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Vodz last_patch120, more busybox integration, saves 330 Bytes. Tested.

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This commit is contained in:
Glenn L McGrath 2003-12-26 02:19:34 +00:00
parent 3b1a74467a
commit ab8215431f
1 changed files with 45 additions and 65 deletions
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110
procps/sysctl.c
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@ -34,7 +34,6 @@
/* /*
* Function Prototypes * Function Prototypes
*/ */
static int sysctl_usage(void);
static int sysctl_read_setting(const char *setting, int output); static int sysctl_read_setting(const char *setting, int output);
static int sysctl_write_setting(const char *setting, int output); static int sysctl_write_setting(const char *setting, int output);
static int sysctl_preload_file(const char *filename, int output); static int sysctl_preload_file(const char *filename, int output);
@ -43,28 +42,33 @@ static int sysctl_display_all(const char *path, int output, int show_table);
/* /*
* Globals... * Globals...
*/ */
static const char *PROC_PATH = "/proc/sys/"; static const char PROC_PATH[] = "/proc/sys/";
static const char *DEFAULT_PRELOAD = "/etc/sysctl.conf"; static const char DEFAULT_PRELOAD[] = "/etc/sysctl.conf";
/* error messages */ /* error messages */
static const char *ERR_UNKNOWN_PARAMETER = "error: Unknown parameter '%s'\n"; static const char ERR_UNKNOWN_PARAMETER[] = "error: Unknown parameter '%s'\n";
static const char *ERR_MALFORMED_SETTING = "error: Malformed setting '%s'\n"; static const char ERR_MALFORMED_SETTING[] = "error: Malformed setting '%s'\n";
static const char *ERR_NO_EQUALS = static const char ERR_NO_EQUALS[] =
"error: '%s' must be of the form name=value\n"; "error: '%s' must be of the form name=value\n";
static const char *ERR_INVALID_KEY = "error: '%s' is an unknown key\n"; static const char ERR_INVALID_KEY[] = "error: '%s' is an unknown key\n";
static const char *ERR_UNKNOWN_WRITING = static const char ERR_UNKNOWN_WRITING[] =
"error: unknown error %d setting key '%s'\n"; "error: unknown error %d setting key '%s'\n";
static const char *ERR_UNKNOWN_READING = static const char ERR_UNKNOWN_READING[] =
"error: unknown error %d reading key '%s'\n"; "error: unknown error %d reading key '%s'\n";
static const char *ERR_PERMISSION_DENIED = static const char ERR_PERMISSION_DENIED[] =
"error: permission denied on key '%s'\n"; "error: permission denied on key '%s'\n";
static const char *ERR_OPENING_DIR = "error: unable to open directory '%s'\n"; static const char ERR_OPENING_DIR[] = "error: unable to open directory '%s'\n";
static const char *ERR_PRELOAD_FILE = static const char ERR_PRELOAD_FILE[] =
"error: unable to open preload file '%s'\n"; "error: unable to open preload file '%s'\n";
static const char *WARN_BAD_LINE = static const char WARN_BAD_LINE[] =
"warning: %s(%d): invalid syntax, continuing...\n"; "warning: %s(%d): invalid syntax, continuing...\n";
static void dwrite_str(int fd, const char *buf)
{
write(fd, buf, strlen(buf));
}
/* /*
* sysctl_main()... * sysctl_main()...
*/ */
@ -76,7 +80,7 @@ int sysctl_main(int argc, char **argv)
int switches_allowed = 1; int switches_allowed = 1;
if (argc < 2) if (argc < 2)
return sysctl_usage(); bb_show_usage();
argv++; argv++;
@ -103,10 +107,10 @@ int sysctl_main(int argc, char **argv)
((*argv)[1] == 'a') ? 0 : 1); ((*argv)[1] == 'a') ? 0 : 1);
case 'h': case 'h':
case '?': case '?':
return sysctl_usage(); bb_show_usage();
default: default:
bb_error_msg(ERR_UNKNOWN_PARAMETER, *argv); bb_error_msg(ERR_UNKNOWN_PARAMETER, *argv);
return sysctl_usage(); bb_show_usage();
} }
} else { } else {
switches_allowed = 0; switches_allowed = 0;
@ -119,14 +123,6 @@ int sysctl_main(int argc, char **argv)
return retval; return retval;
} /* end sysctl_main() */ } /* end sysctl_main() */
/*
* Display the sysctl_usage format
*/
int sysctl_usage()
{
bb_show_usage();
return -1;
} /* end sysctl_usage() */
/* /*
@ -134,17 +130,18 @@ int sysctl_usage()
* preload the sysctl's from a conf file * preload the sysctl's from a conf file
* - we parse the file and then reform it (strip out whitespace) * - we parse the file and then reform it (strip out whitespace)
*/ */
#define PRELOAD_BUF 256
int sysctl_preload_file(const char *filename, int output) int sysctl_preload_file(const char *filename, int output)
{ {
int lineno = 0; int lineno = 0;
char oneline[256]; char oneline[PRELOAD_BUF];
char buffer[256]; char buffer[PRELOAD_BUF];
char *name, *value, *ptr; char *name, *value, *ptr;
FILE *fp = NULL; FILE *fp = NULL;
if (!filename || ((fp = fopen(filename, "r")) == NULL)) { if (!filename || ((fp = fopen(filename, "r")) == NULL)) {
bb_error_msg(ERR_PRELOAD_FILE, filename); bb_error_msg_and_die(ERR_PRELOAD_FILE, filename);
return 1;
} }
while (fgets(oneline, sizeof(oneline) - 1, fp)) { while (fgets(oneline, sizeof(oneline) - 1, fp)) {
@ -175,9 +172,9 @@ int sysctl_preload_file(const char *filename, int output)
while ((*value == ' ' || *value == '\t') && *value != 0) while ((*value == ' ' || *value == '\t') && *value != 0)
value++; value++;
strncpy(buffer, name, sizeof(buffer)); strcpy(buffer, name);
strncat(buffer, "=", sizeof(buffer)); strcat(buffer, "=");
strncat(buffer, value, sizeof(buffer)); strcat(buffer, value);
sysctl_write_setting(buffer, output); sysctl_write_setting(buffer, output);
} }
fclose(fp); fclose(fp);
@ -200,7 +197,7 @@ int sysctl_write_setting(const char *setting, int output)
if (!name) /* probably dont' want to display this err */ if (!name) /* probably dont' want to display this err */
return 0; return 0;
if (!(equals = index(setting, '='))) { if (!(equals = strchr(setting, '='))) {
bb_error_msg(ERR_NO_EQUALS, setting); bb_error_msg(ERR_NO_EQUALS, setting);
return -1; return -1;
} }
@ -212,16 +209,8 @@ int sysctl_write_setting(const char *setting, int output)
return -2; return -2;
} }
tmpname = bb_xasprintf(&tmpname, "%s%.*s", PROC_PATH, (equals - name), name);
(char *) xmalloc((equals - name + 1 + bb_strlen(PROC_PATH)) * outname = bb_xstrdup(tmpname + strlen(PROC_PATH));
sizeof(char));
outname = (char *) xmalloc((equals - name + 1) * sizeof(char));
strcpy(tmpname, PROC_PATH);
strncat(tmpname, name, (int) (equals - name));
tmpname[equals - name + bb_strlen(PROC_PATH)] = 0;
strncpy(outname, name, (int) (equals - name));
outname[equals - name] = 0;
while ((cptr = strchr(tmpname, '.')) != NULL) while ((cptr = strchr(tmpname, '.')) != NULL)
*cptr = '/'; *cptr = '/';
@ -243,14 +232,14 @@ int sysctl_write_setting(const char *setting, int output)
} }
retval = -1; retval = -1;
} else { } else {
write(fd, value, bb_strlen(value)); dwrite_str(fd, value);
close(fd); close(fd);
if (output) { if (output) {
write(STDOUT_FILENO, outname, bb_strlen(outname)); dwrite_str(STDOUT_FILENO, outname);
write(STDOUT_FILENO, " = ", 3); dwrite_str(STDOUT_FILENO, " = ");
} }
write(STDOUT_FILENO, value, bb_strlen(value)); dwrite_str(STDOUT_FILENO, value);
write(STDOUT_FILENO, "\n", 1); dwrite_str(STDOUT_FILENO, "\n");
} }
/* cleanup */ /* cleanup */
@ -275,14 +264,8 @@ int sysctl_read_setting(const char *setting, int output)
if (!setting || !*setting) if (!setting || !*setting)
bb_error_msg(ERR_INVALID_KEY, setting); bb_error_msg(ERR_INVALID_KEY, setting);
tmpname = tmpname = concat_path_file(PROC_PATH, name);
(char *) xmalloc((bb_strlen(name) + bb_strlen(PROC_PATH) + 1) * outname = bb_xstrdup(tmpname + strlen(PROC_PATH));
sizeof(char));
outname = (char *) xmalloc((bb_strlen(name) + 1) * sizeof(char));
strcpy(tmpname, PROC_PATH);
strcat(tmpname, name);
strcpy(outname, name);
while ((cptr = strchr(tmpname, '.')) != NULL) while ((cptr = strchr(tmpname, '.')) != NULL)
*cptr = '/'; *cptr = '/';
@ -305,10 +288,10 @@ int sysctl_read_setting(const char *setting, int output)
} else { } else {
while (fgets(inbuf, sizeof(inbuf) - 1, fp)) { while (fgets(inbuf, sizeof(inbuf) - 1, fp)) {
if (output) { if (output) {
write(STDOUT_FILENO, outname, bb_strlen(outname)); dwrite_str(STDOUT_FILENO, outname);
write(STDOUT_FILENO, " = ", 3); dwrite_str(STDOUT_FILENO, " = ");
} }
write(STDOUT_FILENO, inbuf, bb_strlen(inbuf)); dwrite_str(STDOUT_FILENO, inbuf);
} }
fclose(fp); fclose(fp);
} }
@ -337,18 +320,14 @@ int sysctl_display_all(const char *path, int output, int show_table)
bb_perror_msg(ERR_OPENING_DIR, path); bb_perror_msg(ERR_OPENING_DIR, path);
retval = -1; retval = -1;
} else { } else {
readdir(dp);
readdir(dp); /* skip . and .. */
while ((de = readdir(dp)) != NULL) { while ((de = readdir(dp)) != NULL) {
tmpdir = tmpdir = concat_subpath_file(path, de->d_name);
(char *) xmalloc(bb_strlen(path) + bb_strlen(de->d_name) + 2); if(tmpdir == NULL)
strcpy(tmpdir, path); continue;
strcat(tmpdir, de->d_name);
if ((retval2 = stat(tmpdir, &ts)) != 0) if ((retval2 = stat(tmpdir, &ts)) != 0)
bb_perror_msg(tmpdir); bb_perror_msg(tmpdir);
else { else {
if (S_ISDIR(ts.st_mode)) { if (S_ISDIR(ts.st_mode)) {
strcat(tmpdir, "/");
sysctl_display_all(tmpdir, output, show_table); sysctl_display_all(tmpdir, output, show_table);
} else } else
retval |= retval |=
@ -369,4 +348,5 @@ int main(int argc, char **argv)
{ {
return sysctl_main(argc, argv); return sysctl_main(argc, argv);
} }
const char *bb_applet_name = "sysctl";
#endif #endif