1 #pragma ident "%Z%%M% %I% %E% SMI" 2 3 /* static char elsieid[] = "@(#)scheck.c 8.16"; */ 4 5 /*LINTLIBRARY*/ 6 7 #include "private.h" 8 9 char * 10 scheck(string, format) 11 const char * const string; 12 char * const format; 13 { 14 register char *fbuf; 15 register const char *fp; 16 register char *tp; 17 register int c; 18 register char *result; 19 char dummy; 20 static char nada; 21 22 result = &nada; 23 if (string == NULL || format == NULL) 24 return (result); 25 fbuf = imalloc((int)(2 * strlen(format) + 4)); 26 if (fbuf == NULL) 27 return (result); 28 fp = format; 29 tp = fbuf; 30 while ((*tp++ = c = *fp++) != '\0') { 31 if (c != '%') 32 continue; 33 if (*fp == '%') { 34 *tp++ = *fp++; 35 continue; 36 } 37 *tp++ = '*'; 38 if (*fp == '*') 39 ++fp; 40 while (is_digit(*fp)) 41 *tp++ = *fp++; 42 if (*fp == 'l' || *fp == 'h') 43 *tp++ = *fp++; 44 else if (*fp == '[') 45 do *tp++ = *fp++; 46 while (*fp != '\0' && *fp != ']'); 47 if ((*tp++ = *fp++) == '\0') 48 break; 49 } 50 *(tp - 1) = '%'; 51 *tp++ = 'c'; 52 *tp = '\0'; 53 if (sscanf(string, fbuf, &dummy) != 1) 54 result = (char *)format; 55 ifree(fbuf); 56 return (result); 57 } 58