| 1 |
greg |
3.2 |
#ifndef lint |
| 2 |
greg |
3.3 |
static const char RCSid[] = "$Id: cvtcmd.c,v 3.2 2016/02/02 18:05:31 greg Exp $"; |
| 3 |
greg |
3.2 |
#endif |
| 4 |
greg |
3.1 |
/* |
| 5 |
|
|
* Convert a set of arguments into a command line for pipe() or system() |
| 6 |
|
|
* |
| 7 |
|
|
* Defines in paths.h |
| 8 |
|
|
*/ |
| 9 |
|
|
|
| 10 |
|
|
#include "paths.h" |
| 11 |
|
|
|
| 12 |
|
|
/* Check if any of the characters in str2 are found in str1 */ |
| 13 |
|
|
int |
| 14 |
|
|
matchany(const char *str1, const char *str2) |
| 15 |
|
|
{ |
| 16 |
|
|
while (*str1) { |
| 17 |
|
|
const char *cp = str2; |
| 18 |
|
|
while (*cp) |
| 19 |
|
|
if (*cp++ == *str1) |
| 20 |
|
|
return(*str1); |
| 21 |
|
|
++str1; |
| 22 |
|
|
} |
| 23 |
|
|
return(0); |
| 24 |
|
|
} |
| 25 |
|
|
|
| 26 |
|
|
/* Convert a set of arguments into a command line, being careful of specials */ |
| 27 |
|
|
char * |
| 28 |
|
|
convert_commandline(char *cmd, const int len, char *av[]) |
| 29 |
|
|
{ |
| 30 |
|
|
char *cp; |
| 31 |
|
|
|
| 32 |
|
|
for (cp = cmd; *av != NULL; av++) { |
| 33 |
|
|
const int n = strlen(*av); |
| 34 |
|
|
if (cp+n >= cmd+(len-3)) |
| 35 |
|
|
return(NULL); |
| 36 |
|
|
if (matchany(*av, SPECIALS)) { |
| 37 |
|
|
const int quote = |
| 38 |
|
|
#ifdef ALTQUOT |
| 39 |
|
|
strchr(*av, QUOTCHAR) ? ALTQUOT : |
| 40 |
|
|
#endif |
| 41 |
|
|
QUOTCHAR; |
| 42 |
|
|
*cp++ = quote; |
| 43 |
|
|
strcpy(cp, *av); |
| 44 |
|
|
cp += n; |
| 45 |
|
|
*cp++ = quote; |
| 46 |
|
|
} else { |
| 47 |
|
|
strcpy(cp, *av); |
| 48 |
|
|
cp += n; |
| 49 |
|
|
} |
| 50 |
|
|
*cp++ = ' '; |
| 51 |
|
|
} |
| 52 |
|
|
if (cp <= cmd) |
| 53 |
|
|
return(NULL); |
| 54 |
|
|
*--cp = '\0'; |
| 55 |
|
|
return(cmd); |
| 56 |
|
|
} |
