mirror of
https://github.com/sheumann/hush.git
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So much for my evil optimization. Doesn't seem to work. Will test
more on it later. -Erik
This commit is contained in:
Erik Andersen
parent
7ab9c7ee52
commit
23dea9b712
18
Makefile
18
Makefile
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@ -59,6 +59,17 @@ else
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#Only staticly link when _not_ debugging
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ifeq ($(DOSTATIC),true)
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LDFLAGS += --static
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#
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#use '-ffunction-sections -fdata-sections' and '--gc-sections' if they work
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#to try and strip out any unused junk. Doesn't do much for me, but you may
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#want to give it a shot...
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#
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#ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
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# -o /dev/null -xc /dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
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# CFLAGS += -ffunction-sections -fdata-sections -DFUNCTION_SECTIONS
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# LDFLAGS += --gc-sections
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#endif
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#
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endif
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endif
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@ -74,13 +85,6 @@ ifdef BB_INIT_SCRIPT
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CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
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endif
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# use '-ffunction-sections -fdata-sections' and '--gc-sections' if they work
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ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
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-o /dev/null -xc /dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
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CFLAGS += -ffunction-sections -fdata-sections -DFUNCTION_SECTIONS
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LDFLAGS += --gc-sections
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endif
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all: busybox busybox.links doc
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doc: docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
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67
utility.c
67
utility.c
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@ -112,6 +112,7 @@ extern void fatalError(const char *s, ...)
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exit( FALSE);
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}
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#if defined BB_INIT
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/* Returns kernel version encoded as major*65536 + minor*256 + patch,
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* so, for example, to check if the kernel is greater than 2.2.11:
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* if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> }
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@ -128,7 +129,9 @@ extern int get_kernel_revision(void)
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sscanf(name.version, "%d.%d.%d", &major, &minor, &patch);
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return major * 65536 + minor * 256 + patch;
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}
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#endif /* BB_INIT */
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#if defined (BB_CP_MV) || defined (BB_DU)
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#define HASH_SIZE 311 /* Should be prime */
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#define hash_inode(i) ((i) % HASH_SIZE)
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@ -195,7 +198,9 @@ void reset_ino_dev_hashtable(void)
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}
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}
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#endif /* BB_CP_MV || BB_DU */
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#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN)
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/*
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* Return TRUE if a fileName is a directory.
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* Nonexistant files return FALSE.
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@ -226,7 +231,9 @@ int isDirectory(const char *fileName, const int followLinks, struct stat *statBu
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}
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return status;
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}
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#endif
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#if defined (BB_CP_MV)
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/*
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* Copy one file to another, while possibly preserving its modes, times, and
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* modes. Returns TRUE if successful, or FALSE on a failure with an error
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@ -376,9 +383,12 @@ copyFile(const char *srcName, const char *destName,
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return FALSE;
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}
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#endif /* BB_CP_MV */
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#if defined BB_TAR || defined BB_LS
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#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
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#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
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@ -420,8 +430,10 @@ const char *modeString(int mode)
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}
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return buf;
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}
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#endif /* BB_TAR || BB_LS */
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#if defined BB_TAR
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/*
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* Return the standard ls-like time string from a time_t
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* This is static and so is overwritten on each call.
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@ -446,7 +458,9 @@ const char *timeString(time_t timeVal)
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return buf;
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}
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#endif /* BB_TAR */
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#if defined BB_TAR || defined BB_CP_MV
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/*
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* Write all of the supplied buffer out to a file.
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* This does multiple writes as necessary.
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@ -472,8 +486,10 @@ int fullWrite(int fd, const char *buf, int len)
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return total;
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}
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#endif /* BB_TAR || BB_CP_MV */
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#if defined BB_TAR || defined BB_TAIL
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/*
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* Read all of the supplied buffer from a file.
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* This does multiple reads as necessary.
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@ -503,8 +519,16 @@ int fullRead(int fd, char *buf, int len)
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return total;
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}
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#endif /* BB_TAR || BB_TAIL */
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#if defined (BB_CHMOD_CHOWN_CHGRP) \
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|| defined (BB_CP_MV) \
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|| defined (BB_FIND) \
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|| defined (BB_INSMOD) \
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|| defined (BB_RM) \
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|| defined (BB_TAR)
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/*
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* Walk down all the directories under the specified
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* location, and do something (something specified
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@ -617,9 +641,11 @@ int recursiveAction(const char *fileName,
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return TRUE;
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}
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#endif /* BB_CHMOD_CHOWN_CHGRP || BB_CP_MV || BB_FIND || BB_LS || BB_INSMOD */
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#if defined (BB_TAR) || defined (BB_MKDIR)
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/*
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* Attempt to create the directories along the specified path, except for
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* the final component. The mode is given for the final directory only,
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@ -649,10 +675,15 @@ extern int createPath(const char *name, int mode)
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}
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return TRUE;
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}
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#endif /* BB_TAR || BB_MKDIR */
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#if defined (BB_CHMOD_CHOWN_CHGRP) || defined (BB_MKDIR)
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/* [ugoa]{+|-|=}[rwxst] */
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extern int parse_mode(const char *s, mode_t * theMode)
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{
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mode_t andMode =
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@ -745,9 +776,14 @@ extern int parse_mode(const char *s, mode_t * theMode)
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}
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#endif /* BB_CHMOD_CHOWN_CHGRP || BB_MKDIR */
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#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_PS || defined BB_LS || defined BB_TAR || defined BB_ID
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/* This parses entries in /etc/passwd and /etc/group. This is desirable
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* for BusyBox, since we want to avoid using the glibc NSS stuff, which
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* increases target size and is often not needed or wanted for embedded
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@ -852,6 +888,10 @@ gid_t my_getpwnamegid(char *name)
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return gid;
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}
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#endif /* BB_CHMOD_CHOWN_CHGRP || BB_PS || BB_LS || BB_TAR || BB_ID */
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#if (defined BB_CHVT) || (defined BB_DEALLOCVT)
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#include <linux/kd.h>
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@ -936,9 +976,11 @@ int get_console_fd(char *tty_name)
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}
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#endif /* BB_CHVT || BB_DEALLOCVT */
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#if !defined BB_REGEXP
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#if !defined BB_REGEXP && (defined BB_GREP || defined BB_SED)
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/* Do a case insensitive strstr() */
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char *stristr(char *haystack, const char *needle)
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{
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@ -1009,9 +1051,11 @@ extern int replace_match(char *haystack, char *needle, char *newNeedle,
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else
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return FALSE;
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}
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#endif /* ! BB_REGEXP */
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#endif /* ! BB_REGEXP && (BB_GREP || BB_SED) */
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#if defined BB_FIND
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/*
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* Routine to see if a text string is matched by a wildcard pattern.
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* Returns TRUE if the text is matched, or FALSE if it is not matched
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@ -1111,10 +1155,12 @@ extern int check_wildcard_match(const char *text, const char *pattern)
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return TRUE;
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}
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#endif /* BB_FIND */
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#if defined BB_DF || defined BB_MTAB
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/*
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* Given a block device, find the mount table entry if that block device
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* is mounted.
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@ -1153,9 +1199,11 @@ extern struct mntent *findMountPoint(const char *name, const char *table)
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endmntent(mountTable);
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return mountEntry;
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}
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#endif /* BB_DF || BB_MTAB */
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#if defined BB_DD || defined BB_TAIL
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/*
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* Read a number with a possible multiplier.
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* Returns -1 if the number format is illegal.
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@ -1202,8 +1250,10 @@ extern long getNum(const char *cp)
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return value;
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}
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#endif /* BB_DD || BB_TAIL */
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#if defined BB_INIT || defined BB_SYSLOGD
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/* try to open up the specified device */
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extern int device_open(char *device, int mode)
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{
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@ -1222,11 +1272,15 @@ extern int device_open(char *device, int mode)
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fcntl(fd, F_SETFL, mode);
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return fd;
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}
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#endif /* BB_INIT BB_SYSLOGD */
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#if defined BB_KILLALL || ( defined BB_FEATURE_LINUXRC && ( defined BB_HALT || defined BB_REBOOT || defined BB_POWEROFF ))
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#ifdef BB_FEATURE_USE_DEVPS_PATCH
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#include <linux/devps.h>
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#endif
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#if defined BB_FEATURE_USE_DEVPS_PATCH
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/* findPidByName()
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*
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* This finds the pid of the specified process,
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@ -1365,6 +1419,7 @@ extern pid_t* findPidByName( char* pidName)
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return pidList;
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}
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#endif /* BB_FEATURE_USE_DEVPS_PATCH */
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#endif /* BB_KILLALL || ( BB_FEATURE_LINUXRC && ( BB_HALT || BB_REBOOT || BB_POWEROFF )) */
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/* this should really be farmed out to libbusybox.a */
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extern void *xmalloc(size_t size)
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@ -1376,7 +1431,7 @@ extern void *xmalloc(size_t size)
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return cp;
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}
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#if (__GLIBC__ < 2)
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#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT)
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extern int vdprintf(int d, const char *format, va_list ap)
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{
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char buf[BUF_SIZE];
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@ -1385,8 +1440,9 @@ extern int vdprintf(int d, const char *format, va_list ap)
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len = vsprintf(buf, format, ap);
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return write(d, buf, len);
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}
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#endif
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#endif /* BB_SYSLOGD */
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#if defined BB_FEATURE_MOUNT_LOOP
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extern int del_loop(const char *device)
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{
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int fd;
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@ -1470,7 +1526,9 @@ extern char *find_unused_loop_device(void)
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}
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return NULL;
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}
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#endif /* BB_FEATURE_MOUNT_LOOP */
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#if defined BB_MOUNT || defined BB_DF || ( defined BB_UMOUNT && ! defined BB_MTAB)
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extern int find_real_root_device_name(char* name)
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{
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DIR *dir;
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@ -1512,6 +1570,7 @@ extern int find_real_root_device_name(char* name)
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return( FALSE);
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}
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#endif
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const unsigned int CSTRING_BUFFER_LENGTH = 128;
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/* recursive parser that returns cstrings of arbitrary length
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