X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fprint_disk_info.c;h=5f12e930074946943cf6b89edad02d0a8f1bb7e1;hb=0f4fbf70afc607e2dcb14ef8292911042490d1dc;hp=ef028bdf3bd710c8d4ae9896fec35744be28c524;hpb=014e66563f2c988b07f1d168d7d673ff95c0c8a7;p=i3%2Fi3status diff --git a/src/print_disk_info.c b/src/print_disk_info.c index ef028bd..5f12e93 100644 --- a/src/print_disk_info.c +++ b/src/print_disk_info.c @@ -1,16 +1,19 @@ -// vim:ts=8:expandtab +// vim:ts=4:sw=4:expandtab +#include #include #include #include #include -#include #include #include #include #include -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || (__OpenBSD__) || defined(__DragonFly__) +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__APPLE__) #include #include +#elif defined(__NetBSD__) +#else +#include #endif #include #include @@ -22,22 +25,22 @@ #define MAX_EXPONENT 4 -static const char * const iec_symbols[MAX_EXPONENT+1] = {"", "Ki", "Mi", "Gi", "Ti"}; -static const char * const si_symbols[MAX_EXPONENT+1] = {"", "k", "M", "G", "T"}; -static const char * const custom_symbols[MAX_EXPONENT+1] = {"", "K", "M", "G", "T"}; +static const char *const iec_symbols[MAX_EXPONENT + 1] = {"", "Ki", "Mi", "Gi", "Ti"}; +static const char *const si_symbols[MAX_EXPONENT + 1] = {"", "k", "M", "G", "T"}; +static const char *const custom_symbols[MAX_EXPONENT + 1] = {"", "K", "M", "G", "T"}; /* * Formats bytes according to the given base and set of symbols. * */ -static int format_bytes(char *outwalk, uint64_t bytes, uint64_t base, const char * const symbols[]) { - double size = bytes; - int exponent = 0; - while (size >= base && exponent < MAX_EXPONENT) { - size /= base; - exponent += 1; - } - return sprintf(outwalk, "%.1f %sB", size, symbols[exponent]); +static int format_bytes(char *outwalk, uint64_t bytes, uint64_t base, const char *const symbols[]) { + double size = bytes; + int exponent = 0; + while (size >= base && exponent < MAX_EXPONENT) { + size /= base; + exponent += 1; + } + return sprintf(outwalk, "%.1f %sB", size, symbols[exponent]); } /* @@ -45,62 +48,62 @@ static int format_bytes(char *outwalk, uint64_t bytes, uint64_t base, const char * */ static int print_bytes_human(char *outwalk, uint64_t bytes, const char *prefix_type) { - if (strcasecmp(prefix_type, "decimal") == 0) { - return format_bytes(outwalk, bytes, DECIMAL_BASE, si_symbols); - } else if (strcasecmp(prefix_type, "custom") == 0) { - return format_bytes(outwalk, bytes, BINARY_BASE, custom_symbols); - } else { - return format_bytes(outwalk, bytes, BINARY_BASE, iec_symbols); - } + if (strcasecmp(prefix_type, "decimal") == 0) { + return format_bytes(outwalk, bytes, DECIMAL_BASE, si_symbols); + } else if (strcasecmp(prefix_type, "custom") == 0) { + return format_bytes(outwalk, bytes, BINARY_BASE, custom_symbols); + } else { + return format_bytes(outwalk, bytes, BINARY_BASE, iec_symbols); + } } /* * Determines whether remaining bytes are below given threshold. * */ -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__DragonFly__) +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__APPLE__) static bool below_threshold(struct statfs buf, const char *prefix_type, const char *threshold_type, const double low_threshold) { #else static bool below_threshold(struct statvfs buf, const char *prefix_type, const char *threshold_type, const double low_threshold) { #endif - if (strcasecmp(threshold_type, "percentage_free") == 0) { - return 100.0 * (double)buf.f_bfree / (double)buf.f_blocks < low_threshold; - } else if (strcasecmp(threshold_type, "percentage_avail") == 0) { - return 100.0 * (double)buf.f_bavail / (double)buf.f_blocks < low_threshold; - } else if (strcasecmp(threshold_type, "bytes_free") == 0) { - return (double)buf.f_bsize * (double)buf.f_bfree < low_threshold; - } else if (strcasecmp(threshold_type, "bytes_avail") == 0) { - return (double)buf.f_bsize * (double)buf.f_bavail < low_threshold; - } else if (threshold_type[0] != '\0' && strncasecmp(threshold_type+1, "bytes_", strlen("bytes_")) == 0) { - uint64_t base = strcasecmp(prefix_type, "decimal") == 0 ? DECIMAL_BASE : BINARY_BASE; - double factor = 1; - - switch (threshold_type[0]) { - case 'T': - case 't': - factor *= base; - case 'G': - case 'g': - factor *= base; - case 'M': - case 'm': - factor *= base; - case 'K': - case 'k': - factor *= base; - break; - default: - return false; - } + if (strcasecmp(threshold_type, "percentage_free") == 0) { + return 100.0 * (double)buf.f_bfree / (double)buf.f_blocks < low_threshold; + } else if (strcasecmp(threshold_type, "percentage_avail") == 0) { + return 100.0 * (double)buf.f_bavail / (double)buf.f_blocks < low_threshold; + } else if (strcasecmp(threshold_type, "bytes_free") == 0) { + return (double)buf.f_bsize * (double)buf.f_bfree < low_threshold; + } else if (strcasecmp(threshold_type, "bytes_avail") == 0) { + return (double)buf.f_bsize * (double)buf.f_bavail < low_threshold; + } else if (threshold_type[0] != '\0' && strncasecmp(threshold_type + 1, "bytes_", strlen("bytes_")) == 0) { + uint64_t base = strcasecmp(prefix_type, "decimal") == 0 ? DECIMAL_BASE : BINARY_BASE; + double factor = 1; + + switch (threshold_type[0]) { + case 'T': + case 't': + factor *= base; + case 'G': + case 'g': + factor *= base; + case 'M': + case 'm': + factor *= base; + case 'K': + case 'k': + factor *= base; + break; + default: + return false; + } - if (strcasecmp(threshold_type+1, "bytes_free") == 0) { - return (double)buf.f_bsize * (double)buf.f_bfree < low_threshold * factor; - } else if (strcasecmp(threshold_type+1, "bytes_avail") == 0) { - return (double)buf.f_bsize * (double)buf.f_bavail < low_threshold * factor; - } + if (strcasecmp(threshold_type + 1, "bytes_free") == 0) { + return (double)buf.f_bsize * (double)buf.f_bfree < low_threshold * factor; + } else if (strcasecmp(threshold_type + 1, "bytes_avail") == 0) { + return (double)buf.f_bsize * (double)buf.f_bavail < low_threshold * factor; } + } - return false; + return false; } /* @@ -108,98 +111,116 @@ static bool below_threshold(struct statvfs buf, const char *prefix_type, const c * human readable manner. * */ -void print_disk_info(yajl_gen json_gen, char *buffer, const char *path, const char *format, const char *prefix_type, const char *threshold_type, const double low_threshold) { - const char *walk; - char *outwalk = buffer; - bool colorful_output = false; +void print_disk_info(yajl_gen json_gen, char *buffer, const char *path, const char *format, const char *format_below_threshold, const char *format_not_mounted, const char *prefix_type, const char *threshold_type, const double low_threshold) { + const char *selected_format = format; + const char *walk; + char *outwalk = buffer; + bool colorful_output = false; + bool mounted = false; - INSTANCE(path); + INSTANCE(path); -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__DragonFly__) - struct statfs buf; +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__APPLE__) + struct statfs buf; - if (statfs(path, &buf) == -1) - return; -#else - struct statvfs buf; + if (statfs(path, &buf) == -1) + return; - if (statvfs(path, &buf) == -1) - return; -#endif - - FILE *mntentfile = setmntent("/etc/mtab", "r"); - struct mntent *m; - bool found = false; + mounted = true; +#elif defined(__NetBSD__) + struct statvfs buf; - while (NULL != (m = getmntent(mntentfile))) { - if (strcmp(m->mnt_dir, path) == 0) { - found = true; - break; - } - } - endmntent(mntentfile); + if (statvfs(path, &buf) == -1) + return; - if (!found) { - *buffer = '\0'; - OUTPUT_FULL_TEXT(buffer); - return; - } - - if (low_threshold > 0 && below_threshold(buf, prefix_type, threshold_type, low_threshold)) { - START_COLOR("color_bad"); - colorful_output = true; + mounted = true; +#else + struct statvfs buf; + + if (statvfs(path, &buf) == -1) { + /* If statvfs errors, e.g., due to the path not existing, + * we consider the device not mounted. */ + mounted = false; + } else { + char *sanitized = sstrdup(path); + if (strlen(sanitized) > 1 && sanitized[strlen(sanitized) - 1] == '/') + sanitized[strlen(sanitized) - 1] = '\0'; + FILE *mntentfile = setmntent("/etc/mtab", "r"); + if (mntentfile == NULL) { + mntentfile = setmntent("/proc/mounts", "r"); } + if (mntentfile == NULL) { + fprintf(stderr, "i3status: files /etc/mtab and /proc/mounts aren't accessible\n"); + } else { + struct mntent *m; - for (walk = format; *walk != '\0'; walk++) { - if (*walk != '%') { - *(outwalk++) = *walk; - continue; - } - - if (BEGINS_WITH(walk+1, "free")) { - outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_bfree, prefix_type); - walk += strlen("free"); - } - - if (BEGINS_WITH(walk+1, "used")) { - outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * ((uint64_t)buf.f_blocks - (uint64_t)buf.f_bfree), prefix_type); - walk += strlen("used"); - } - - if (BEGINS_WITH(walk+1, "total")) { - outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_blocks, prefix_type); - walk += strlen("total"); - } - - if (BEGINS_WITH(walk+1, "avail")) { - outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_bavail, prefix_type); - walk += strlen("avail"); - } - - if (BEGINS_WITH(walk+1, "percentage_free")) { - outwalk += sprintf(outwalk, "%.01f%%", 100.0 * (double)buf.f_bfree / (double)buf.f_blocks); - walk += strlen("percentage_free"); - } - - if (BEGINS_WITH(walk+1, "percentage_used_of_avail")) { - outwalk += sprintf(outwalk, "%.01f%%", 100.0 * (double)(buf.f_blocks - buf.f_bavail) / (double)buf.f_blocks); - walk += strlen("percentage_used_of_avail"); + while ((m = getmntent(mntentfile)) != NULL) { + if (strcmp(m->mnt_dir, sanitized) == 0) { + mounted = true; + break; } + } + endmntent(mntentfile); + } + free(sanitized); + } +#endif - if (BEGINS_WITH(walk+1, "percentage_used")) { - outwalk += sprintf(outwalk, "%.01f%%", 100.0 * (double)(buf.f_blocks - buf.f_bfree) / (double)buf.f_blocks); - walk += strlen("percentage_used"); - } + if (!mounted) { + if (format_not_mounted == NULL) + format_not_mounted = ""; + selected_format = format_not_mounted; + } else if (low_threshold > 0 && below_threshold(buf, prefix_type, threshold_type, low_threshold)) { + START_COLOR("color_bad"); + colorful_output = true; + if (format_below_threshold != NULL) + selected_format = format_below_threshold; + } + + for (walk = selected_format; *walk != '\0'; walk++) { + if (*walk != '%') { + *(outwalk++) = *walk; + + } else if (BEGINS_WITH(walk + 1, "free")) { + outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_bfree, prefix_type); + walk += strlen("free"); + + } else if (BEGINS_WITH(walk + 1, "used")) { + outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * ((uint64_t)buf.f_blocks - (uint64_t)buf.f_bfree), prefix_type); + walk += strlen("used"); + + } else if (BEGINS_WITH(walk + 1, "total")) { + outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_blocks, prefix_type); + walk += strlen("total"); + + } else if (BEGINS_WITH(walk + 1, "avail")) { + outwalk += print_bytes_human(outwalk, (uint64_t)buf.f_bsize * (uint64_t)buf.f_bavail, prefix_type); + walk += strlen("avail"); + + } else if (BEGINS_WITH(walk + 1, "percentage_free")) { + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * (double)buf.f_bfree / (double)buf.f_blocks, pct_mark); + walk += strlen("percentage_free"); + + } else if (BEGINS_WITH(walk + 1, "percentage_used_of_avail")) { + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * (double)(buf.f_blocks - buf.f_bavail) / (double)buf.f_blocks, pct_mark); + walk += strlen("percentage_used_of_avail"); + + } else if (BEGINS_WITH(walk + 1, "percentage_used")) { + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * (double)(buf.f_blocks - buf.f_bfree) / (double)buf.f_blocks, pct_mark); + walk += strlen("percentage_used"); + + } else if (BEGINS_WITH(walk + 1, "percentage_avail")) { + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * (double)buf.f_bavail / (double)buf.f_blocks, pct_mark); + walk += strlen("percentage_avail"); - if (BEGINS_WITH(walk+1, "percentage_avail")) { - outwalk += sprintf(outwalk, "%.01f%%", 100.0 * (double)buf.f_bavail / (double)buf.f_blocks); - walk += strlen("percentage_avail"); - } + } else { + *(outwalk++) = '%'; } + } - if (colorful_output) - END_COLOR; + if (colorful_output) + END_COLOR; - *outwalk = '\0'; - OUTPUT_FULL_TEXT(buffer); + *outwalk = '\0'; + OUTPUT_FULL_TEXT(buffer); }