/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2013 Tobias Klauser. * Subject to the GPL, version 2. */ #define _BSD_SOURCE #define _DEFAULT_SOURCE #include #include #include #include #include "tprintf.h" #include "die.h" #include "locking.h" #include "built_in.h" #define term_trailing_size 5 #define term_starting_size 3 #define term_curr_size (get_tty_size() - term_trailing_size) static char buffer[1024]; static volatile size_t buffer_use = 0; static struct spinlock buffer_lock; static int get_tty_size(void) { #ifdef TIOCGSIZE struct ttysize ts = {0}; return (ioctl(0, TIOCGSIZE, &ts) == 0 ? ts.ts_cols : DEFAULT_TTY_SIZE); #elif defined(TIOCGWINSZ) struct winsize ts; return (ioctl(0, TIOCGWINSZ, &ts) == 0 ? ts.ws_col : DEFAULT_TTY_SIZE); #else return DEFAULT_TTY_SIZE; #endif } static inline void __tprintf_flush_newline(void) { int i; fputc('\n', stdout); for (i = 0; i < term_starting_size; ++i) fputc(' ', stdout); } static inline int __tprintf_flush_skip(char *buf, int i) { int val = buf[i]; if (val == ' ' || val == ',') return 1; return 0; } static void __tprintf_flush(void) { size_t i; static ssize_t line_count = 0; ssize_t term_len = term_curr_size; size_t color_open = 0; for (i = 0; i < buffer_use; ++i) { if (buffer[i] == '\n') { term_len = term_curr_size; line_count = -1; } /* Start of an color escape sequence? */ if (buffer[i] == 033) { if ((i + 1) < buffer_use && buffer[i + 1] == '[') color_open++; } if (color_open == 0 && line_count >= term_len) { __tprintf_flush_newline(); line_count = term_starting_size; while (i < buffer_use && __tprintf_flush_skip(buffer, i)) i++; } /* End of the color escape sequence? */ if (color_open > 0 && buffer[i] == 'm') color_open--; fputc(buffer[i], stdout); line_count++; } fflush(stdout); buffer_use = 0; } void tprintf_flush(void) { spinlock_lock(&buffer_lock); __tprintf_flush(); spinlock_unlock(&buffer_lock); } void tprintf_init(void) { spinlock_init(&buffer_lock); setvbuf(stdout, NULL, _IONBF, 0); setvbuf(stderr, NULL, _IONBF, 0); } void tprintf_cleanup(void) { tprintf_flush(); spinlock_destroy(&buffer_lock); } void tprintf(char *msg, ...) { ssize_t ret; ssize_t avail; va_list vl; spinlock_lock(&buffer_lock); avail = sizeof(buffer) - buffer_use; bug_on(avail < 0); va_start(vl, msg); ret = vsnprintf(buffer + buffer_use, avail, msg, vl); va_end(vl); if (ret < 0) panic("vsnprintf screwed up in tprintf!\n"); if ((size_t) ret > sizeof(buffer)) panic("No mem in tprintf left!\n"); if (ret >= avail) { __tprintf_flush(); avail = sizeof(buffer) - buffer_use; bug_on(avail < 0); va_start(vl, msg); ret = vsnprintf(buffer + buffer_use, avail, msg, vl); va_end(vl); if (ret < 0) panic("vsnprintf screwed up in tprintf!\n"); } buffer_use += ret; spinlock_unlock(&buffer_lock); } void tputchar_safe(int c) { unsigned char ch = (unsigned char)(c & 0xff); if (isprint(ch)) tprintf("%c", ch); else tprintf("\\0x%02x", ch); } void tputs_safe(const char *str, size_t len) { while (len--) { tputchar_safe(*str); str++; } } ef='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings?h=nds-private-remove&id=33e962c8871f015f5c8978384553dddcf5b81b22'>dt-bindings/pinctrl/mt6397-pinfunc.h
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