*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.119 2003/12/25 03:44:04 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.120 2004/02/02 16:58:30 neilc Exp $
*
*-------------------------------------------------------------------------
*/
#include "storage/fd.h"
-#define IDENT_USERNAME_MAX 512
/* Max size of username ident server can return */
+#define IDENT_USERNAME_MAX 512
+
+/* Standard TCP port number for Ident service. Assigned by IANA */
+#define IDENT_PORT 113
+
+/* Name of the config file */
+#define CONF_FILE "pg_hba.conf"
+
+/* Name of the usermap file */
+#define USERMAP_FILE "pg_ident.conf"
/* This is used to separate values in multi-valued column strings */
#define MULTI_VALUE_SEP "\001"
+#define MAX_TOKEN 256
+
/*
* These variables hold the pre-parsed contents of the hba and ident
* configuration files. Each is a list of sublists, one sublist for
/*
- * Grab one token out of fp. Tokens are strings of non-blank
- * characters bounded by blank characters, beginning of line, and
- * end of line. Blank means space or tab. Return the token as
- * *buf. Leave file positioned to character immediately after the
- * token or EOF, whichever comes first. If no more tokens on line,
- * return null string as *buf and position file to beginning of
- * next line or EOF, whichever comes first. Allow spaces in quoted
- * strings. Terminate on unquoted commas. Handle comments. Treat
- * unquoted keywords that might be user names or database names
- * specially, by appending a newline to them.
+ * Grab one token out of fp. Tokens are strings of non-blank
+ * characters bounded by blank characters, beginning of line, and
+ * end of line. Blank means space or tab. Return the token as
+ * *buf. Leave file positioned at the character immediately after the
+ * token or EOF, whichever comes first. If no more tokens on line,
+ * return empty string as *buf and position the file to the beginning
+ * of the next line or EOF, whichever comes first. Allow spaces in
+ * quoted strings. Terminate on unquoted commas. Handle
+ * comments. Treat unquoted keywords that might be user names or
+ * database names specially, by appending a newline to them.
*/
-void
-next_token(FILE *fp, char *buf, const int bufsz)
+static void
+next_token(FILE *fp, char *buf, int bufsz)
{
int c;
char *start_buf = buf;
bool was_quote = false;
bool saw_quote = false;
+ Assert(end_buf > start_buf);
+
/* Move over initial whitespace and commas */
while ((c = getc(fp)) != EOF && (pg_isblank(c) || c == ','))
;
- if (c != EOF && c != '\n')
+ if (c == EOF || c == '\n')
{
- /*
- * Build a token in buf of next characters up to EOF, EOL,
- * unquoted comma, or unquoted whitespace.
- */
- while (c != EOF && c != '\n' &&
- (!pg_isblank(c) || in_quote == true))
- {
- /* skip comments to EOL */
- if (c == '#' && !in_quote)
- {
- while ((c = getc(fp)) != EOF && c != '\n')
- ;
- /* If only comment, consume EOL too; return EOL */
- if (c != EOF && buf == start_buf)
- c = getc(fp);
- break;
- }
+ *buf = '\0';
+ return;
+ }
- if (buf >= end_buf)
- {
- ereport(LOG,
- (errcode(ERRCODE_CONFIG_FILE_ERROR),
- errmsg("authentication file token too long, skipping: \"%s\"",
- buf)));
- /* Discard remainder of line */
- while ((c = getc(fp)) != EOF && c != '\n')
- ;
- buf[0] = '\0';
- break;
- }
+ /*
+ * Build a token in buf of next characters up to EOF, EOL,
+ * unquoted comma, or unquoted whitespace.
+ */
+ while (c != EOF && c != '\n' &&
+ (!pg_isblank(c) || in_quote == true))
+ {
+ /* skip comments to EOL */
+ if (c == '#' && !in_quote)
+ {
+ while ((c = getc(fp)) != EOF && c != '\n')
+ ;
+ /* If only comment, consume EOL too; return EOL */
+ if (c != EOF && buf == start_buf)
+ c = getc(fp);
+ break;
+ }
- if (c != '"' || (c == '"' && was_quote))
- *buf++ = c;
+ if (buf >= end_buf)
+ {
+ ereport(LOG,
+ (errcode(ERRCODE_CONFIG_FILE_ERROR),
+ errmsg("authentication file token too long, skipping: \"%s\"",
+ buf)));
+ /* Discard remainder of line */
+ while ((c = getc(fp)) != EOF && c != '\n')
+ ;
+ buf[0] = '\0';
+ break;
+ }
- /* We pass back the comma so the caller knows there is more */
- if ((pg_isblank(c) || c == ',') && !in_quote)
- break;
+ if (c != '"' || (c == '"' && was_quote))
+ *buf++ = c;
- /* Literal double-quote is two double-quotes */
- if (in_quote && c == '"')
- was_quote = !was_quote;
- else
- was_quote = false;
+ /* We pass back the comma so the caller knows there is more */
+ if ((pg_isblank(c) || c == ',') && !in_quote)
+ break;
- if (c == '"')
- {
- in_quote = !in_quote;
- saw_quote = true;
- }
+ /* Literal double-quote is two double-quotes */
+ if (in_quote && c == '"')
+ was_quote = !was_quote;
+ else
+ was_quote = false;
- c = getc(fp);
+ if (c == '"')
+ {
+ in_quote = !in_quote;
+ saw_quote = true;
}
- /*
- * Put back the char right after the token (critical in case it is
- * EOL, since we need to detect end-of-line at next call).
- */
- if (c != EOF)
- ungetc(c, fp);
+ c = getc(fp);
}
+ /*
+ * Put back the char right after the token (critical in case it is
+ * EOL, since we need to detect end-of-line at next call).
+ */
+ if (c != EOF)
+ ungetc(c, fp);
+
+ *buf = '\0';
- if ( !saw_quote &&
- (
- strncmp(start_buf,"all",3) == 0 ||
- strncmp(start_buf,"sameuser",8) == 0 ||
- strncmp(start_buf,"samegroup",9) == 0
- )
- )
+ if (!saw_quote &&
+ (strcmp(start_buf, "all") == 0 ||
+ strcmp(start_buf, "sameuser") == 0 ||
+ strcmp(start_buf, "samegroup") == 0))
{
/* append newline to a magical keyword */
*buf++ = '\n';
+ *buf = '\0';
}
-
- *buf = '\0';
-
}
/*
projects / postgresql / commitdiff