1 /* $FreeBSD$ */ 2 3 /* 4 * report() - calls syslog 5 */ 6 7 #include <stdarg.h> 8 9 #include <stdio.h> 10 #include <syslog.h> 11 #include <string.h> 12 #include <errno.h> 13 14 #include "report.h" 15 16 #ifndef LOG_NDELAY 17 #define LOG_NDELAY 0 18 #endif 19 #ifndef LOG_DAEMON 20 #define LOG_DAEMON 0 21 #endif 22 #ifndef LOG_BOOTP 23 #define LOG_BOOTP LOG_DAEMON 24 #endif 25 26 extern int debug; 27 extern char *progname; 28 29 /* 30 * This is initialized so you get stderr until you call 31 * report_init() 32 */ 33 static int stderr_only = 1; 34 35 void 36 report_init(int nolog) 37 { 38 stderr_only = nolog; 39 #ifdef SYSLOG 40 if (!stderr_only) { 41 openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP); 42 } 43 #endif 44 } 45 46 /* 47 * This routine reports errors and such via stderr and syslog() if 48 * appopriate. It just helps avoid a lot of "#ifdef SYSLOG" constructs 49 * from being scattered throughout the code. 50 * 51 * The syntax is identical to syslog(3), but %m is not considered special 52 * for output to stderr (i.e. you'll see "%m" in the output. . .). Also, 53 * control strings should normally end with \n since newlines aren't 54 * automatically generated for stderr output (whereas syslog strips out all 55 * newlines and adds its own at the end). 56 */ 57 58 static char *levelnames[] = { 59 #ifdef LOG_SALERT 60 "level(0): ", 61 "alert(1): ", 62 "alert(2): ", 63 "emerg(3): ", 64 "error(4): ", 65 "crit(5): ", 66 "warn(6): ", 67 "note(7): ", 68 "info(8): ", 69 "debug(9): ", 70 "level(?): " 71 #else 72 "emerg(0): ", 73 "alert(1): ", 74 "crit(2): ", 75 "error(3): ", 76 "warn(4): ", 77 "note(5): ", 78 "info(6): ", 79 "debug(7): ", 80 "level(?): " 81 #endif 82 }; 83 static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]); 84 85 86 /* 87 * Print a log message using syslog(3) and/or stderr. 88 * The message passed in should not include a newline. 89 */ 90 void 91 report(int priority, const char *fmt,...) 92 { 93 va_list ap; 94 static char buf[128]; 95 96 if ((priority < 0) || (priority >= numlevels)) { 97 priority = numlevels - 1; 98 } 99 va_start(ap, fmt); 100 vsnprintf(buf, sizeof(buf), fmt, ap); 101 va_end(ap); 102 103 /* 104 * Print the message 105 */ 106 if (stderr_only || (debug > 2)) { 107 fprintf(stderr, "%s: %s %s\n", 108 progname, levelnames[priority], buf); 109 } 110 #ifdef SYSLOG 111 if (!stderr_only) 112 syslog((priority | LOG_BOOTP), "%s", buf); 113 #endif 114 } 115 116 117 118 /* 119 * Return pointer to static string which gives full filesystem error message. 120 */ 121 const char * 122 get_errmsg(void) 123 { 124 return strerror(errno); 125 } 126 127 /* 128 * Local Variables: 129 * tab-width: 4 130 * c-indent-level: 4 131 * c-argdecl-indent: 4 132 * c-continued-statement-offset: 4 133 * c-continued-brace-offset: -4 134 * c-label-offset: -4 135 * c-brace-offset: 0 136 * End: 137 */ 138