1 /* $FreeBSD: src/libexec/bootpd/report.c,v 1.2.6.2 2001/03/05 10:58:59 kris Exp $ */ 2 3 /* 4 * report() - calls syslog 5 */ 6 7 #include <stdarg.h> 8 #include <stdio.h> 9 #include <syslog.h> 10 #include <string.h> 11 #include <errno.h> 12 13 #include "report.h" 14 15 #ifndef LOG_NDELAY 16 #define LOG_NDELAY 0 17 #endif 18 #ifndef LOG_DAEMON 19 #define LOG_DAEMON 0 20 #endif 21 #ifndef LOG_BOOTP 22 #define LOG_BOOTP LOG_DAEMON 23 #endif 24 25 extern int debug; 26 extern char *progname; 27 28 /* 29 * This is initialized so you get stderr until you call 30 * report_init() 31 */ 32 static int stderr_only = 1; 33 34 void 35 report_init(int nolog) 36 { 37 stderr_only = nolog; 38 #ifdef SYSLOG 39 if (!stderr_only) { 40 openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP); 41 } 42 #endif 43 } 44 45 /* 46 * This routine reports errors and such via stderr and syslog() if 47 * appopriate. It just helps avoid a lot of "#ifdef SYSLOG" constructs 48 * from being scattered throughout the code. 49 * 50 * The syntax is identical to syslog(3), but %m is not considered special 51 * for output to stderr (i.e. you'll see "%m" in the output. . .). Also, 52 * control strings should normally end with \n since newlines aren't 53 * automatically generated for stderr output (whereas syslog strips out all 54 * newlines and adds its own at the end). 55 */ 56 57 static char *levelnames[] = { 58 #ifdef LOG_SALERT 59 "level(0): ", 60 "alert(1): ", 61 "alert(2): ", 62 "emerg(3): ", 63 "error(4): ", 64 "crit(5): ", 65 "warn(6): ", 66 "note(7): ", 67 "info(8): ", 68 "debug(9): ", 69 "level(?): " 70 #else 71 "emerg(0): ", 72 "alert(1): ", 73 "crit(2): ", 74 "error(3): ", 75 "warn(4): ", 76 "note(5): ", 77 "info(6): ", 78 "debug(7): ", 79 "level(?): " 80 #endif 81 }; 82 static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]); 83 84 85 /* 86 * Print a log message using syslog(3) and/or stderr. 87 * The message passed in should not include a newline. 88 */ 89 void 90 report(int priority, const char *fmt,...) 91 { 92 va_list ap; 93 static char buf[128]; 94 95 if ((priority < 0) || (priority >= numlevels)) { 96 priority = numlevels - 1; 97 } 98 va_start(ap, fmt); 99 vsnprintf(buf, sizeof(buf), fmt, ap); 100 va_end(ap); 101 102 /* 103 * Print the message 104 */ 105 if (stderr_only || (debug > 2)) { 106 fprintf(stderr, "%s: %s %s\n", 107 progname, levelnames[priority], buf); 108 } 109 #ifdef SYSLOG 110 if (!stderr_only) 111 syslog((priority | LOG_BOOTP), "%s", buf); 112 #endif 113 } 114 115 116 117 /* 118 * Return pointer to static string which gives full filesystem error message. 119 */ 120 const char * 121 get_errmsg(void) 122 { 123 return strerror(errno); 124 } 125