755 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			755 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* $Id: indep.c,v 1.38 2007/05/23 15:06:05 inu Exp $ */
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| #include "fm.h"
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| #include <stdio.h>
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| #ifndef __MINGW32_VERSION
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| #include <pwd.h>
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| #endif /* __MINGW32_VERSION */
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| #include <sys/param.h>
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| #include <sys/types.h>
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| #include <stdlib.h>
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| #include "indep.h"
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| #include "Str.h"
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| #include <gc.h>
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| #include "myctype.h"
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| #include "entity.h"
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| 
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| unsigned char QUOTE_MAP[0x100] = {
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|     /* NUL SOH STX ETX EOT ENQ ACK BEL  BS  HT  LF  VT  FF  CR  SO  SI */
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|     24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
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|     /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN  EM SUB ESC  FS  GS  RS  US */
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|     24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
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|     /* SPC   !   "   #   $   %   &   '   (   )   *   +   ,   -   .   / */
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|     24, 72, 76, 40, 8, 40, 41, 72, 72, 72, 72, 40, 72, 8, 0, 64,
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|     /*   0   1   2   3   4   5   6   7   8   9   :   ;   <   =   >   ? */
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|     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 72, 74, 72, 75, 40,
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|     /*   @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O */
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|     72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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|     /*   P   Q   R   S   T   U   V   W   X   Y   Z   [   \   ]   ^   _ */
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|     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 72, 72, 72, 72, 0,
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|     /*   `   a   b   c   d   e   f   g   h   i   j   k   l   m   n   o */
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|     72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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|     /*   p   q   r   s   t   u   v   w   x   y   z   {   |   }   ~ DEL */
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|     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 72, 72, 72, 72, 24,
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| 
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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|     16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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| };
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| 
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| char *HTML_QUOTE_MAP[] = {
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|     NULL,
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|     "&",
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|     "<",
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|     ">",
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|     """,
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|     NULL,
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|     NULL,
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|     NULL,
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| };
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| 
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| clen_t
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| strtoclen(const char *s)
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| {
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| #ifdef HAVE_STRTOLL
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|     return strtoll(s, NULL, 10);
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| #elif defined(HAVE_STRTOQ)
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|     return strtoq(s, NULL, 10);
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| #elif defined(HAVE_ATOLL)
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|     return atoll(s);
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| #elif defined(HAVE_ATOQ)
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|     return atoq(s);
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| #else
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|     return atoi(s);
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| #endif
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| }
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| 
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| #ifndef HAVE_BCOPY
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| void
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| bcopy(const void *src, void *dest, int len)
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| {
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|     int i;
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|     if (src == dest)
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| 	return;
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|     if (src < dest) {
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| 	for (i = len - 1; i >= 0; i--)
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| 	    ((char *)dest)[i] = ((const char *)src)[i];
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|     }
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|     else {			/* src > dest */
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| 	for (i = 0; i < len; i++)
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| 	    ((char *)dest)[i] = ((const char *)src)[i];
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|     }
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| }
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| 
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| void
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| bzero(void *ptr, int len)
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| {
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|     int i;
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|     char *p = ptr;
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|     for (i = 0; i < len; i++)
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| 	*(p++) = 0;
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| }
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| #endif				/* not HAVE_BCOPY */
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| 
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| char *
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| allocStr(const char *s, int len)
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| {
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|     char *ptr;
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| 
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|     if (s == NULL)
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| 	return NULL;
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|     if (len < 0)
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| 	len = strlen(s);
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|     ptr = NewAtom_N(char, len + 1);
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|     if (ptr == NULL) {
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| 	fprintf(stderr, "fm: Can't allocate string. Give me more memory!\n");
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| 	exit(-1);
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|     }
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|     bcopy(s, ptr, len);
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|     ptr[len] = '\0';
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|     return ptr;
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| }
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| 
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| int
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| strCmp(const void *s1, const void *s2)
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| {
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|     return strcmp(*(const char **)s1, *(const char **)s2);
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| }
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| 
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| char *
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| currentdir()
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| {
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|     char *path;
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| #ifdef HAVE_GETCWD
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| #ifdef MAXPATHLEN
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|     path = NewAtom_N(char, MAXPATHLEN);
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|     getcwd(path, MAXPATHLEN);
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| #else
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|     path = getcwd(NULL, 0);
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| #endif
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| #else				/* not HAVE_GETCWD */
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| #ifdef HAVE_GETWD
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|     path = NewAtom_N(char, 1024);
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|     getwd(path);
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| #else				/* not HAVE_GETWD */
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|     FILE *f;
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|     char *p;
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|     path = NewAtom_N(char, 1024);
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|     f = popen("pwd", "r");
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|     fgets(path, 1024, f);
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|     pclose(f);
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|     for (p = path; *p; p++)
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| 	if (*p == '\n') {
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| 	    *p = '\0';
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| 	    break;
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| 	}
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| #endif				/* not HAVE_GETWD */
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| #endif				/* not HAVE_GETCWD */
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|     return path;
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| }
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| 
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| char *
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| cleanupName(char *name)
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| {
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|     char *buf, *p, *q;
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| 
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|     buf = allocStr(name, -1);
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|     p = buf;
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|     q = name;
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|     while (*q != '\0') {
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| 	if (strncmp(p, "/../", 4) == 0) {	/* foo/bar/../FOO */
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| 	    if (p - 2 == buf && strncmp(p - 2, "..", 2) == 0) {
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| 		/* ../../       */
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| 		p += 3;
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| 		q += 3;
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| 	    }
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| 	    else if (p - 3 >= buf && strncmp(p - 3, "/..", 3) == 0) {
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| 		/* ../../../    */
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| 		p += 3;
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| 		q += 3;
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| 	    }
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| 	    else {
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| 		while (p != buf && *--p != '/') ;	/* ->foo/FOO */
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| 		*p = '\0';
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| 		q += 3;
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| 		strcat(buf, q);
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| 	    }
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| 	}
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| 	else if (strcmp(p, "/..") == 0) {	/* foo/bar/..   */
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| 	    if (p - 2 == buf && strncmp(p - 2, "..", 2) == 0) {
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| 		/* ../..        */
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| 	    }
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| 	    else if (p - 3 >= buf && strncmp(p - 3, "/..", 3) == 0) {
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| 		/* ../../..     */
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| 	    }
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| 	    else {
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| 		while (p != buf && *--p != '/') ;	/* ->foo/ */
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| 		*++p = '\0';
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| 	    }
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| 	    break;
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| 	}
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| 	else if (strncmp(p, "/./", 3) == 0) {	/* foo/./bar */
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| 	    *p = '\0';		/* -> foo/bar           */
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| 	    q += 2;
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| 	    strcat(buf, q);
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| 	}
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| 	else if (strcmp(p, "/.") == 0) {	/* foo/. */
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| 	    *++p = '\0';	/* -> foo/              */
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| 	    break;
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| 	}
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| 	else if (strncmp(p, "//", 2) == 0) {	/* foo//bar */
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| 	    /* -> foo/bar           */
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| 	    *p = '\0';
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| 	    q++;
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| 	    strcat(buf, q);
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| 	}
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| 	else {
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| 	    p++;
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| 	    q++;
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| 	}
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|     }
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|     return buf;
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| }
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| 
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| char *
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| expandPath(char *name)
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| {
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|     char *p;
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|     struct passwd *passent, *getpwnam(const char *);
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|     Str extpath = NULL;
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| 
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|     if (name == NULL)
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| 	return NULL;
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|     p = name;
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|     if (*p == '~') {
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| 	p++;
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| #ifndef __MINGW32_VERSION
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| 	if (IS_ALPHA(*p)) {
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| 	    char *q = strchr(p, '/');
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| 	    if (q) {		/* ~user/dir... */
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| 		passent = getpwnam(allocStr(p, q - p));
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| 		p = q;
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| 	    }
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| 	    else {		/* ~user */
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| 		passent = getpwnam(p);
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| 		p = "";
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| 	    }
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| 	    if (!passent)
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| 		goto rest;
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| 	    extpath = Strnew_charp(passent->pw_dir);
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| 	} else
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| #endif /* __MINGW32_VERSION */
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| 	  if (*p == '/' || *p == '\0') {	/* ~/dir... or ~ */
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| 	    extpath = Strnew_charp(getenv("HOME"));
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| 	}
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| 	else
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| 	    goto rest;
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| 	if (Strcmp_charp(extpath, "/") == 0 && *p == '/')
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| 	    p++;
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| 	Strcat_charp(extpath, p);
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| 	return extpath->ptr;
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|     }
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|   rest:
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|     return name;
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| }
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| 
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| #ifndef HAVE_STRCHR
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| char *
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| strchr(const char *s, int c)
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| {
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|     while (*s) {
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| 	if ((unsigned char)*s == c)
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| 	    return (char *)s;
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| 	s++;
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|     }
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|     return NULL;
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| }
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| #endif				/* not HAVE_STRCHR */
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| 
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| #ifndef HAVE_STRCASECMP
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| int
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| strcasecmp(const char *s1, const char *s2)
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| {
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|     int x;
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|     while (*s1) {
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| 	x = TOLOWER(*s1) - TOLOWER(*s2);
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| 	if (x != 0)
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| 	    return x;
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| 	s1++;
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| 	s2++;
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|     }
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|     return -TOLOWER(*s2);
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| }
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| 
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| int
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| strncasecmp(const char *s1, const char *s2, size_t n)
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| {
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|     int x;
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|     while (*s1 && n) {
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| 	x = TOLOWER(*s1) - TOLOWER(*s2);
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| 	if (x != 0)
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| 	    return x;
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| 	s1++;
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| 	s2++;
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| 	n--;
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|     }
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|     return n ? -TOLOWER(*s2) : 0;
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| }
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| #endif				/* not HAVE_STRCASECMP */
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| 
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| #ifndef HAVE_STRCASESTR
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| /* string search using the simplest algorithm */
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| char *
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| strcasestr(const char *s1, const char *s2)
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| {
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|     int len1, len2;
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|     if (s2 == NULL)
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| 	return (char *)s1;
 | |
|     if (*s2 == '\0')
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| 	return (char *)s1;
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|     len1 = strlen(s1);
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|     len2 = strlen(s2);
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|     while (*s1 && len1 >= len2) {
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| 	if (strncasecmp(s1, s2, len2) == 0)
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| 	    return (char *)s1;
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| 	s1++;
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| 	len1--;
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|     }
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|     return 0;
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| }
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| #endif
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| 
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| static int
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| strcasematch(char *s1, char *s2)
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| {
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|     int x;
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|     while (*s1) {
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| 	if (*s2 == '\0')
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| 	    return 1;
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| 	x = TOLOWER(*s1) - TOLOWER(*s2);
 | |
| 	if (x != 0)
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| 	    break;
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| 	s1++;
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| 	s2++;
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|     }
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|     return (*s2 == '\0');
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| }
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| 
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| /* search multiple strings */
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| int
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| strcasemstr(char *str, char *srch[], char **ret_ptr)
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| {
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|     int i;
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|     while (*str) {
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| 	for (i = 0; srch[i]; i++) {
 | |
| 	    if (strcasematch(str, srch[i])) {
 | |
| 		if (ret_ptr)
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| 		    *ret_ptr = str;
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| 		return i;
 | |
| 	    }
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| 	}
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| 	str++;
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|     }
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|     return -1;
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| }
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| 
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| char *
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| remove_space(char *str)
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| {
 | |
|     char *p, *q;
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| 
 | |
|     for (p = str; *p && IS_SPACE(*p); p++) ;
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|     for (q = p; *q; q++) ;
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|     for (; q > p && IS_SPACE(*(q - 1)); q--) ;
 | |
|     if (*q != '\0')
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| 	return Strnew_charp_n(p, q - p)->ptr;
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|     return p;
 | |
| }
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| 
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| int
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| non_null(char *s)
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| {
 | |
|     if (s == NULL)
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| 	return FALSE;
 | |
|     while (*s) {
 | |
| 	if (!IS_SPACE(*s))
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| 	    return TRUE;
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| 	s++;
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|     }
 | |
|     return FALSE;
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| }
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| 
 | |
| void
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| cleanup_line(Str s, int mode)
 | |
| {
 | |
|     if (s->length >= 2 &&
 | |
| 	s->ptr[s->length - 2] == '\r' && s->ptr[s->length - 1] == '\n') {
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| 	Strshrink(s, 2);
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| 	Strcat_char(s, '\n');
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|     }
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|     else if (Strlastchar(s) == '\r')
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| 	s->ptr[s->length - 1] = '\n';
 | |
|     else if (Strlastchar(s) != '\n')
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| 	Strcat_char(s, '\n');
 | |
|     if (mode != PAGER_MODE) {
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| 	int i;
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| 	for (i = 0; i < s->length; i++) {
 | |
| 	    if (s->ptr[i] == '\0')
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| 		s->ptr[i] = ' ';
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| 	}
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|     }
 | |
| }
 | |
| 
 | |
| int
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| getescapechar(char **str)
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| {
 | |
|     int dummy = -1;
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|     char *p = *str, *q;
 | |
|     int strict_entity = TRUE;
 | |
| 
 | |
|     if (*p == '&')
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| 	p++;
 | |
|     if (*p == '#') {
 | |
| 	p++;
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| 	if (*p == 'x' || *p == 'X') {
 | |
| 	    p++;
 | |
| 	    if (!IS_XDIGIT(*p)) {
 | |
| 		*str = p;
 | |
| 		return -1;
 | |
| 	    }
 | |
| 	    for (dummy = GET_MYCDIGIT(*p), p++; IS_XDIGIT(*p); p++)
 | |
| 		dummy = dummy * 0x10 + GET_MYCDIGIT(*p);
 | |
| 	    if (*p == ';')
 | |
| 		p++;
 | |
| 	    *str = p;
 | |
| 	    return dummy;
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (!IS_DIGIT(*p)) {
 | |
| 		*str = p;
 | |
| 		return -1;
 | |
| 	    }
 | |
| 	    for (dummy = GET_MYCDIGIT(*p), p++; IS_DIGIT(*p); p++)
 | |
| 		dummy = dummy * 10 + GET_MYCDIGIT(*p);
 | |
| 	    if (*p == ';')
 | |
| 		p++;
 | |
| 	    *str = p;
 | |
| 	    return dummy;
 | |
| 	}
 | |
|     }
 | |
|     if (!IS_ALPHA(*p)) {
 | |
| 	*str = p;
 | |
| 	return -1;
 | |
|     }
 | |
|     q = p;
 | |
|     for (p++; IS_ALNUM(*p); p++) ;
 | |
|     q = allocStr(q, p - q);
 | |
|     if (strcasestr("lt gt amp quot nbsp", q) && *p != '=') {
 | |
| 	/* a character entity MUST be terminated with ";". However,
 | |
| 	 * there's MANY web pages which uses < , > or something
 | |
| 	 * like them as <, >, etc. Therefore, we treat the most
 | |
| 	 * popular character entities (including &#xxxx;) without
 | |
| 	 * the last ";" as character entities. If the trailing character
 | |
| 	 * is "=", it must be a part of query in an URL. So <=, >=, etc.
 | |
| 	 * are not regarded as character entities.
 | |
| 	 */
 | |
| 	strict_entity = FALSE;
 | |
|     }
 | |
|     if (*p == ';')
 | |
| 	p++;
 | |
|     else if (strict_entity) {
 | |
| 	*str = p;
 | |
| 	return -1;
 | |
|     }
 | |
|     *str = p;
 | |
|     return getHash_si(&entity, q, -1);
 | |
| }
 | |
| 
 | |
| char *
 | |
| getescapecmd(char **s)
 | |
| {
 | |
|     char *save = *s;
 | |
|     Str tmp;
 | |
|     int ch = getescapechar(s);
 | |
| 
 | |
|     if (ch >= 0)
 | |
| 	return conv_entity(ch);
 | |
| 
 | |
|     if (*save != '&')
 | |
| 	tmp = Strnew_charp("&");
 | |
|     else
 | |
| 	tmp = Strnew();
 | |
|     Strcat_charp_n(tmp, save, *s - save);
 | |
|     return tmp->ptr;
 | |
| }
 | |
| 
 | |
| char *
 | |
| html_quote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p, *q;
 | |
| 
 | |
|     for (p = str; *p; p++) {
 | |
| 	q = html_quote_char(*p);
 | |
| 	if (q) {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 	    Strcat_charp(tmp, q);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	}
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| char *
 | |
| html_unquote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p, *q;
 | |
| 
 | |
|     for (p = str; *p;) {
 | |
| 	if (*p == '&') {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 	    q = getescapecmd(&p);
 | |
| 	    Strcat_charp(tmp, q);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	    p++;
 | |
| 	}
 | |
|     }
 | |
| 
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| static char xdigit[0x10] = "0123456789ABCDEF";
 | |
| 
 | |
| #define url_unquote_char(pstr) \
 | |
|   ((IS_XDIGIT((*(pstr))[1]) && IS_XDIGIT((*(pstr))[2])) ? \
 | |
|     (*(pstr) += 3, (GET_MYCDIGIT((*(pstr))[-2]) << 4) | GET_MYCDIGIT((*(pstr))[-1])) : \
 | |
|    -1)
 | |
| 
 | |
| char *
 | |
| url_quote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p;
 | |
| 
 | |
|     for (p = str; *p; p++) {
 | |
| 	if (is_url_quote(*p)) {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 	    Strcat_char(tmp, '%');
 | |
| 	    Strcat_char(tmp, xdigit[((unsigned char)*p >> 4) & 0xF]);
 | |
| 	    Strcat_char(tmp, xdigit[(unsigned char)*p & 0xF]);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	}
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| char *
 | |
| file_quote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p;
 | |
|     char buf[4];
 | |
| 
 | |
|     for (p = str; *p; p++) {
 | |
| 	if (is_file_quote(*p)) {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 	    sprintf(buf, "%%%02X", (unsigned char)*p);
 | |
| 	    Strcat_charp(tmp, buf);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	}
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| char *
 | |
| file_unquote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p, *q;
 | |
|     int c;
 | |
| 
 | |
|     for (p = str; *p;) {
 | |
| 	if (*p == '%') {
 | |
| 	    q = p;
 | |
| 	    c = url_unquote_char(&q);
 | |
| 	    if (c >= 0) {
 | |
| 		if (tmp == NULL)
 | |
| 		    tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 		if (c != '\0' && c != '\n' && c != '\r')
 | |
| 		    Strcat_char(tmp, (char)c);
 | |
| 		p = q;
 | |
| 		continue;
 | |
| 	    }
 | |
| 	}
 | |
| 	if (tmp)
 | |
| 	    Strcat_char(tmp, *p);
 | |
| 	p++;
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| Str
 | |
| Str_form_quote(Str x)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p = x->ptr, *ep = x->ptr + x->length;
 | |
|     char buf[4];
 | |
| 
 | |
|     for (; p < ep; p++) {
 | |
| 	if (*p == ' ') {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(x->ptr, (int)(p - x->ptr));
 | |
| 	    Strcat_char(tmp, '+');
 | |
| 	}
 | |
| 	else if (is_url_unsafe(*p)) {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(x->ptr, (int)(p - x->ptr));
 | |
| 	    sprintf(buf, "%%%02X", (unsigned char)*p);
 | |
| 	    Strcat_charp(tmp, buf);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	}
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp;
 | |
|     return x;
 | |
| }
 | |
| 
 | |
| 
 | |
| Str
 | |
| Str_url_unquote(Str x, int is_form, int safe)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p = x->ptr, *ep = x->ptr + x->length, *q;
 | |
|     int c;
 | |
| 
 | |
|     for (; p < ep;) {
 | |
| 	if (is_form && *p == '+') {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(x->ptr, (int)(p - x->ptr));
 | |
| 	    Strcat_char(tmp, ' ');
 | |
| 	    p++;
 | |
| 	    continue;
 | |
| 	}
 | |
| 	else if (*p == '%') {
 | |
| 	    q = p;
 | |
| 	    c = url_unquote_char(&q);
 | |
| 	    if (c >= 0 && (!safe || !IS_ASCII(c) || !is_file_quote(c))) {
 | |
| 		if (tmp == NULL)
 | |
| 		    tmp = Strnew_charp_n(x->ptr, (int)(p - x->ptr));
 | |
| 		Strcat_char(tmp, (char)c);
 | |
| 		p = q;
 | |
| 		continue;
 | |
| 	    }
 | |
| 	}
 | |
| 	if (tmp)
 | |
| 	    Strcat_char(tmp, *p);
 | |
| 	p++;
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp;
 | |
|     return x;
 | |
| }
 | |
| 
 | |
| char *
 | |
| shell_quote(char *str)
 | |
| {
 | |
|     Str tmp = NULL;
 | |
|     char *p;
 | |
| 
 | |
|     for (p = str; *p; p++) {
 | |
| 	if (is_shell_unsafe(*p)) {
 | |
| 	    if (tmp == NULL)
 | |
| 		tmp = Strnew_charp_n(str, (int)(p - str));
 | |
| 	    Strcat_char(tmp, '\\');
 | |
| 	    Strcat_char(tmp, *p);
 | |
| 	}
 | |
| 	else {
 | |
| 	    if (tmp)
 | |
| 		Strcat_char(tmp, *p);
 | |
| 	}
 | |
|     }
 | |
|     if (tmp)
 | |
| 	return tmp->ptr;
 | |
|     return str;
 | |
| }
 | |
| 
 | |
| static char *
 | |
| w3m_dir(const char *name, char *dft)
 | |
| {
 | |
| #ifdef USE_PATH_ENVVAR
 | |
|     char *value = getenv(name);
 | |
|     return value ? value : dft;
 | |
| #else
 | |
|     return dft;
 | |
| #endif
 | |
| }
 | |
| 
 | |
| char *
 | |
| w3m_auxbin_dir()
 | |
| {
 | |
|     return w3m_dir("W3M_AUXBIN_DIR", AUXBIN_DIR);
 | |
| }
 | |
| 
 | |
| char *
 | |
| w3m_lib_dir()
 | |
| {
 | |
|     /* FIXME: use W3M_CGIBIN_DIR? */
 | |
|     return w3m_dir("W3M_LIB_DIR", CGIBIN_DIR);
 | |
| }
 | |
| 
 | |
| char *
 | |
| w3m_etc_dir()
 | |
| {
 | |
|     return w3m_dir("W3M_ETC_DIR", ETC_DIR);
 | |
| }
 | |
| 
 | |
| char *
 | |
| w3m_conf_dir()
 | |
| {
 | |
|     return w3m_dir("W3M_CONF_DIR", CONF_DIR);
 | |
| }
 | |
| 
 | |
| char *
 | |
| w3m_help_dir()
 | |
| {
 | |
|     return w3m_dir("W3M_HELP_DIR", HELP_DIR);
 | |
| }
 | |
| /* Local Variables:    */
 | |
| /* c-basic-offset: 4   */
 | |
| /* tab-width: 8        */
 | |
| /* End:                */
 |