FreeCalypso > hg > freecalypso-sw
annotate target-utils/libcommon/hexarg.c @ 356:4e0aa166baa5
target-utils/tf-breakin: payload written for the TF C139 break-in attempt
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Thu, 15 May 2014 09:18:23 +0000 |
parents | f4fc449a64ea |
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rev | line source |
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f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /* |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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2 * Many commands take hex arguments. This module contains the parse_hexarg() |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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3 * function, which is a wrapper around strtoul that performs some additional |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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4 * checks. |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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5 */ |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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6 |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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7 #include <sys/types.h> |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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8 #include <ctype.h> |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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9 #include <stdlib.h> |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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10 |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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11 parse_hexarg(arg, maxdigits, valp) |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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12 char *arg; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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13 int maxdigits; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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14 u_long *valp; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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15 { |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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16 char *cp = arg, *bp; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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17 int len; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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18 |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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19 if (cp[0] == '0' && (cp[1] == 'x' || cp[1] == 'X')) |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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20 cp += 2; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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21 for (bp = cp; *cp; cp++) |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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22 if (!isxdigit(*cp)) |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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23 return(-1); |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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24 len = cp - bp; |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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25 if (len < 1 || len > maxdigits) |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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26 return(-1); |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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27 *valp = strtoul(arg, 0, 16); |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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28 return(0); |
f4fc449a64ea
target-utils libcommon infrastructure for interactive commands
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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29 } |