author | Stefan Teleman <stefan.teleman@oracle.com> |
Thu, 13 Dec 2012 15:52:21 -0800 | |
changeset 1082 | 6d49548fa9da |
permissions | -rw-r--r-- |
1082
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1 |
BASH PATCH REPORT |
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================= |
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Bash-Release: 4.2 |
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Patch-ID: bash42-003 |
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Bug-Reported-by: Clark J. Wang <[email protected]> |
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Bug-Reference-ID: <[email protected]> |
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-02/msg00136.html |
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Bug-Description: |
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When using the pattern replacement and pattern removal word expansions, bash |
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miscalculates the possible match length in the presence of an unescaped left |
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bracket without a closing right bracket, resulting in a failure to match |
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the pattern. |
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Patch (apply with `patch -p0'): |
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*** ../bash-4.2-patched/lib/glob/gmisc.c 2011-02-05 16:11:17.000000000 -0500 |
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--- lib/glob/gmisc.c 2011-02-18 23:53:42.000000000 -0500 |
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*************** |
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*** 78,83 **** |
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size_t wmax; |
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{ |
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! wchar_t wc, *wbrack; |
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! int matlen, t, in_cclass, in_collsym, in_equiv; |
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|
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if (*wpat == 0) |
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--- 78,83 ---- |
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size_t wmax; |
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{ |
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! wchar_t wc; |
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! int matlen, bracklen, t, in_cclass, in_collsym, in_equiv; |
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|
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if (*wpat == 0) |
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*************** |
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*** 119,123 **** |
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case L'[': |
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/* scan for ending `]', skipping over embedded [:...:] */ |
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! wbrack = wpat; |
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wc = *wpat++; |
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do |
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--- 119,123 ---- |
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case L'[': |
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/* scan for ending `]', skipping over embedded [:...:] */ |
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! bracklen = 1; |
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wc = *wpat++; |
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do |
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*************** |
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*** 125,140 **** |
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if (wc == 0) |
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{ |
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! matlen += wpat - wbrack - 1; /* incremented below */ |
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! break; |
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} |
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else if (wc == L'\\') |
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{ |
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! wc = *wpat++; |
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! if (*wpat == 0) |
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! break; |
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} |
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else if (wc == L'[' && *wpat == L':') /* character class */ |
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{ |
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wpat++; |
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in_cclass = 1; |
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} |
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--- 125,148 ---- |
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if (wc == 0) |
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{ |
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! wpat--; /* back up to NUL */ |
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! matlen += bracklen; |
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! goto bad_bracket; |
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} |
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else if (wc == L'\\') |
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{ |
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! /* *wpat == backslash-escaped character */ |
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! bracklen++; |
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! /* If the backslash or backslash-escape ends the string, |
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! bail. The ++wpat skips over the backslash escape */ |
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! if (*wpat == 0 || *++wpat == 0) |
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! { |
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! matlen += bracklen; |
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! goto bad_bracket; |
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! } |
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} |
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else if (wc == L'[' && *wpat == L':') /* character class */ |
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{ |
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wpat++; |
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+ bracklen++; |
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in_cclass = 1; |
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} |
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*************** |
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*** 142,145 **** |
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--- 150,154 ---- |
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{ |
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wpat++; |
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+ bracklen++; |
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in_cclass = 0; |
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} |
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*************** |
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*** 147,152 **** |
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{ |
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wpat++; |
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if (*wpat == L']') /* right bracket can appear as collating symbol */ |
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! wpat++; |
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in_collsym = 1; |
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} |
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--- 156,165 ---- |
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{ |
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wpat++; |
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|
112 |
+ bracklen++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
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changeset
|
113 |
if (*wpat == L']') /* right bracket can appear as collating symbol */ |
6d49548fa9da
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parents:
diff
changeset
|
114 |
! { |
6d49548fa9da
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parents:
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changeset
|
115 |
! wpat++; |
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parents:
diff
changeset
|
116 |
! bracklen++; |
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parents:
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changeset
|
117 |
! } |
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parents:
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changeset
|
118 |
in_collsym = 1; |
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parents:
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changeset
|
119 |
} |
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changeset
|
120 |
*************** |
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parents:
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changeset
|
121 |
*** 154,157 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
122 |
--- 167,171 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
123 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
124 |
wpat++; |
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15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
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changeset
|
125 |
+ bracklen++; |
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15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
126 |
in_collsym = 0; |
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parents:
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changeset
|
127 |
} |
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15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
128 |
*************** |
6d49548fa9da
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parents:
diff
changeset
|
129 |
*** 159,164 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
130 |
{ |
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parents:
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changeset
|
131 |
wpat++; |
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parents:
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changeset
|
132 |
if (*wpat == L']') /* right bracket can appear as equivalence class */ |
6d49548fa9da
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parents:
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changeset
|
133 |
! wpat++; |
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changeset
|
134 |
in_equiv = 1; |
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parents:
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changeset
|
135 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
136 |
--- 173,182 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
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changeset
|
137 |
{ |
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15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
138 |
wpat++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
139 |
+ bracklen++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
140 |
if (*wpat == L']') /* right bracket can appear as equivalence class */ |
6d49548fa9da
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parents:
diff
changeset
|
141 |
! { |
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parents:
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changeset
|
142 |
! wpat++; |
6d49548fa9da
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parents:
diff
changeset
|
143 |
! bracklen++; |
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parents:
diff
changeset
|
144 |
! } |
6d49548fa9da
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parents:
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changeset
|
145 |
in_equiv = 1; |
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parents:
diff
changeset
|
146 |
} |
6d49548fa9da
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changeset
|
147 |
*************** |
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parents:
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changeset
|
148 |
*** 166,174 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
149 |
--- 184,196 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
150 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
151 |
wpat++; |
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15754923 SUNBT7111705 Upgrade bash to 4.2
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changeset
|
152 |
+ bracklen++; |
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changeset
|
153 |
in_equiv = 0; |
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parents:
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changeset
|
154 |
} |
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changeset
|
155 |
+ else |
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diff
changeset
|
156 |
+ bracklen++; |
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Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
157 |
} |
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parents:
diff
changeset
|
158 |
while ((wc = *wpat++) != L']'); |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
159 |
matlen++; /* bracket expression can only match one char */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
160 |
+ bad_bracket: |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
161 |
break; |
6d49548fa9da
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parents:
diff
changeset
|
162 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
163 |
*************** |
6d49548fa9da
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Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
164 |
*** 214,219 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
165 |
size_t max; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
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parents:
diff
changeset
|
166 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
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changeset
|
167 |
! char c, *brack; |
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15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
168 |
! int matlen, t, in_cclass, in_collsym, in_equiv; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
169 |
|
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
170 |
if (*pat == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
171 |
--- 236,241 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
172 |
size_t max; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
173 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
174 |
! char c; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
175 |
! int matlen, bracklen, t, in_cclass, in_collsym, in_equiv; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
176 |
|
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
177 |
if (*pat == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
178 |
*************** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
179 |
*** 255,259 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
180 |
case '[': |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
181 |
/* scan for ending `]', skipping over embedded [:...:] */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
182 |
! brack = pat; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
183 |
c = *pat++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
184 |
do |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
185 |
--- 277,281 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
186 |
case '[': |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
187 |
/* scan for ending `]', skipping over embedded [:...:] */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
188 |
! bracklen = 1; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
189 |
c = *pat++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
190 |
do |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
191 |
*************** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
192 |
*** 261,276 **** |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
193 |
if (c == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
194 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
195 |
! matlen += pat - brack - 1; /* incremented below */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
196 |
! break; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
197 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
198 |
else if (c == '\\') |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
199 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
200 |
! c = *pat++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
201 |
! if (*pat == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
202 |
! break; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
203 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
204 |
else if (c == '[' && *pat == ':') /* character class */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
205 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
206 |
pat++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
207 |
in_cclass = 1; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
208 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
209 |
--- 283,306 ---- |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
210 |
if (c == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
211 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
212 |
! pat--; /* back up to NUL */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
213 |
! matlen += bracklen; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
214 |
! goto bad_bracket; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
215 |
} |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
216 |
else if (c == '\\') |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
217 |
{ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
218 |
! /* *pat == backslash-escaped character */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
219 |
! bracklen++; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
220 |
! /* If the backslash or backslash-escape ends the string, |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
221 |
! bail. The ++pat skips over the backslash escape */ |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
222 |
! if (*pat == 0 || *++pat == 0) |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
223 |
! { |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
224 |
! matlen += bracklen; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
225 |
! goto bad_bracket; |
6d49548fa9da
15754923 SUNBT7111705 Upgrade bash to 4.2
Stefan Teleman <stefan.teleman@oracle.com>
parents:
diff
changeset
|
226 |
! } |
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} |
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else if (c == '[' && *pat == ':') /* character class */ |
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{ |
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pat++; |
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231 |
+ bracklen++; |
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in_cclass = 1; |
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} |
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234 |
*************** |
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235 |
*** 278,281 **** |
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236 |
--- 308,312 ---- |
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237 |
{ |
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pat++; |
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+ bracklen++; |
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in_cclass = 0; |
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241 |
} |
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242 |
*************** |
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243 |
*** 283,288 **** |
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244 |
{ |
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245 |
pat++; |
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if (*pat == ']') /* right bracket can appear as collating symbol */ |
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! pat++; |
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in_collsym = 1; |
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} |
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250 |
--- 314,323 ---- |
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251 |
{ |
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252 |
pat++; |
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253 |
+ bracklen++; |
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254 |
if (*pat == ']') /* right bracket can appear as collating symbol */ |
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255 |
! { |
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256 |
! pat++; |
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257 |
! bracklen++; |
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258 |
! } |
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in_collsym = 1; |
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260 |
} |
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261 |
*************** |
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262 |
*** 290,293 **** |
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|
263 |
--- 325,329 ---- |
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|
264 |
{ |
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265 |
pat++; |
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266 |
+ bracklen++; |
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267 |
in_collsym = 0; |
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|
268 |
} |
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269 |
*************** |
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|
270 |
*** 295,300 **** |
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|
271 |
{ |
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|
272 |
pat++; |
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273 |
if (*pat == ']') /* right bracket can appear as equivalence class */ |
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274 |
! pat++; |
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275 |
in_equiv = 1; |
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|
276 |
} |
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|
277 |
--- 331,340 ---- |
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|
278 |
{ |
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|
279 |
pat++; |
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280 |
+ bracklen++; |
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|
281 |
if (*pat == ']') /* right bracket can appear as equivalence class */ |
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|
282 |
! { |
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|
283 |
! pat++; |
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|
284 |
! bracklen++; |
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|
285 |
! } |
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|
286 |
in_equiv = 1; |
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|
287 |
} |
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|
288 |
*************** |
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|
289 |
*** 302,310 **** |
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|
290 |
--- 342,354 ---- |
6d49548fa9da
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|
291 |
{ |
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|
292 |
pat++; |
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|
293 |
+ bracklen++; |
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|
294 |
in_equiv = 0; |
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|
295 |
} |
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|
296 |
+ else |
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|
297 |
+ bracklen++; |
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|
298 |
} |
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|
299 |
while ((c = *pat++) != ']'); |
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|
300 |
matlen++; /* bracket expression can only match one char */ |
6d49548fa9da
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|
301 |
+ bad_bracket: |
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|
302 |
break; |
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|
303 |
} |
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|
304 |
*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010 |
6d49548fa9da
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changeset
|
305 |
--- patchlevel.h Thu Feb 24 21:41:34 2011 |
6d49548fa9da
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|
306 |
*************** |
6d49548fa9da
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|
307 |
*** 26,30 **** |
6d49548fa9da
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changeset
|
308 |
looks for to find the patch level (for the sccs version string). */ |
6d49548fa9da
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changeset
|
309 |
|
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|
310 |
! #define PATCHLEVEL 2 |
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|
311 |
|
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|
312 |
#endif /* _PATCHLEVEL_H_ */ |
6d49548fa9da
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|
313 |
--- 26,30 ---- |
6d49548fa9da
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changeset
|
314 |
looks for to find the patch level (for the sccs version string). */ |
6d49548fa9da
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parents:
diff
changeset
|
315 |
|
6d49548fa9da
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changeset
|
316 |
! #define PATCHLEVEL 3 |
6d49548fa9da
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changeset
|
317 |
|
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|
318 |
#endif /* _PATCHLEVEL_H_ */ |