94 行
2.4 KiB
C
94 行
2.4 KiB
C
/* This program is used to embed arbitrary data into a C binary. It takes
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* a list of files as an input, and produces a .c data file that contains
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* contents of all these files as collection of char arrays.
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*
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* Usage: ./mkdata <this_file> <file1> [file2, ...] > embedded_data.c
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <err.h>
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#include <errno.h>
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#include <string.h>
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const char* header =
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"#include <stddef.h>\n"
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"#include <string.h>\n"
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"#include <sys/types.h>\n"
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"#include \"src/http_server.h\"\n"
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"\n"
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"static const struct embedded_file embedded_files[] = {\n";
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const char* footer =
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" {NULL, NULL, NULL, 0}\n"
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"};\n"
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"\n"
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"const struct embedded_file *find_embedded_file(const char *name) {\n"
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" const struct embedded_file *p;\n"
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" for (p = embedded_files; p->name != NULL; p++)\n"
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" if (!strcmp(p->name, name))\n"
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" return p;\n"
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" return NULL;\n"
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"}\n";
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static const char* get_mime(char* filename)
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{
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const char *extension = strrchr(filename, '.');
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if(!strcmp(extension, ".js"))
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return "application/javascript";
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if(!strcmp(extension, ".css"))
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return "text/css";
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if(!strcmp(extension, ".ico"))
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return "image/vnd.microsoft.icon";
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if(!strcmp(extension, ".woff"))
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return "application/font-woff";
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if(!strcmp(extension, ".ttf"))
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return "application/x-font-ttf";
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if(!strcmp(extension, ".eot"))
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return "application/octet-stream";
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if(!strcmp(extension, ".svg"))
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return "image/svg+xml";
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if(!strcmp(extension, ".html"))
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return "text/html";
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return "text/plain";
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}
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int main(int argc, char *argv[])
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{
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int i, j, buf;
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FILE *fd;
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if(argc <= 1)
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err(EXIT_FAILURE, "Usage: ./%s <this_file> <file1> [file2, ...] > embedded_data.c", argv[0]);
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for(i = 1; i < argc; i++)
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{
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fd = fopen(argv[i], "r");
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if(!fd)
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err(EXIT_FAILURE, "%s", argv[i]);
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printf("static const unsigned char v%d[] = {", i);
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j = 0;
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while((buf = fgetc(fd)) != EOF)
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{
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if(!(j % 12))
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putchar('\n');
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printf(" %#04x, ", buf);
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j++;
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}
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printf(" 0x00\n};\n\n");
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fclose(fd);
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}
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fputs(header, stdout);
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for(i = 1; i < argc; i++)
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{
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printf(" {\"%s\", v%d, \"%s\", sizeof(v%d) - 1}, \n",
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argv[i]+6, i, get_mime(argv[i]), i);
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}
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fputs(footer, stdout);
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return EXIT_SUCCESS;
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}
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