main.c

Main file for command-line application vanillapdf.tools. Print help and forwards parameters to the separate handlers.

#include "tools.h"
 
const int VANILLAPDF_TOOLS_ERROR_SUCCESS = 0;
const int VANILLAPDF_TOOLS_ERROR_INVALID_PARAMETERS = 1;
const int VANILLAPDF_TOOLS_ERROR_FAILURE = 255;
 
void print_version() {
    printf("vanillapdf.tools %d.%d.%d\n",
        VANILLAPDF_TOOLS_VERSION_MAJOR,
        VANILLAPDF_TOOLS_VERSION_MINOR,
        VANILLAPDF_TOOLS_VERSION_PATCH);
}
 
void print_help() {
    print_version();
    printf("\nUsage: vanillapdf.tools <command> [options]\n\n");
    printf("Commands:\n");
    printf("  merge           Merge multiple PDF files\n");
    printf("  filter          Filter PDF content\n");
    printf("  extract         Extract PDF content\n");
    printf("  extract_object  Extract PDF objects\n");
    printf("  sign            Sign a PDF document\n");
    printf("  sign_custom     Sign a PDF with custom handler\n");
    printf("  verify          Verify PDF signatures\n");
    printf("  validate        Validate PDF file structure\n");
    printf("  encrypt         Encrypt a PDF document\n");
    printf("  decrypt         Decrypt a PDF document\n");
    printf("  read            Read a PDF using memory IO strategy\n");
    printf("  resave          Re-save a PDF document\n");
    printf("  write_custom    Write PDF with custom handler\n");
    printf("\nOptions:\n");
    printf("  --help, -h      Show this help message\n");
    printf("  --version, -v   Show version information\n");
}
 
int main(int argc, char *argv[]) {
 
#if (defined(DEBUG) && defined(COMPILER_MICROSOFT_VISUAL_STUDIO))
    _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
    //_CrtSetBreakAlloc(803506);
#endif /* DEBUG && COMPILER_MICROSOFT_VISUAL_STUDIO */
 
    if (argc < 2) {
        print_help();
        return VANILLAPDF_TOOLS_ERROR_INVALID_PARAMETERS;
    }
 
    if (0 == strcmp(argv[1], "--version") || 0 == strcmp(argv[1], "-v")) {
        print_version();
        return VANILLAPDF_TOOLS_ERROR_SUCCESS;
    }
 
    if (0 == strcmp(argv[1], "--help") || 0 == strcmp(argv[1], "-h")) {
        print_help();
        return VANILLAPDF_TOOLS_ERROR_SUCCESS;
    }
 
    if (0 == strcmp(argv[1], "merge")) {
        return process_merge(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "filter")) {
        return process_filter(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "extract")) {
        return process_extract(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "extract_object")) {
        return process_extract_object(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "sign")) {
        return process_sign(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "sign_custom")) {
        return process_sign_custom(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "verify")) {
        return process_verify(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "validate")) {
        return process_validate(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "encrypt")) {
        return process_encrypt(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "decrypt")) {
        return process_decrypt(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "read")) {
        return process_read(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "resave")) {
        return process_resave(argc - 2, &argv[2]);
    }
 
    if (0 == strcmp(argv[1], "write_custom")) {
        return process_write_custom(argc - 2, &argv[2]);
    }
 
    print_help();
    return VANILLAPDF_TOOLS_ERROR_INVALID_PARAMETERS;
}