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shell/read: check that variable names are sane

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function                                             old     new   delta
shell_builtin_read                                  1000    1055     +55
parse_command                                       1460    1463      +3
builtin_umask                                        121     123      +2
is_well_formed_var_name                               73      66      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-01-13 18:22:35 +01:00
parent 03d81ef43a
commit 25d9b91d94
5 changed files with 26 additions and 24 deletions
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8
shell/shell_common.h
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@@ -21,14 +21,10 @@
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
#define IFS_BROKEN 1
#if IFS_BROKEN
extern const char defifsvar[]; /* "IFS= \t\n" */
#define defifs (defifsvar + 4)
#else
extern const char defifs[]; /* " \t\n" */
#endif
int FAST_FUNC is_well_formed_var_name(const char *s, char terminator);
POP_SAVED_FUNCTION_VISIBILITY