纯C语言读写ini配置文件

/* 通用C语言函数：文本文件有关操作，.CFG/.INI类配置文件读写。我们知道WINDOWS下的软件可以使用.INI文件 处理程序配置，那么在WIN32、*NIX、Solaris上又如何才能读写.CFG/.INI类配置文件? 你可以使用本程序的有关函 数很方便地实现。 */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> typedef unsigned char USGC; #ifndef min #define min(a,b) (((a) < (b)) ? (a) : (b)) #define max(a,b) (((a) > (b)) ? (a) : (b)) #endif #ifdef WIN32 #define snprintf _snprintf #endif struct txt_line_flds { int fldsp; /* fld start pointer */ int fldlen; /* fld len */ }; #define MAX_TXT_LINE_FLD 128 #define MAX_CFG_BUF 512 #define INI_OK 0 #define INI_SECTION_NOT_FOUND -1 #define INI_KEY_NOT_FOUND -2 #define INI_ERR -10 #define INI_ERR_FILE -10 #define INI_ERR_OPEN_FILE -10 #define INI_ERR_CREATE_FILE -11 #define INI_ERR_READ_FILE -12 #define INI_ERR_WRITE_FILE -13 #define INI_ERR_FILE_FORMAT -14 #define INI_ERR_SYSTEM -20 #define INI_ERR_SYSTEM_CALL -20 #define INI_ERR_INTERNAL -21 #define INI_ERR_EXCEED_BUF_SIZE -22 #define INI_ERR_NULLSECTION -23 #define INI_ERR_NULLKEY -24 #define INI_ERR_NULLBUF -25 #define INI_ERR_NULLINIFILE -26 #define COPYF_OK 0 #define COPYF_ERR_OPEN_FILE -10 #define COPYF_ERR_CREATE_FILE -11 #define COPYF_ERR_READ_FILE -12 #define COPYF_ERR_WRITE_FILE -13 #define TXTF_OK 0 #define TXTF_ERR_OPEN_FILE -1 #define TXTF_ERR_READ_FILE -2 #define TXTF_ERR_WRITE_FILE -3 #define TXTF_ERR_DELETE_FILE -4 #define TXTF_ERR_NOT_FOUND -5 int fgetline(FILE* fp, USGC* buffer, int maxlen); int copy_txt_file(FILE* source_file_fp, void* dest_file); int split_txt_line_fld(char* txt_line, char* sep_chars); char* get_txt_line_fld(char* txt_line, int fldno, char* buf); int split_key_val(USGC* buf, USGC** key, USGC** val); int read_txt_line(void* txt_file, int line_no, void* buf); int seek_txt_line(void* txt_file, void* line_tag, void* buf); int cfg_get_sections(void* cfg_file, USGC* sections[]); int cfg_get_keys(void* cfg_file, void* section, USGC* keys[]); struct txt_line_flds txt_line_fld[MAX_TXT_LINE_FLD]; char cfg_ssl = '[', cfg_ssr = ']'; /* .CFG/.INI file section symbol */ int cfg_section_line_no, cfg_key_line_no, cfg_key_lines; char* myini_trim(char* pStr) { char* pBegin; char* pEnd; long len; if (pStr == NULL) { fprintf(stderr, "myini_trim(): Null para pStr\n"); return NULL; } len=strlen(pStr); if(len<=0) { return pStr; } if(len>1000) { fprintf(stderr, "myini_trim(): pStr's len %d is wrong.",(int)len); return NULL; } pBegin = pStr; pEnd = pStr + strlen(pStr) - 1; while (isspace(*pBegin) && *pBegin != '\0') pBegin ++; while (isspace(*pEnd) && pEnd > pBegin) pEnd --; len = pEnd - pBegin + 1; memmove(pStr, pBegin, len); pStr[len] = '\0'; return pStr; } char* myini_getword(char* pStr, char* pWord, int Num) { char* pBegin; char* pEnd; int i; if (pStr == NULL) { fprintf(stderr, "GetWord(): Null para pStr\n"); return NULL; } if (pWord == NULL) { fprintf(stderr, "GetWord(): Null para pWord\n"); return NULL; } if (Num < 1) { fprintf(stderr, "GetWord(): Invalid para Num -- %d\n", Num); return NULL; } pEnd = pStr - 1; for (i = 0; i < Num; i ++) { pBegin = pEnd + 1; while (*pBegin != '\0' && isspace(*pBegin)) pBegin ++; if (*pBegin == '\0') return NULL; pEnd = pBegin + 1; while (*pEnd != '\0' && !isspace(*pEnd)) pEnd ++; if (*pEnd == '\0') break; } if (i+1 < Num) return NULL; strncpy(pWord, pBegin, pEnd-pBegin); pWord[pEnd-pBegin] = '\0'; return pWord; } /************************************************************************** * The Alternate of Unix fnmatch(), support '?', '*' *************************************************************************/ int myini_fnmatch(const char *pattern, const char *string, int flags) { int c1=0, c2=0, len1=0, len2=0, match=0; char *pPos=NULL; char Pattern[200], String[200]; memset(Pattern, 0x00, sizeof(Pattern)); memset(String, 0x00, sizeof(String)); sprintf(Pattern, "%s", pattern); sprintf(String, "%s", string); len1 = strlen(Pattern); len2 = strlen(String); while (c1 < len1 && c2 < len2) { if (Pattern[c1] == '?') { c1++; c2++; } else if (Pattern[c1] == '*') { c1++; while (c1 <= len1 && Pattern[c1] != String[c2] && c2 < len2) { c2++; } } else { if (Pattern[c1] == String[c2]) { c1++; c2++; } else { match = -1; break; } } } if ((c1 == len1) && (c2 == len2) && (match == 0)) { return 0; } else { return -1; } } /* ------------------------------------------------------------------------- */ /* Read 1 line text into *buffer from file *fp, return length actually read. maxlen --- max. length of *buffer CR or LF is not put into *buffer FF(0x0C) is put into *buffer and then return Ctrl-Z(0x1A) is put into *buffer and then return If EOF was detected then return -1 If an error occurred then return -2 */ int fgetline(FILE* fp, USGC* buffer, int maxlen) { int i, j; USGC ch1; for (i = 0, j = 0; i < maxlen; j++) { if (fread(&ch1, sizeof(USGC), 1, fp) != 1) { if (feof(fp) != 0) { if (j == 0) return -1; /* EOF */ else break; } if (ferror(fp) != 0) return -2; /* error */ return -2; } else { if (ch1 == '\n' || ch1 == 0x00) break; /* end of line */ if (ch1 == '\f' || ch1 == 0x1A) /* '\f': Form Feed */ { buffer[i++] = ch1; break; } if (ch1 != '\r') buffer[i++] = ch1; /* ignore CR */ } } buffer[i] = '\0'; return i; } /* ------------------------------------------------------------------------- */ /* Copy source_file to dest_file Return code: 0 -- Ok <0 -- Error */ //int copy_txt_file(void* source_file, void* dest_file) int copy_txt_file(FILE* source_file_fp, void* dest_file) { FILE* fp1, * fp2; USGC buf[1024 + 1]; int rc; fp1 = source_file_fp; // if ((fp1 = fopen((char *) source_file, "r")) == NULL) if(fp1 == NULL) return COPYF_ERR_OPEN_FILE; rc = COPYF_ERR_CREATE_FILE; if ((fp2 = fopen((char *) dest_file, "w")) == NULL) goto copy_end; while (1) { rc = COPYF_ERR_READ_FILE; memset(buf, 0x00, 1024 + 1); if (fgets((char *) buf, 1024, fp1) == NULL) { if (strlen(buf) == 0) { if (ferror(fp1) != 0) goto copy_end; break; /* EOF */ } } rc = COPYF_ERR_WRITE_FILE; if (fputs((char *) buf, fp2) == EOF) goto copy_end;