 1 insertions, 45 deletions
| @@ -48,54 +48,10 @@ static const char dd_usage[] = | |||
| 48 | "\tcount=n\tcopy only n input blocks\n" | 48 | "\tcount=n\tcopy only n input blocks\n" |
| 49 | //"\tskip=n\tskip n input blocks\n" | 49 | //"\tskip=n\tskip n input blocks\n" |
| 50 | "\n" | 50 | "\n" |
| 51 | "BYTES may be suffixed: by k for x1024, b for x512, and w for x2.\n"; | 51 | "BYTES may be suffixed by w (x2), k (x1024), b (x512), or m (x1024^2).\n"; |
| 52 | 52 | ||
| 53 | 53 | ||
| 54 | 54 | ||
| 55 | |||
| 56 | /* | ||
| 57 | * Read a number with a possible multiplier. | ||
| 58 | * Returns -1 if the number format is illegal. | ||
| 59 | */ | ||
| 60 | static long getNum (const char *cp) | ||
| 61 | { | ||
| 62 | long value; | ||
| 63 | |||
| 64 | if (!isDecimal (*cp)) | ||
| 65 | return -1; | ||
| 66 | |||
| 67 | value = 0; | ||
| 68 | |||
| 69 | while (isDecimal (*cp)) | ||
| 70 | value = value * 10 + *cp++ - '0'; | ||
| 71 | |||
| 72 | switch (*cp++) { | ||
| 73 | case 'k': | ||
| 74 | value *= 1024; | ||
| 75 | break; | ||
| 76 | |||
| 77 | case 'b': | ||
| 78 | value *= 512; | ||
| 79 | break; | ||
| 80 | |||
| 81 | case 'w': | ||
| 82 | value *= 2; | ||
| 83 | break; | ||
| 84 | |||
| 85 | case '\0': | ||
| 86 | return value; | ||
| 87 | |||
| 88 | default: | ||
| 89 | return -1; | ||
| 90 | } | ||
| 91 | |||
| 92 | if (*cp) | ||
| 93 | return -1; | ||
| 94 | |||
| 95 | return value; | ||
| 96 | } | ||
| 97 | |||
| 98 | |||
| 99 | extern int dd_main (int argc, char **argv) | 55 | extern int dd_main (int argc, char **argv) |
| 100 | { | 56 | { |
| 101 | const char *inFile = NULL; | 57 | const char *inFile = NULL; |