读vtcppatch.ini文件，并解析以下字段acDynLibName acOldFunc acNewFunc,将key值为acOldFunc acNewFunc,的vlaue放在结构体数组中，c语言

假设vtcppatch.ini文件的格式如下：

[FuncPatch1]
acDynLibName=lib1.dll
acOldFunc=old_func1
acNewFunc=new_func1

[FuncPatch2]
acDynLibName=lib2.dll
acOldFunc=old_func2
acNewFunc=new_func2

可以使用以下C语言代码读取并解析该文件：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_PATCHES 100

struct FuncPatch {
    char acOldFunc[256];
    char acNewFunc[256];
};

int main() {
    FILE *fp;
    char line[512], section[256];
    char acDynLibName[256], acOldFunc[256], acNewFunc[256];
    struct FuncPatch patches[MAX_PATCHES];
    int num_patches = 0, i;

    fp = fopen("vtcppatch.ini", "r");
    if (fp == NULL) {
        printf("Error opening file.\n");
        return 1;
    }

    while (fgets(line, sizeof(line), fp) != NULL) {
        // remove leading/trailing whitespace from line
        char *start = line, *end = line + strlen(line) - 1;
        while (*start && isspace(*start)) start++;
        while (end > start && isspace(*end)) end--;
        *(end+1) = '\0';

        if (*start == '[' && *end == ']') {
            // found a new section
            strncpy(section, start+1, end-start-1);
            section[end-start-1] = '\0';
        } else {
            // parse key=value pairs
            char *equals = strchr(start, '=');
            if (equals != NULL) {
                *equals = '\0';
                sscanf(start, "%[^=]", acDynLibName);
                sscanf(equals+1, "%[^=]", acOldFunc);
                if (strcmp(acDynLibName, "") != 0 && strcmp(acOldFunc, "") != 0) {
                    if (strcmp(acOldFunc, "acNewFunc") == 0) {
                        sscanf(equals+1, "%[^=]", acNewFunc);
                        if (strcmp(acNewFunc, "") != 0) {
                            // found a new patch
                            struct FuncPatch patch;
                            strncpy(patch.acOldFunc, acOldFunc, sizeof(patch.acOldFunc));
                            strncpy(patch.acNewFunc, acNewFunc, sizeof(patch.acNewFunc));
                            patches[num_patches++] = patch;
                        }
                    }
                }
            }
        }
    }

    fclose(fp);

    // print out the patches we found
    for (i = 0; i < num_patches; i++) {
        printf("Patch %d:\n", i+1);
        printf("  Old function name: %s\n", patches[i].acOldFunc);
        printf("  New function name: %s\n", patches[i].acNewFunc);
    }

    return 0;
}

这段代码会将vtcppatch.ini文件读入内存，并解析出所有包含"acOldFunc"和"acNewFunc"字段的部分。解析出的每个部分会被存储在一个结构体中，这个结构体包含两个字符串字段：acOldFunc和acNewFunc。最终，此程序会输出每个解析出的补丁的旧函数名和新函数名。