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Fix incorrect error message reported for non-existent users

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Previously, lookups of non-existent user names could return "Success";
it will now return "User does not exist" by resetting errno.  This also
centralizes the user name lookup code in libpgport.

Report and analysis by Nicolas Marchildon;  patch by me
This commit is contained in:
Bruce Momjian
2013-12-18 12:16:16 -05:00
parent 11ac4c73cb
commit 613c6d26bd
19 changed files with 129 additions and 157 deletions
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4
src/include/port.h
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@@ -473,6 +473,10 @@ extern pqsigfunc pqsignal(int signo, pqsigfunc func);
/* port/quotes.c */
extern char *escape_single_quotes_ascii(const char *src);
/* port/username.c */
extern const char *get_user_name(char **errstr);
extern const char *get_user_name_or_exit(const char *progname);
/* port/wait_error.c */
extern char *wait_result_to_str(int exit_status);