diff options
author | Eric Andersen <andersen@codepoet.org> | 1999-10-13 02:26:06 +0400 |
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committer | Eric Andersen <andersen@codepoet.org> | 1999-10-13 02:26:06 +0400 |
commit | 3cf52d19581b2077480e7d2e63010baa1f5399c1 (patch) | |
tree | d91b0cb332ebc976126e36a394655dde7a15d8b1 /dmesg.c | |
parent | 2ce1edcf544ac675e6762c9861a6b918401ea716 (diff) |
More stuff...
Diffstat (limited to 'dmesg.c')
-rw-r--r-- | dmesg.c | 127 |
1 files changed, 65 insertions, 62 deletions
@@ -14,7 +14,6 @@ #include <linux/unistd.h> #include <stdio.h> -#include <getopt.h> #define __NR_klog __NR_syslog @@ -22,74 +21,78 @@ #include <sys/klog.h> #define klog klogctl #else -static inline _syscall3(int,klog,int,type,char *,b,int,len) -#endif /* __GLIBC__ */ +static inline _syscall3 (int, klog, int, type, char *, b, int, len) +#endif /* __GLIBC__ */ -const char dmesg_usage[] = "dmesg"; -int -dmesg_main(int argc, char * * argv) + +static const char dmesg_usage[] = "dmesg [-c] [-n level]\n"; + +int dmesg_main (int argc, char **argv) { - char buf[4096]; - int i; - int n; - int c; - int level = 0; - int lastc; - int cmd = 3; + char buf[4096]; + int i; + int n; + int level = 0; + int lastc; + int cmd = 3; - while ((c = getopt( argc, argv, "cn:" )) != EOF) { - switch (c) { - case 'c': - cmd = 4; - break; - case 'n': - cmd = 8; - level = atoi(optarg); - break; - case '?': - default: - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } - } - argc -= optind; - argv += optind; - - if (argc > 1) { - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } + argc--; + argv++; - if (cmd == 8) { - n = klog( cmd, NULL, level ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } - exit( 0 ); - } + /* Parse any options */ + while (argc && **argv == '-') { + while (*++(*argv)) + switch (**argv) { + case 'c': + cmd = 4; + break; + case 'n': + cmd = 8; + if (--argc == 0) + goto end; + level = atoi (*(++argv)); + --argc; + ++argv; + break; + default: + goto end; + } + } - n = klog( cmd, buf, sizeof( buf ) ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } + if (cmd == 8) { + n = klog (cmd, NULL, level); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + exit (TRUE); + } - lastc = '\n'; - for (i = 0; i < n; i++) { - if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { - i++; - while (buf[i] >= '0' && buf[i] <= '9') - i++; - if (buf[i] == '>') + n = klog (cmd, buf, sizeof (buf)); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + + lastc = '\n'; + for (i = 0; i < n; i++) { + if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { i++; - } - lastc = buf[i]; - putchar( lastc ); - } - if (lastc != '\n') - putchar( '\n' ); - return 0; + while (buf[i] >= '0' && buf[i] <= '9') + i++; + if (buf[i] == '>') + i++; + } + lastc = buf[i]; + putchar (lastc); + } + if (lastc != '\n') + putchar ('\n'); + exit (TRUE); + + end: + fprintf (stderr, "Usage: %s\n", dmesg_usage); + exit (FALSE); } |