projects / apple / system_cmds.git / blame
| Commit | Line | Data |
|---|---|---|
| 887d5eed A |
1 | /* |
| 2 | ** This file is in the public domain, so clarified as of | |
| 3 | ** 2006-07-17 by Arthur David Olson. | |
| 4 | */ | |
| 5 | ||
| 2fc1e207 A |
6 | #ifndef lint |
| 7 | #ifndef NOID | |
| 887d5eed | 8 | static const char elsieid[] = "@(#)scheck.c 8.19"; |
| 2fc1e207 A |
9 | #endif /* !defined lint */ |
| 10 | #endif /* !defined NOID */ | |
| 11 | ||
| 12 | #ifndef lint | |
| 887d5eed A |
13 | static const char rcsid[] = |
| 14 | "$FreeBSD: head/contrib/tzcode/zic/scheck.c 192625 2009-05-23 06:31:50Z edwin $"; | |
| 2fc1e207 | 15 | #endif /* not lint */ |
| 1815bff5 A |
16 | |
| 17 | /*LINTLIBRARY*/ | |
| 18 | ||
| 19 | #include "private.h" | |
| 20 | ||
| 887d5eed A |
21 | const char * |
| 22 | scheck(string, format) | |
| 23 | const char * const string; | |
| 24 | const char * const format; | |
| 1815bff5 | 25 | { |
| 887d5eed A |
26 | register char * fbuf; |
| 27 | register const char * fp; | |
| 28 | register char * tp; | |
| 29 | register int c; | |
| 30 | register const char * result; | |
| 31 | char dummy; | |
| 1815bff5 | 32 | |
| 887d5eed | 33 | result = ""; |
| 1815bff5 A |
34 | if (string == NULL || format == NULL) |
| 35 | return result; | |
| 36 | fbuf = imalloc((int) (2 * strlen(format) + 4)); | |
| 37 | if (fbuf == NULL) | |
| 38 | return result; | |
| 39 | fp = format; | |
| 40 | tp = fbuf; | |
| 41 | while ((*tp++ = c = *fp++) != '\0') { | |
| 42 | if (c != '%') | |
| 43 | continue; | |
| 44 | if (*fp == '%') { | |
| 45 | *tp++ = *fp++; | |
| 46 | continue; | |
| 47 | } | |
| 48 | *tp++ = '*'; | |
| 49 | if (*fp == '*') | |
| 50 | ++fp; | |
| 51 | while (is_digit(*fp)) | |
| 52 | *tp++ = *fp++; | |
| 53 | if (*fp == 'l' || *fp == 'h') | |
| 54 | *tp++ = *fp++; | |
| 55 | else if (*fp == '[') | |
| 56 | do *tp++ = *fp++; | |
| 57 | while (*fp != '\0' && *fp != ']'); | |
| 58 | if ((*tp++ = *fp++) == '\0') | |
| 59 | break; | |
| 60 | } | |
| 61 | *(tp - 1) = '%'; | |
| 62 | *tp++ = 'c'; | |
| 63 | *tp = '\0'; | |
| 64 | if (sscanf(string, fbuf, &dummy) != 1) | |
| 65 | result = (char *) format; | |
| 66 | ifree(fbuf); | |
| 67 | return result; | |
| 68 | } |