diff options
Diffstat (limited to 'logger.c')
| -rw-r--r-- | logger.c | 191 |
1 files changed, 95 insertions, 96 deletions
@@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Mini logger implementation for busybox * @@ -39,21 +40,22 @@ */ #include <sys/syslog.h> typedef struct _code { - char *c_name; - int c_val; + char *c_name; + int c_val; } CODE; extern CODE prioritynames[]; extern CODE facilitynames[]; #endif static const char logger_usage[] = - "logger [OPTION]... [MESSAGE]\n\n" - "Write MESSAGE to the system log. If MESSAGE is '-', log stdin.\n\n" - "Options:\n" - "\t-s\tLog to stderr as well as the system log.\n" - "\t-t\tLog using the specified tag (defaults to user name).\n" - "\t-p\tEnter the message with the specified priority.\n" - "\t\tThis may be numerical or a ``facility.level'' pair.\n"; + "logger [OPTION]... [MESSAGE]\n\n" + "Write MESSAGE to the system log. If MESSAGE is '-', log stdin.\n\n" + "Options:\n" + "\t-s\tLog to stderr as well as the system log.\n" + "\t-t\tLog using the specified tag (defaults to user name).\n" + + "\t-p\tEnter the message with the specified priority.\n" + "\t\tThis may be numerical or a ``facility.level'' pair.\n"; /* Decode a symbolic name to a numeric value @@ -61,20 +63,19 @@ static const char logger_usage[] = * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. */ -static int -decode(char* name, CODE* codetab) +static int decode(char *name, CODE * codetab) { - CODE *c; + CODE *c; - if (isdigit(*name)) - return (atoi(name)); - for (c = codetab; c->c_name; c++) { - if (!strcasecmp(name, c->c_name)) { - return (c->c_val); + if (isdigit(*name)) + return (atoi(name)); + for (c = codetab; c->c_name; c++) { + if (!strcasecmp(name, c->c_name)) { + return (c->c_val); + } } - } - return (-1); + return (-1); } /* Decode a symbolic name to a numeric value @@ -82,96 +83,94 @@ decode(char* name, CODE* codetab) * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. */ -static int -pencode(char* s) +static int pencode(char *s) { - char *save; - int lev, fac=LOG_USER; - - for (save = s; *s && *s != '.'; ++s); - if (*s) { - *s = '\0'; - fac = decode(save, facilitynames); - if (fac < 0) { - fprintf(stderr, "unknown facility name: %s\n", save); - exit( FALSE); + char *save; + int lev, fac = LOG_USER; + + for (save = s; *s && *s != '.'; ++s); + if (*s) { + *s = '\0'; + fac = decode(save, facilitynames); + if (fac < 0) { + fprintf(stderr, "unknown facility name: %s\n", save); + exit(FALSE); + } + *s++ = '.'; + } else { + s = save; + } + lev = decode(s, prioritynames); + if (lev < 0) { + fprintf(stderr, "unknown priority name: %s\n", save); + exit(FALSE); } - *s++ = '.'; - } - else { - s = save; - } - lev = decode(s, prioritynames); - if (lev < 0) { - fprintf(stderr, "unknown priority name: %s\n", save); - exit( FALSE); - } - return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); + return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); } extern int logger_main(int argc, char **argv) { - int pri = LOG_USER|LOG_NOTICE; - int option = 0; - int fromStdinFlag=FALSE; - int stopLookingAtMeLikeThat=FALSE; - char *message, buf[1024], name[128]; - - /* Fill out the name string early (may be overwritten later */ - my_getpwuid(name, geteuid()); - - /* Parse any options */ - while (--argc > 0 && **(++argv) == '-') { - if (*((*argv)+1) == '\0') { - fromStdinFlag=TRUE; - } - stopLookingAtMeLikeThat=FALSE; - while (*(++(*argv)) && stopLookingAtMeLikeThat==FALSE) { - switch (**argv) { - case 's': - option |= LOG_PERROR; - break; - case 'p': - if (--argc == 0) { - usage(logger_usage); + int pri = LOG_USER | LOG_NOTICE; + int option = 0; + int fromStdinFlag = FALSE; + int stopLookingAtMeLikeThat = FALSE; + char *message, buf[1024], name[128]; + + /* Fill out the name string early (may be overwritten later */ + my_getpwuid(name, geteuid()); + + /* Parse any options */ + while (--argc > 0 && **(++argv) == '-') { + if (*((*argv) + 1) == '\0') { + fromStdinFlag = TRUE; } - pri = pencode(*(++argv)); - stopLookingAtMeLikeThat=TRUE; - break; - case 't': - if (--argc == 0) { - usage(logger_usage); + stopLookingAtMeLikeThat = FALSE; + while (*(++(*argv)) && stopLookingAtMeLikeThat == FALSE) { + switch (**argv) { + case 's': + option |= LOG_PERROR; + break; + case 'p': + if (--argc == 0) { + usage(logger_usage); + } + pri = pencode(*(++argv)); + stopLookingAtMeLikeThat = TRUE; + break; + case 't': + if (--argc == 0) { + usage(logger_usage); + } + strncpy(name, *(++argv), sizeof(name)); + stopLookingAtMeLikeThat = TRUE; + break; + default: + usage(logger_usage); + } } - strncpy(name, *(++argv), sizeof(name)); - stopLookingAtMeLikeThat=TRUE; - break; - default: - usage(logger_usage); - } } - } - if (fromStdinFlag==TRUE) { - /* read from stdin */ - int c, i=0; - while ((c = getc(stdin)) != EOF && i<sizeof(buf)) { - buf[i++]=c; - } - message=buf; - } else { - if (argc>=1) { - message = *argv; + if (fromStdinFlag == TRUE) { + /* read from stdin */ + int c, i = 0; + + while ((c = getc(stdin)) != EOF && i < sizeof(buf)) { + buf[i++] = c; + } + message = buf; } else { - fprintf(stderr, "No message\n"); - exit( FALSE); + if (argc >= 1) { + message = *argv; + } else { + fprintf(stderr, "No message\n"); + exit(FALSE); + } } - } - openlog( name, option, (pri | LOG_FACMASK)); - syslog( pri, message); - closelog(); + openlog(name, option, (pri | LOG_FACMASK)); + syslog(pri, message); + closelog(); - exit( TRUE); + exit(TRUE); } - |