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| 33 |
/* looks for varname in environment block and returns a far ptr to it if
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/* looks for varname in environment block and returns a far ptr to it if
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| 34 |
* found, NULL otherwise. varname MUST be in upper-case and MUST be terminated
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* found, NULL otherwise. varname MUST be in upper-case and MUST be terminated
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* by either a = sign or a NULL terminator */
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* by either a = sign or a NULL terminator */
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char far *env_lookup(unsigned short env_seg, const char *varname);
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char far *env_lookup(unsigned short env_seg, const char *varname);
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/* almost identical to env_lookup(), but instead of returning a pointer
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* to the 'NAME=value' string, it returns a pointer to value (or NULL if
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* var not found) */
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char far *env_lookup_val(unsigned short env_seg, const char *varname);
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/* returns the size, in bytes, of the allocated environment block */
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/* returns the size, in bytes, of the allocated environment block */
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unsigned short env_allocsz(unsigned short env_seg);
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unsigned short env_allocsz(unsigned short env_seg);
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| 41 |
/* remove a variable from environment, if present. returns 0 on success, non-zero if variable not found */
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/* remove a variable from environment, if present. returns 0 on success, non-zero if variable not found */
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int env_dropvar(unsigned short env_seg, const char *varname);
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int env_dropvar(unsigned short env_seg, const char *varname);
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