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common: New function substitute_envvars.

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* common/stringhelp.c (substitute_envvars): New.  Based on code in
gpg-connect-agent.
* common/t-stringhelp.c: Include sysutils.h.
(test_substitute_envvars): New.
--

GnuPG-bug-id: 5599
This commit is contained in:
Werner Koch 2021-09-17 17:33:21 +02:00
parent a756a61f19
commit f0162afb6b
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GPG key ID: E3FDFF218E45B72B
3 changed files with 206 additions and 0 deletions
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common/stringhelp.h
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@ -166,6 +166,9 @@ int compare_version_strings (const char *my_version, const char *req_version);
/* Format a string so that it fits within about TARGET_COLS columns. */
char *format_text (const char *text, int target_cols, int max_cols);
/* Substitute environmen variabales in STRING. */
char *substitute_envvars (const char *string);
/*-- mapstrings.c --*/
const char *map_static_macro_string (const char *string);