| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> |
| 2 | * |
| 3 | * GNU Library General Public License (LGPL) version 2 or later. |
| 4 | * |
| 5 | * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | #include <stdarg.h> |
| 12 | #include <errno.h> |
| 13 | #include <err.h> |
| 14 | #ifdef __UCLIBC_HAS_THREADS__ |
| 15 | #include <pthread.h> |
| 16 | #endif |
| 17 | |
| 18 | #ifdef __UCLIBC_MJN3_ONLY__ |
| 19 | #warning REMINDER: Deal with wide oriented stderr case. |
| 20 | #endif |
| 21 | |
| 22 | #if defined __USE_BSD |
| 23 | |
| 24 | |
| 25 | |
| 26 | static void vwarn_work(const char *format, va_list args, int showerr) |
| 27 | { |
| 28 | /* 0123 45678 9 a b*/ |
| 29 | static const char fmt[] = "%s: \0: %s\n\0\n"; |
| 30 | const char *f; |
| 31 | char buf[64]; |
| 32 | __STDIO_AUTO_THREADLOCK_VAR; |
| 33 | |
| 34 | /* Do this first, in case something below changes errno. */ |
| 35 | f = fmt + 11; /* At 11. */ |
| 36 | if (showerr) { |
| 37 | f -= 4; /* At 7. */ |
| 38 | __xpg_strerror_r(errno, buf, sizeof(buf)); |
| 39 | } |
| 40 | |
| 41 | __STDIO_AUTO_THREADLOCK(stderr); |
| 42 | |
| 43 | fprintf(stderr, fmt, __uclibc_progname); |
| 44 | if (format) { |
| 45 | vfprintf(stderr, format, args); |
| 46 | f -= 2; /* At 5 (showerr) or 9. */ |
| 47 | } |
| 48 | fprintf(stderr, f, buf); |
| 49 | |
| 50 | __STDIO_AUTO_THREADUNLOCK(stderr); |
| 51 | } |
| 52 | |
| 53 | void vwarn(const char *format, va_list args) |
| 54 | { |
| 55 | vwarn_work(format, args, 1); |
| 56 | } |
| 57 | libc_hidden_def(vwarn) |
| 58 | |
| 59 | void warn(const char *format, ...) |
| 60 | { |
| 61 | va_list args; |
| 62 | |
| 63 | va_start(args, format); |
| 64 | vwarn(format, args); |
| 65 | va_end(args); |
| 66 | } |
| 67 | |
| 68 | void vwarnx(const char *format, va_list args) |
| 69 | { |
| 70 | vwarn_work(format, args, 0); |
| 71 | } |
| 72 | libc_hidden_def(vwarnx) |
| 73 | |
| 74 | void warnx(const char *format, ...) |
| 75 | { |
| 76 | va_list args; |
| 77 | |
| 78 | va_start(args, format); |
| 79 | vwarnx(format, args); |
| 80 | va_end(args); |
| 81 | } |
| 82 | |
| 83 | void verr(int status, const char *format, va_list args) |
| 84 | { |
| 85 | vwarn(format, args); |
| 86 | exit(status); |
| 87 | } |
| 88 | libc_hidden_def(verr) |
| 89 | |
| 90 | void attribute_noreturn err(int status, const char *format, ...) |
| 91 | { |
| 92 | va_list args; |
| 93 | |
| 94 | va_start(args, format); |
| 95 | verr(status, format, args); |
| 96 | /* This should get optimized away. We'll leave it now for safety. */ |
| 97 | /* The loop is added only to keep gcc happy. */ |
| 98 | while(1) |
| 99 | va_end(args); |
| 100 | } |
| 101 | |
| 102 | void verrx(int status, const char *format, va_list args) |
| 103 | { |
| 104 | vwarnx(format, args); |
| 105 | exit(status); |
| 106 | } |
| 107 | libc_hidden_def(verrx) |
| 108 | |
| 109 | void attribute_noreturn errx(int status, const char *format, ...) |
| 110 | { |
| 111 | va_list args; |
| 112 | |
| 113 | va_start(args, format); |
| 114 | verrx(status, format, args); |
| 115 | /* This should get optimized away. We'll leave it now for safety. */ |
| 116 | /* The loop is added only to keep gcc happy. */ |
| 117 | while(1) |
| 118 | va_end(args); |
| 119 | } |
| 120 | #endif |