diff options
Diffstat (limited to 'cqrlogo.c')
| -rw-r--r-- | cqrlogo.c | 17 |
1 files changed, 10 insertions, 7 deletions
@@ -17,6 +17,9 @@ #include "config.h" +#define URLPATTERN "^[hH][tT][tT][pP][sS]\\?://%s/" +#define TEXTSTOLEN "This QR Code has been stolen from %s!" + /* a bitmap */ struct bitmap_t { int width; @@ -46,12 +49,12 @@ int generate_png (struct bitmap_t *bitmap, char *http_referer) { png_set_compression_level(png_ptr, Z_BEST_COMPRESSION); #ifdef PNG_TEXT_SUPPORTED +#define VERSIONSTR VERSION " (libpng %s, zlib %s)" png_text text[3]; char *version; - const char *v_libpng = png_libpng_ver, *v_zlib = zlib_version; - version = malloc(18 + strlen(VERSION) + strlen(v_libpng) + strlen(v_zlib)); - sprintf(version, VERSION " (libpng %s, zlib %s)", png_libpng_ver, zlib_version); + version = malloc(sizeof(VERSIONSTR) + strlen(png_libpng_ver) + strlen(zlib_version)); + sprintf(version, VERSIONSTR, png_libpng_ver, zlib_version); text[0].compression = PNG_TEXT_COMPRESSION_zTXt; text[0].key = "comment"; @@ -184,8 +187,8 @@ int main(int argc, char **argv) { http_referer = server_name; } else { /* prepare pattern matching */ - pattern = malloc(28 + strlen(server_name)); - sprintf(pattern, "^[hH][tT][tT][pP][sS]\\?://%s/", server_name); + pattern = malloc(sizeof(URLPATTERN) + strlen(server_name)); + sprintf(pattern, URLPATTERN, server_name); if (regcomp(&preg, pattern, 0) != 0) { fprintf(stderr, "regcomp() failed, returning nonzero\n"); return EXIT_FAILURE; @@ -193,8 +196,8 @@ int main(int argc, char **argv) { /* check if the QR-Code is for the correct server */ if ((referer = regexec(&preg, http_referer, 1, pmatch, 0)) != 0) { - http_referer = malloc(44 + strlen(server_name)); - sprintf(http_referer, "This QR Code has been stolen from %s!", server_name); + http_referer = malloc(sizeof(TEXTSTOLEN) + strlen(server_name)); + sprintf(http_referer, TEXTSTOLEN, server_name); } regfree(&preg); |