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-rw-r--r--src/initlog.c317
1 files changed, 317 insertions, 0 deletions
diff --git a/src/initlog.c b/src/initlog.c
new file mode 100644
index 00000000..96b5af87
--- /dev/null
+++ b/src/initlog.c
@@ -0,0 +1,317 @@
+
+#include <errno.h>
+#include <fcntl.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define SYSLOG_NAMES
+#include <syslog.h>
+
+#include <sys/wait.h>
+
+#define _(String) gettext((String))
+
+#include <popt.h>
+
+#include "initlog.h"
+#include "process.h"
+
+static int logfacility=LOG_DAEMON;
+static int logpriority=LOG_NOTICE;
+static int reexec=0;
+static int quiet=0;
+
+static int logEntries = 0;
+struct logInfo *logData = NULL;
+
+char *getLine(char **data) {
+ /* Get one line from data */
+ char *x, *y;
+
+ if (!*data) return NULL;
+
+ for (x = *data; *x && (*x != '\n'); x++);
+ if (*x) {
+ x++;
+ } else {
+ if (x-*data) {
+ y=malloc(x-*data+1);
+ y[x-*data] = 0;
+ y[x-*data-1] = '\n';
+ memcpy(y,*data,x-*data);
+ } else {
+ y=NULL;
+ }
+ *data = NULL;
+ return y;
+ }
+ y = malloc(x-*data);
+ y[x-*data-1] = 0;
+ memcpy(y,*data,x-*data-1);
+ *data = x;
+ return y;
+}
+
+char **toArray(char *line, int *num) {
+ /* Converts a long string into an array of lines. */
+ char **lines;
+ char *tmpline;
+
+ *num = 0;
+ lines = NULL;
+
+ while ((tmpline=getLine(&line))) {
+ if (!*num)
+ lines = (char **) malloc(sizeof(char *));
+ else
+ lines = (char **) realloc(lines, (*num+1)*sizeof(char *));
+ lines[*num] = tmpline;
+ (*num)++;
+ }
+ return lines;
+}
+
+int startDaemon() {
+ int pid;
+ int rc;
+
+ if ( (pid = fork()) == -1 ) {
+ perror("fork");
+ return -1;
+ }
+ if ( pid ) {
+ /* parent */
+ waitpid(pid,&rc,0);
+ if (rc)
+ return -1;
+ else
+ return 0;
+ } else {
+ int fd;
+
+ fd=open("/dev/null",O_RDWR);
+ dup2(fd,0);
+ dup2(fd,1);
+ dup2(fd,2);
+ /* kid */
+ execlp("minilogd","minilogd",NULL);
+ perror("exec");
+ exit(-1);
+ }
+}
+
+int logLine(struct logInfo *logEnt) {
+ /* Logs a line... somewhere. */
+ int x;
+
+ /* Don't log empty or null lines */
+ if (!logEnt->line || !strcmp(logEnt->line,"\n")) return 0;
+
+ if ((x=access(_PATH_LOG,W_OK))) {
+ /* syslog isn't running, so start something... */
+ if ( (x=startDaemon()) ==-1) {
+ logData=realloc(logData,(logEntries+1)*sizeof(struct logInfo));
+ logData[logEntries]= (*logEnt);
+ logEntries++;
+ } else {
+ if (logEntries>0) {
+ for (x=0;x<logEntries;x++) {
+ openlog(logData[x].cmd,0,logData[x].fac);
+ printf("flushing %s\n",logData[x].line);
+ syslog(logData[x].pri,"%s",logData[x].line);
+ closelog();
+ }
+ free(logData);
+ logEntries = 0;
+ }
+ openlog(logEnt->cmd,0,logEnt->fac);
+ syslog(logEnt->pri,"%s",logEnt->line);
+ closelog();
+ }
+ } else {
+ if (logEntries>0) {
+ for (x=0;x<logEntries;x++) {
+ openlog(logData[x].cmd,0,logData[x].fac);
+ printf("flushing %s\n",logData[x].line);
+ syslog(logData[x].pri,"%s",logData[x].line);
+ closelog();
+ }
+ free(logData);
+ logEntries = 0;
+ }
+ openlog(logEnt->cmd,0,logEnt->fac);
+ syslog(logEnt->pri,"%s",logEnt->line);
+ closelog();
+ }
+ return 0;
+}
+
+int logEvent(char *cmd, int eventtype,char *string) {
+ char *eventtable [] = {
+ _("%s babbles incoherently"),
+ _("%s succeeded"),
+ _("%s failed"),
+ _("%s cancelled at user request"),
+ _("%s failed due to a failed dependency"),
+ /* insert more here */
+ NULL
+ };
+ int x=0,len;
+ struct logInfo logentry;
+
+
+ if (cmd) {
+ logentry.cmd = strdup(basename(cmd));
+ if ((logentry.cmd[0] =='K' || logentry.cmd[0] == 'S') && ( 30 <= logentry.cmd[1] <= 39 )
+ && ( 30 <= logentry.cmd[2] <= 39 ) )
+ logentry.cmd+=3;
+ } else
+ logentry.cmd = strdup(_("(none)"));
+ if (!string)
+ string = strdup(cmd);
+
+ while (eventtable[x] && x<eventtype) x++;
+ if (!(eventtable[x])) x=0;
+
+ len=strlen(eventtable[x])+strlen(string);
+ logentry.line=malloc(len);
+ snprintf(logentry.line,len,eventtable[x],string);
+
+ logentry.pri = logpriority;
+ logentry.fac = logfacility;
+
+ return logLine(&logentry);
+}
+
+int logString(char *cmd, char *string) {
+ struct logInfo logentry;
+
+ if (cmd) {
+ logentry.cmd = strdup(basename(cmd));
+ if ((logentry.cmd[0] =='K' || logentry.cmd[0] == 'S') && ( 30 <= logentry.cmd[1] <= 39 )
+ && ( 30 <= logentry.cmd[2] <= 39 ) )
+ logentry.cmd+=3;
+ } else
+ logentry.cmd = strdup(_(""));
+ logentry.line = strdup(string);
+ logentry.pri = logpriority;
+ logentry.fac = logfacility;
+
+ return logLine(&logentry);
+}
+
+void processArgs(int argc, char **argv) {
+ char *cmdname=NULL;
+ int cmdevent=0;
+ char *cmd=NULL;
+ char *logstring=NULL;
+ char *fac=NULL,*pri=NULL;
+ poptContext context;
+ int rc;
+ struct poptOption optTable[] = {
+ POPT_AUTOHELP
+ { "name", 'n', POPT_ARG_STRING, &cmdname, 0,
+ "name of service being logged", NULL
+ },
+ { "event", 'e', POPT_ARG_INT, &cmdevent, 0,
+ "event being logged (see man page)", NULL
+ },
+ { "cmd", 'c', POPT_ARG_STRING, &cmd, 0,
+ "command to run, logging output", NULL
+ },
+ { "run", 'r', POPT_ARG_STRING, &cmd, 3,
+ "command to run, accepting input on open fd", NULL
+ },
+ { "string", 's', POPT_ARG_STRING, &logstring, 0,
+ "string to log", NULL
+ },
+ { "facility", 'f', POPT_ARG_STRING, &fac, 1,
+ "facility to log at (default: 'daemon')", NULL
+ },
+ { "priority", 'p', POPT_ARG_STRING, &pri, 2,
+ "priority to log at (default: 'notice')", NULL
+ },
+ { "quiet", 'q', POPT_ARG_NONE, &quiet, 0,
+ "suppress stdout/stderr", NULL
+ },
+ { 0, 0, 0, 0, 0, 0 }
+ };
+
+ context = poptGetContext("initlog", argc, argv, optTable, 0);
+
+ while ((rc = poptGetNextOpt(context)) > 0) {
+ switch (rc) {
+ case 1:
+ logfacility=atoi(fac);
+ if ((logfacility == 0) && strcmp(fac,"0")) {
+ int x =0;
+
+ logfacility = LOG_DAEMON;
+ for (x=0;facilitynames[x].c_name;x++) {
+ if (!strcmp(fac,facilitynames[x].c_name)) {
+ logfacility = facilitynames[x].c_val;
+ break;
+ }
+ }
+ }
+ break;
+ case 2:
+ logpriority = atoi(pri);
+ if ((logpriority == 0) && strcmp(pri,"0")) {
+ int x=0;
+
+ logpriority = LOG_NOTICE;
+ for (x=0;prioritynames[x].c_name;x++) {
+ if (!strcmp(pri,prioritynames[x].c_name)) {
+ logpriority = prioritynames[x].c_val;
+ break;
+ }
+ }
+ }
+ break;
+ case 3:
+ reexec = 1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if ((rc < -1)) {
+ fprintf(stderr, "%s: %s\n",
+ poptBadOption(context, POPT_BADOPTION_NOALIAS),
+ poptStrerror(rc));
+ exit(-1);
+ }
+ if ( (cmd && logstring) || (cmd && cmdname) ) {
+ fprintf(stderr, _("--cmd and --run are incompatible with --string or --name\n"));
+ exit(-1);
+ }
+ if ( cmdname && (!logstring && !cmdevent)) {
+ fprintf(stderr, _("--name requires one of --event or --string\n"));
+ exit(-1);
+ }
+ if (cmdevent) {
+ logEvent(cmdname,cmdevent,logstring);
+ } else if (logstring) {
+ logString(cmdname,logstring);
+ } else if ( cmd ) {
+ exit(runCommand(cmd,reexec,quiet));
+ } else {
+ fprintf(stderr,"nothing to do!\n");
+ exit(-1);
+ }
+}
+
+int main(int argc, char **argv) {
+
+ setlocale(LC_ALL,"");
+ bindtextdomain("initlog","/etc/locale");
+ textdomain("initlog");
+ processArgs(argc,argv);
+ exit (0);
+}
generated by cgit v1.2.1 (git 2.21.0) at 2024-07-05 05:13:59 +0000