4 * Various reporting routines.
5 * Originally copied from GIT source.
7 * Copyright (C) Linus Torvalds, 2005
12 static void report(const char *prefix, const char *err, va_list params)
15 vsnprintf(msg, sizeof(msg), err, params);
16 fprintf(stderr, " %s%s\n", prefix, msg);
19 static NORETURN void usage_builtin(const char *err)
21 fprintf(stderr, "\n Usage: %s\n", err);
25 static NORETURN void die_builtin(const char *err, va_list params)
27 report(" Fatal: ", err, params);
31 static void error_builtin(const char *err, va_list params)
33 report(" Error: ", err, params);
36 static void warn_builtin(const char *warn, va_list params)
38 report(" Warning: ", warn, params);
41 /* If we are in a dlopen()ed .so write to a global variable would segfault
42 * (ugh), so keep things static. */
43 static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
44 static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
45 static void (*error_routine)(const char *err, va_list params) = error_builtin;
46 static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
48 void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
50 die_routine = routine;
53 void usage(const char *err)
58 void die(const char *err, ...)
62 va_start(params, err);
63 die_routine(err, params);
67 int error(const char *err, ...)
71 va_start(params, err);
72 error_routine(err, params);
77 void warning(const char *warn, ...)
81 va_start(params, warn);
82 warn_routine(warn, params);
86 uid_t parse_target_uid(const char *str, const char *tid, const char *pid)
88 struct passwd pwd, *result;
94 /* UID and PID are mutually exclusive */
96 ui__warning("PID/TID switch overriding UID\n");
101 getpwnam_r(str, &pwd, buf, sizeof(buf), &result);
103 if (result == NULL) {
105 int uid = strtol(str, &endptr, 10);
107 if (*endptr != '\0') {
108 ui__error("Invalid user %s\n", str);
112 getpwuid_r(uid, &pwd, buf, sizeof(buf), &result);
114 if (result == NULL) {
115 ui__error("Problems obtaining information for user %s\n",
121 return result->pw_uid;