Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/src/global/sys_exits.c b/src/global/sys_exits.c
new file mode 100644
index 0000000..1e628d7
--- /dev/null
+++ b/src/global/sys_exits.c
@@ -0,0 +1,143 @@
+/*++
+/* NAME
+/*	sys_exits 3
+/* SUMMARY
+/*	sendmail-compatible exit status handling
+/* SYNOPSIS
+/*	#include <sys_exits.h>
+/*
+/*	typedef struct {
+/* .in +4
+/*	    int   status;	/* exit status */
+/*	    const char *dsn;	/* RFC 3463 */
+/*	    const char *text;	/* free text */
+/* .in -4
+/*	} SYS_EXITS_DETAIL;
+/*
+/*	int	SYS_EXITS_CODE(code)
+/*	int	code;
+/*
+/*	const char *sys_exits_strerror(code)
+/*	int	code;
+/*
+/*	const SYS_EXITS_DETAIL *sys_exits_detail(code)
+/*	int	code;
+/*
+/*	int	sys_exits_softerror(code)
+/*	int	code;
+/* DESCRIPTION
+/*	This module interprets sendmail-compatible process exit status
+/*	codes.
+/*
+/*	SYS_EXITS_CODE() returns non-zero when the specified code
+/*	is a sendmail-compatible process exit status code.
+/*
+/*	sys_exits_strerror() returns a descriptive text for the
+/*	specified sendmail-compatible status code, or a generic
+/*	text for an unknown status code.
+/*
+/*	sys_exits_detail() returns a table entry with assorted
+/*	information about the specified sendmail-compatible status
+/*	code, or a generic entry for an unknown status code.
+/*	The generic entry may be overwritten with each sys_exits_detail()
+/*	call.
+/*
+/*	sys_exits_softerror() returns non-zero when the specified
+/*	sendmail-compatible status code corresponds to a recoverable error.
+/*	An unknown status code is always unrecoverable.
+/* DIAGNOSTICS
+/*	Fatal: out of memory.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <vstring.h>
+
+/* Global library. */
+
+#include <sys_exits.h>
+
+/* Application-specific. */
+
+static const SYS_EXITS_DETAIL sys_exits_table[] = {
+    EX_USAGE, "5.3.0", "command line usage error",
+    EX_DATAERR, "5.6.0", "data format error",
+    EX_NOINPUT, "5.3.0", "cannot open input",
+    EX_NOUSER, "5.1.1", "user unknown",
+    EX_NOHOST, "5.1.2", "host name unknown",
+    EX_UNAVAILABLE, "5.3.0", "service unavailable",
+    EX_SOFTWARE, "5.3.0", "internal software error",
+    EX_OSERR, "4.3.0", "system resource problem",
+    EX_OSFILE, "5.3.0", "critical OS file missing",
+    EX_CANTCREAT, "5.2.0", "can't create user output file",
+    EX_IOERR, "5.3.0", "input/output error",
+    EX_TEMPFAIL, "4.3.0", "temporary failure",
+    EX_PROTOCOL, "5.5.0", "remote error in protocol",
+    EX_NOPERM, "5.7.0", "permission denied",
+    EX_CONFIG, "5.3.5", "local configuration error",
+};
+
+static VSTRING *sys_exits_def_text = 0;
+
+static SYS_EXITS_DETAIL sys_exits_default[] = {
+    0, "5.3.0", 0,
+};
+
+/* sys_exits_fake - fake an entry for an unknown code */
+
+static SYS_EXITS_DETAIL *sys_exits_fake(int code)
+{
+    if (sys_exits_def_text == 0)
+	sys_exits_def_text = vstring_alloc(30);
+
+    vstring_sprintf(sys_exits_def_text, "unknown mail system error %d", code);
+    sys_exits_default->text = vstring_str(sys_exits_def_text);
+    return (sys_exits_default);
+}
+
+/* sys_exits_strerror - map exit status to error string */
+
+const char *sys_exits_strerror(int code)
+{
+    if (!SYS_EXITS_CODE(code)) {
+	return (sys_exits_fake(code)->text);
+    } else {
+	return (sys_exits_table[code - EX__BASE].text);
+    }
+}
+
+/* sys_exits_detail - map exit status info table entry */
+
+const SYS_EXITS_DETAIL *sys_exits_detail(int code)
+{
+    if (!SYS_EXITS_CODE(code)) {
+	return (sys_exits_fake(code));
+    } else {
+	return (sys_exits_table + code - EX__BASE);
+    }
+}
+
+/* sys_exits_softerror  - determine if error is transient */
+
+int     sys_exits_softerror(int code)
+{
+    if (!SYS_EXITS_CODE(code)) {
+	return (sys_exits_default->dsn[0] == '4');
+    } else {
+	return (sys_exits_table[code - EX__BASE].dsn[0] == '4');
+    }
+}