From 46651ce6fe013220ed397add242004d764fc0153 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 14:15:05 +0200 Subject: Adding upstream version 14.5. Signed-off-by: Daniel Baumann --- src/port/quotes.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/port/quotes.c (limited to 'src/port/quotes.c') diff --git a/src/port/quotes.c b/src/port/quotes.c new file mode 100644 index 0000000..63a219f --- /dev/null +++ b/src/port/quotes.c @@ -0,0 +1,51 @@ +/*------------------------------------------------------------------------- + * + * quotes.c + * string quoting and escaping functions + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * + * IDENTIFICATION + * src/port/quotes.c + * + *------------------------------------------------------------------------- + */ + +#include "c.h" + +/* + * Escape (by doubling) any single quotes or backslashes in given string + * + * Note: this is used to process postgresql.conf entries and to quote + * string literals in pg_basebackup for writing the recovery configuration. + * Since postgresql.conf strings are defined to treat backslashes as escapes, + * we have to double backslashes here. + * + * Since this function is only used for parsing or creating configuration + * files, we do not care about encoding considerations. + * + * Returns a malloced() string that it's the responsibility of the caller + * to free. + */ +char * +escape_single_quotes_ascii(const char *src) +{ + int len = strlen(src), + i, + j; + char *result = malloc(len * 2 + 1); + + if (!result) + return NULL; + + for (i = 0, j = 0; i < len; i++) + { + if (SQL_STR_DOUBLE(src[i], true)) + result[j++] = src[i]; + result[j++] = src[i]; + } + result[j] = '\0'; + return result; +} -- cgit v1.2.3