1. rcrnstn/sockchat
  2. report.h
Browse code

WIP: Add implementation

Robert Cranston authored on 06/02/2021 04:14:21
Showing 1 changed files
report.h
History View file @ 00a2dd3
... ... 
@@ -11,38 +11,40 @@
11 11 
 #define REPORT_ERROR 1
12 12 
 #define REPORT_FATAL 2
13 13
14 
-#define report_info( ...) report(REPORT_INFO,  __VA_ARGS__)
15 
-#define report_error(...) report(REPORT_ERROR, __VA_ARGS__)
16 
-#define report_fatal(...) report(REPORT_FATAL, __VA_ARGS__)
17 
-
18 14 
 #ifndef REPORT_STREAM_INFO
19 15 
 #define REPORT_STREAM_INFO  stderr
20 16 
 #endif
21 17 
 #ifndef REPORT_STREAM_ERROR
22 18 
 #define REPORT_STREAM_ERROR stderr
23 19 
 #endif
20 
+#ifndef REPORT_STREAM_FATAL
21 
+#define REPORT_STREAM_FATAL stderr
22 
+#endif
24 23
25 
-#ifndef REPORT_FORMAT_PREFIX_INFO
26 
-#define REPORT_FORMAT_PREFIX_INFO  "Info: "
24 
+#ifndef REPORT_PREFIX_INFO
25 
+#define REPORT_PREFIX_INFO  "Info: "
27 26 
 #endif
28 
-#ifndef REPORT_FORMAT_PREFIX_ERROR
29 
-#define REPORT_FORMAT_PREFIX_ERROR "Error: "
27 
+#ifndef REPORT_PREFIX_ERROR
28 
+#define REPORT_PREFIX_ERROR "Error: "
30 29 
 #endif
31 
-#ifndef REPORT_FORMAT_PREFIX_FATAL
32 
-#define REPORT_FORMAT_PREFIX_FATAL "Fatal: "
30 
+#ifndef REPORT_PREFIX_FATAL
31 
+#define REPORT_PREFIX_FATAL "Fatal: "
33 32 
 #endif
34 33
34 
+#define report_info( ...) report(REPORT_STREAM_INFO,  REPORT_PREFIX_INFO,  0, __VA_ARGS__)
35 
+#define report_error(...) report(REPORT_STREAM_ERROR, REPORT_PREFIX_ERROR, 0, __VA_ARGS__)
36 
+#define report_fatal(...) report(REPORT_STREAM_FATAL, REPORT_PREFIX_FATAL, 1, __VA_ARGS__)
37 
+
35 38
36 
-static int report(int report, int report_errno, char const * format, ...) {
37 
-    FILE * stream = REPORT_STREAM_INFO;
38 
-    if (report >= REPORT_ERROR)
39 
-        stream = REPORT_STREAM_ERROR;
40 
-    fprintf(stream, "%s",
41 
-        report == REPORT_INFO  ? REPORT_FORMAT_PREFIX_INFO  :
42 
-        report == REPORT_ERROR ? REPORT_FORMAT_PREFIX_ERROR :
43 
-        report == REPORT_FATAL ? REPORT_FORMAT_PREFIX_FATAL :
44 
-        ""
45 
-    );
39 
+static int report(
40 
+    FILE * stream,
41 
+    char const * prefix,
42 
+    int fatal,
43 
+    int report_errno,
44 
+    char const * format,
45 
+    ...
46 
+) {
47 
+    fprintf(stream, "%s", prefix);
46 48 
     {
47 49 
         va_list ap;
48 50 
         va_start(ap, format);
... ... 
@@ -52,7 +54,7 @@ static int report(int report, int report_errno, char const * format, ...) {
52 54 
     if (report_errno)
53 55 
         fprintf(stream, ": %s", strerror(report_errno));
54 56 
     fprintf(stream, "\n");
55 
-    if (report >= REPORT_FATAL)
57 
+    if (fatal)
56 58 
         exit(EXIT_FAILURE);
57 
-    return report;
59 
+    return EXIT_FAILURE;
58 60 
 }
Browse code

WIP: Add implementation

Robert Cranston authored on 28/11/2020 18:28:43
Showing 1 changed files
report.h
History View file @ c8078bd
1 1 
new file mode 100644
... ... 
@@ -0,0 +1,58 @@
1 
+// TODO: Document that `perror(3)` is standard but does not take a printf-style
2 
+// format argument. The ones that do are nonstandard, `err(3)` (BSD), `error`
3 
+// (GNU).
4 
+#include <stdlib.h>
5 
+#include <stdio.h>
6 
+#include <stdarg.h>
7 
+#include <errno.h>
8 
+
9 
+
10 
+#define REPORT_INFO  0
11 
+#define REPORT_ERROR 1
12 
+#define REPORT_FATAL 2
13 
+
14 
+#define report_info( ...) report(REPORT_INFO,  __VA_ARGS__)
15 
+#define report_error(...) report(REPORT_ERROR, __VA_ARGS__)
16 
+#define report_fatal(...) report(REPORT_FATAL, __VA_ARGS__)
17 
+
18 
+#ifndef REPORT_STREAM_INFO
19 
+#define REPORT_STREAM_INFO  stderr
20 
+#endif
21 
+#ifndef REPORT_STREAM_ERROR
22 
+#define REPORT_STREAM_ERROR stderr
23 
+#endif
24 
+
25 
+#ifndef REPORT_FORMAT_PREFIX_INFO
26 
+#define REPORT_FORMAT_PREFIX_INFO  "Info: "
27 
+#endif
28 
+#ifndef REPORT_FORMAT_PREFIX_ERROR
29 
+#define REPORT_FORMAT_PREFIX_ERROR "Error: "
30 
+#endif
31 
+#ifndef REPORT_FORMAT_PREFIX_FATAL
32 
+#define REPORT_FORMAT_PREFIX_FATAL "Fatal: "
33 
+#endif
34 
+
35 
+
36 
+static int report(int report, int report_errno, char const * format, ...) {
37 
+    FILE * stream = REPORT_STREAM_INFO;
38 
+    if (report >= REPORT_ERROR)
39 
+        stream = REPORT_STREAM_ERROR;
40 
+    fprintf(stream, "%s",
41 
+        report == REPORT_INFO  ? REPORT_FORMAT_PREFIX_INFO  :
42 
+        report == REPORT_ERROR ? REPORT_FORMAT_PREFIX_ERROR :
43 
+        report == REPORT_FATAL ? REPORT_FORMAT_PREFIX_FATAL :
44 
+        ""
45 
+    );
46 
+    {
47 
+        va_list ap;
48 
+        va_start(ap, format);
49 
+        vfprintf(stream, format, ap);
50 
+        va_end(ap);
51 
+    }
52 
+    if (report_errno)
53 
+        fprintf(stream, ": %s", strerror(report_errno));
54 
+    fprintf(stream, "\n");
55 
+    if (report >= REPORT_FATAL)
56 
+        exit(EXIT_FAILURE);
57 
+    return report;
58 
+}