1284990Scy#include <config.h> 2290000Sglebius#include <rc_cmdlength.h> 3284990Scy 4284990Scy#if HAVE_UNISTD_H 5284990Scy# include <unistd.h> 6284990Scy#endif 7284990Scy 8284990Scy 9284990Scy/* Bug 2853 */ 10284990Scy/* evaluate the length of the command sequence. This breaks at the first 11284990Scy * char that is not >= SPACE and <= 127 after trimming from the right. 12284990Scy */ 13284990Scysize_t 14284990Scyremoteconfig_cmdlength( 15284990Scy const char *src_buf, 16284990Scy const char *src_end 17284990Scy ) 18284990Scy{ 19284990Scy const char *scan; 20284990Scy unsigned char ch; 21284990Scy 22284990Scy /* trim whitespace & garbage from the right */ 23284990Scy while (src_end != src_buf) { 24284990Scy ch = src_end[-1]; 25284990Scy if (ch > ' ' && ch < 128) 26284990Scy break; 27284990Scy --src_end; 28284990Scy } 29284990Scy /* now do a forward scan */ 30284990Scy for (scan = src_buf; scan != src_end; ++scan) { 31284990Scy ch = scan[0]; 32284990Scy if ((ch < ' ' || ch >= 128) && ch != '\t') 33284990Scy break; 34284990Scy } 35284990Scy return (size_t)(scan - src_buf); 36284990Scy} 37