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* Sean C. Farley made me aware that some of the possible solutions to clear

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the environment would crash on Haiku. Added a small test application that
  just checks every one of those.
* Fixed env locking (in userland, you better check against B_INTERRUPTED).
* Made our code safe against an environ of NULL.
* There is now an additional sManagedEnviron that points to the environment
  our code actually managed; whenever an application overrides environ, we'll
  get aware of it with the next *env() function invocation, and will handle
  it adequately.
* Added non-POSIX clearenv() function.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26719 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2008-08-01 15:02:03 +00:00
parent 2accd07be4
commit cc6c784ae7
4 changed files with 172 additions and 50 deletions
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headers/posix/stdlib.h
+15 -14
View File
@@ -22,21 +22,21 @@
/* random data structures (for thread-safe random numbers) */
struct random_data {
int *fptr;
int *rptr;
int *state;
int rand_type;
int rand_deg;
int rand_sep;
int *end_ptr;
int *fptr;
int *rptr;
int *state;
int rand_type;
int rand_deg;
int rand_sep;
int *end_ptr;
};
struct drand48_data {
unsigned short int x[3];
unsigned short int a[3];
unsigned short int c;
unsigned short int old_x[3];
int init;
unsigned short int x[3];
unsigned short int a[3];
unsigned short int c;
unsigned short int old_x[3];
int init;
};
@@ -73,6 +73,7 @@ extern char *gcvt(double value, int digits, char *buffer);
/* environment variables */
extern char **environ;
extern int clearenv(void);
extern char *getenv(const char *name);
extern int putenv(const char *string);
extern int setenv(char const *name, char const *value, int rewrite);
@@ -102,7 +103,7 @@ extern int random_r(struct random_data *data, int *result);
extern int srandom_r(unsigned int seed, struct random_data *data);
extern char *initstate(unsigned int seed, char *state, size_t size);
extern char *setstate(char *state);
extern int initstate_r(unsigned int seed, void *stateBuffer,
extern int initstate_r(unsigned int seed, void *stateBuffer,
size_t stateLength, struct random_data *data);
extern int setstate_r(void *stateBuffer, struct random_data *data);
@@ -164,7 +165,7 @@ extern size_t mbstowcs(wchar_t *pwcs, const char *string, size_t maxSize);
extern size_t wcstombs(char *string, const wchar_t *pwcs, size_t maxSize);
/* crypt */
extern void setkey(const char *key);
extern void setkey(const char *key);
/* pty functions */