Minor doc fix. Added several bugs to the todo list. Fixed the way init
authorEric Andersen <andersen@codepoet.org>
Wed, 31 May 2000 20:04:38 +0000 (20:04 -0000)
committerEric Andersen <andersen@codepoet.org>
Wed, 31 May 2000 20:04:38 +0000 (20:04 -0000)
scans /etc/inittab entries so that commands can contain ":"s.
 -Erik

Changelog
TODO
docs/busybox.net/index.html
init.c
init/init.c

index 44bcd37..911fedf 100644 (file)
--- a/Changelog
+++ b/Changelog
@@ -34,6 +34,9 @@
        * zcat now works (wasn't working since option parsing was broken)
        * Renamed "mnc" to the more correct "nc" (for netcat).
        * Makefile intelligence updates
+       * Changed the way init parses /etc/inittab entries to avoid problems
+           with commands that contain colons in them.  Fix thanks to 
+           Pavel Roskin <pavel_roskin@geocities.com>
        * More doc updates
 
 
diff --git a/TODO b/TODO
index c06f4c3..4082cfc 100644 (file)
--- a/TODO
+++ b/TODO
@@ -21,6 +21,18 @@ Bugs that need fixing:
  - 'grep foo$ file' doesn't work
  - 'grep *foo file' segfaults
  - ps dirent race bug (need to stat the file before attempting chdir)
+ - The following commands segfault:
+       chmod -R
+       chown -R
+       chgrp -R
+       cp -a -a
+       ln -s -s
+       rm -f
+       touch -c
+  - I believe that swaponoff may also be also broken (check it).
+  - It used to be that BusyBox tar would happily overwrite existing files on
+  an extraction.  However, as of 0.42, BusyBox tar simply dies as soon as an 
+  existing file is found.
 
 
 -----------
index ea46709..81fb4ba 100644 (file)
@@ -248,7 +248,7 @@ BusyBox is licensed under the
 <TR><TD BGCOLOR="#eeeee0">
 Current documentation for BusyBox includes: 
 <ul>
-    <li> <a href="BusyBox.html">BusyBox.html</a>
+    <li> <a href="ftp://ftp.lineo.com/pub/busybox/BusyBox.html">BusyBox.html</a>
                This is a list of the all the available commands in BusyBox with complete 
                usage information and examples of how to use each app.  I spent 
                a <em>lot</em> of time updating these docs and trying to make them 
diff --git a/init.c b/init.c
index 38e9131..0e12610 100644 (file)
--- a/init.c
+++ b/init.c
@@ -745,7 +745,7 @@ void parse_inittab(void)
 #ifdef BB_FEATURE_USE_INITTAB
        FILE *file;
        char buf[256], lineAsRead[256], tmpConsole[256];
-       char *p, *q, *r, *s;
+       char *id, *runlev, *action, *process, *eol;
        const struct initActionType *a = actions;
        int foundIt;
 
@@ -772,64 +772,69 @@ void parse_inittab(void)
 
        while (fgets(buf, 255, file) != NULL) {
                foundIt = FALSE;
-               for (p = buf; *p == ' ' || *p == '\t'; p++);
-               if (*p == '#' || *p == '\n')
+               /* Skip leading spaces */
+               for (id = buf; *id == ' ' || *id == '\t'; id++);
+
+               /* Skip the line if it's a comment */
+               if (*id == '#' || *id == '\n')
                        continue;
 
                /* Trim the trailing \n */
-               q = strrchr(p, '\n');
-               if (q != NULL)
-                       *q = '\0';
+               eol = strrchr(id, '\n');
+               if (eol != NULL)
+                       *eol = '\0';
 
                /* Keep a copy around for posterity's sake (and error msgs) */
                strcpy(lineAsRead, buf);
 
-               /* Grab the ID field */
-               s = p;
-               p = strchr(p, ':');
-               if (p != NULL || *(p + 1) != '\0') {
-                       *p = '\0';
-                       ++p;
+               /* Separate the ID field from the runlevels */
+               runlev = strchr(id, ':');
+               if (runlev == NULL || *(runlev + 1) == '\0') {
+                       message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
+                       continue;
+               } else {
+                       *runlev = '\0';
+                       ++runlev;
                }
 
-               /* Now peel off the process field from the end
-                * of the string */
-               q = strrchr(p, ':');
-               if (q == NULL || *(q + 1) == '\0') {
+               /* Separate the runlevels from the action */
+               action = strchr(runlev, ':');
+               if (action == NULL || *(action + 1) == '\0') {
                        message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
                        continue;
                } else {
-                       *q = '\0';
-                       ++q;
+                       *action = '\0';
+                       ++action;
                }
 
-               /* Now peel off the action field */
-               r = strrchr(p, ':');
-               if (r == NULL || *(r + 1) == '\0') {
+               /* Separate the action from the process */
+               process = strchr(action, ':');
+               if (process == NULL || *(process + 1) == '\0') {
                        message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
                        continue;
                } else {
-                       ++r;
+                       *process = '\0';
+                       ++process;
                }
 
                /* Ok, now process it */
                a = actions;
                while (a->name != 0) {
-                       if (strcmp(a->name, r) == 0) {
-                               if (*s != '\0') {
+                       if (strcmp(a->name, action) == 0) {
+                               if (*id != '\0') {
                                        struct stat statBuf;
 
                                        strcpy(tmpConsole, "/dev/");
-                                       strncat(tmpConsole, s, 200);
+                                       strncat(tmpConsole, id, 200);
                                        if (stat(tmpConsole, &statBuf) != 0) {
                                                message(LOG | CONSOLE,
                                                                "device '%s' does not exist.  Did you read the directions?\n",
                                                                tmpConsole);
                                                break;
                                        }
-                                       s = tmpConsole;
+                                       id = tmpConsole;
                                }
-                               new_initAction(a->action, q, s);
+                               new_initAction(a->action, process, id);
                                foundIt = TRUE;
                        }
                        a++;
index 38e9131..0e12610 100644 (file)
@@ -745,7 +745,7 @@ void parse_inittab(void)
 #ifdef BB_FEATURE_USE_INITTAB
        FILE *file;
        char buf[256], lineAsRead[256], tmpConsole[256];
-       char *p, *q, *r, *s;
+       char *id, *runlev, *action, *process, *eol;
        const struct initActionType *a = actions;
        int foundIt;
 
@@ -772,64 +772,69 @@ void parse_inittab(void)
 
        while (fgets(buf, 255, file) != NULL) {
                foundIt = FALSE;
-               for (p = buf; *p == ' ' || *p == '\t'; p++);
-               if (*p == '#' || *p == '\n')
+               /* Skip leading spaces */
+               for (id = buf; *id == ' ' || *id == '\t'; id++);
+
+               /* Skip the line if it's a comment */
+               if (*id == '#' || *id == '\n')
                        continue;
 
                /* Trim the trailing \n */
-               q = strrchr(p, '\n');
-               if (q != NULL)
-                       *q = '\0';
+               eol = strrchr(id, '\n');
+               if (eol != NULL)
+                       *eol = '\0';
 
                /* Keep a copy around for posterity's sake (and error msgs) */
                strcpy(lineAsRead, buf);
 
-               /* Grab the ID field */
-               s = p;
-               p = strchr(p, ':');
-               if (p != NULL || *(p + 1) != '\0') {
-                       *p = '\0';
-                       ++p;
+               /* Separate the ID field from the runlevels */
+               runlev = strchr(id, ':');
+               if (runlev == NULL || *(runlev + 1) == '\0') {
+                       message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
+                       continue;
+               } else {
+                       *runlev = '\0';
+                       ++runlev;
                }
 
-               /* Now peel off the process field from the end
-                * of the string */
-               q = strrchr(p, ':');
-               if (q == NULL || *(q + 1) == '\0') {
+               /* Separate the runlevels from the action */
+               action = strchr(runlev, ':');
+               if (action == NULL || *(action + 1) == '\0') {
                        message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
                        continue;
                } else {
-                       *q = '\0';
-                       ++q;
+                       *action = '\0';
+                       ++action;
                }
 
-               /* Now peel off the action field */
-               r = strrchr(p, ':');
-               if (r == NULL || *(r + 1) == '\0') {
+               /* Separate the action from the process */
+               process = strchr(action, ':');
+               if (process == NULL || *(process + 1) == '\0') {
                        message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
                        continue;
                } else {
-                       ++r;
+                       *process = '\0';
+                       ++process;
                }
 
                /* Ok, now process it */
                a = actions;
                while (a->name != 0) {
-                       if (strcmp(a->name, r) == 0) {
-                               if (*s != '\0') {
+                       if (strcmp(a->name, action) == 0) {
+                               if (*id != '\0') {
                                        struct stat statBuf;
 
                                        strcpy(tmpConsole, "/dev/");
-                                       strncat(tmpConsole, s, 200);
+                                       strncat(tmpConsole, id, 200);
                                        if (stat(tmpConsole, &statBuf) != 0) {
                                                message(LOG | CONSOLE,
                                                                "device '%s' does not exist.  Did you read the directions?\n",
                                                                tmpConsole);
                                                break;
                                        }
-                                       s = tmpConsole;
+                                       id = tmpConsole;
                                }
-                               new_initAction(a->action, q, s);
+                               new_initAction(a->action, process, id);
                                foundIt = TRUE;
                        }
                        a++;